WO2015089812A1

WO2015089812A1 - All-optical logic gate

Info

Publication number: WO2015089812A1
Application number: PCT/CN2013/090036
Authority: WO
Inventors: 罗达新; 郝沁汾; 刘耀达
Original assignee: 华为技术有限公司
Priority date: 2013-12-20
Filing date: 2013-12-20
Publication date: 2015-06-25
Also published as: CN104956260A; CN104956260B

Abstract

An all-optical logic gate, which utilizes a beam combiner and a beam splitter for light, a light-controlled optical switch, the superpositionability of light, and the interference principle of light to implement logic operations and utilizes adjustments to the length of an optical waveguide to adjust the phase of a light wave, thus satisfying requirements of a computer and providing various all-optical logic gates. These all-optical logic gates allow for facilitated silicon integration and are easy to implement. The all-optical logic gates comprise: a NAND gate, an OR gate, a NOR gate, an XNOR gate, an AND gate, and a NOT gate. The all-optical logic gates are advantageous over electronic logic gates in terms of power consumption, speed, and area. Also, application of these all-optical logic gates allows for direct building of various arithmetic function blocks.

Description

一种全光逻辑门技术领域本申请涉及集成电路技术领域，特别涉及一种全光逻辑门。 TECHNICAL FIELD The present application relates to the field of integrated circuit technologies, and in particular, to an all-optical logic gate.

背景技术 Background technique

在数字电路中，逻辑门是数字电路中最基本的组成结构，有了各种逻辑门便可以实现各种复杂的计算。一般来说，逻辑门包括与门、或门、非门、与非门、或非门等多种。 In digital circuits, logic gates are the most basic components of digital circuits. With a variety of logic gates, complex calculations can be implemented. In general, logic gates include AND gates, OR gates, NOT gates, NAND gates, and NOR gates.

传统中的逻辑门都是以电计算来实现的，传递的是电信号。但是随着半导体工艺水平的提高，集成电路朝着集成度高、功耗低以及速度快等方向发展，目前为止，集成电路依然遵循着摩尔定律的规律。但是，无论集成电路如何发展，电计算的速度不可能无限发展下去，并且目前电计算的带宽依然无法满足一些领域的要求，集成电路的集成度也会在不久的将来达到极限。因此，需要提供一种新的计算方式，来支持计算速度和带宽的进一步提高。 Traditional logic gates are implemented by electrical calculations, which are electrical signals. However, with the improvement of the level of semiconductor technology, integrated circuits are developing toward high integration, low power consumption, and high speed. So far, integrated circuits still follow the law of Moore's Law. However, no matter how integrated circuits are developed, the speed of electrical computing cannot be infinitely developed, and the current bandwidth of electrical computing still cannot meet the requirements of some fields, and the integration of integrated circuits will reach its limit in the near future. Therefore, there is a need to provide a new way of computing to support further improvements in computing speed and bandwidth.

由于光在速度和宽度上都有优势，因此，光计算可以替代电计算以适应时代的需要。 Since light has advantages in both speed and width, optical calculations can replace electrical calculations to accommodate the needs of the time.

目前某些学者提出了用光学导向逻辑制作逻辑门，但其大部分方案都不全是由光信号来实现的，实质上是电信号输入，光信号输出的形式。这种结构在逻辑门的级联时，需要在中间***一级光电转换，使得上一级输出的光信号转换为电信号，作为下一级的输入。这样结构上比较复杂，并且也不是全部由光信号来实现。 At present, some scholars have proposed the use of optical steering logic to make logic gates, but most of them are not realized by optical signals, which are essentially the form of electrical signal input and optical signal output. In the cascading of logic gates, this structure needs to insert a first-level photoelectric conversion in the middle, so that the optical signal outputted from the upper stage is converted into an electrical signal as an input of the next stage. This is more complicated in structure and is not all realized by optical signals.

因此，本领域技术人员需要提供一种光逻辑门来代替现有技术中的电逻辑门来提高计算的速度和带宽。 Accordingly, those skilled in the art need to provide an optical logic gate to replace the electrical logic gate of the prior art to increase the speed and bandwidth of the calculation.

发明内容 Summary of the invention

为了解决上述技术问题，本申请实施例提供了一种全光逻辑门，以提高计算的速度和带宽。 In order to solve the above technical problem, the embodiment of the present application provides an all-optical logic gate to improve the calculation speed and bandwidth.

第一方面，提供一种全光逻辑门，该全光逻辑门为与非门，包括四个输入光源、三个分束器、五个合束器和一个光控光开关；所述光控光开关为高有效；所述四个输入光源分别为第一变量 A、第二变量^ 光强与逻辑 1对应光强相等的第一光信号和光强与逻辑 1对应光强的 1/2相等的第二光信号；所述第一光信号和第二光信号的初始相位相同；所述四个输入光源的波长均相等；所述 A和 B有光强时 ,对应的光强为 I, I对应逻辑 1； A和 B无光强时 , 对应的光强为 0, 对应逻辑 0; In a first aspect, an all-optical logic gate is provided, the all-optical logic gate is a NAND gate, including four input light sources, three beam splitters, five combiners, and one light-controlled optical switch; The optical switch is high effective; the four input light sources are the first variable A, the second variable ^ the light intensity and the logic 1 corresponding light a first optical signal of equal intensity and a second optical signal having a light intensity equal to 1/2 of the optical intensity of the logic 1; an initial phase of the first optical signal and the second optical signal being the same; the four input light sources The wavelengths are all equal; when the A and B have light intensity, the corresponding light intensity is I, I corresponds to logic 1; when A and B have no light intensity, the corresponding light intensity is 0, corresponding to logic 0;

所述 A输入第一分束器的输入端，所述第一分束器的第一输出端连接所述第一合束器的第一输入端；第一分束器的第一输出端和第一合束器的第一输入端的距离为所述输入光源波长的整数倍； The A input is input to the input end of the first beam splitter, the first output end of the first beam splitter is connected to the first input end of the first beam combiner; the first output end of the first beam splitter is The distance of the first input end of the first combiner is an integer multiple of the wavelength of the input source;

所述第一光信号输入第二分束器的输入端，所述第二分束器的第一输出端连接所述第一合束器的第二输入端，第二分束器的第一输出端和第一合束器的第二输入端的距离为所述输入光源波长的整数倍； The first optical signal is input to an input end of the second beam splitter, and the first output end of the second beam splitter is connected to the second input end of the first beam combiner, and the first end of the second beam splitter The distance between the output end and the second input end of the first combiner is an integer multiple of the wavelength of the input source;

所述第二分束器的第二输出端连接第二合束器的第一输入端，第二分束器的第二输出端和第二合束器的第一输入端的距离为所述输入光源波长的整数倍； a second output end of the second beam splitter is coupled to the first input end of the second combiner, and a distance between the second output end of the second beam splitter and the first input end of the second combiner is the input An integer multiple of the wavelength of the light source;

所述 B输入第三分束器的输入端，所述第三分束器的第一输出端连接所述第二合束器的第二输入端，第三分束器的第一输出端和第二合束器的第二输入端的距离为所述输入光源波长的整数倍； The B input is input to the third beam splitter, the first output end of the third beam splitter is connected to the second input end of the second beam combiner, and the first output end of the third beam splitter is The distance of the second input end of the second combiner is an integer multiple of the wavelength of the input source;

所述第三分束器的第二输出端连接第三合束器的第一输入端，第三分束器的第二输出端和第三合束器的第一输入端的距离为所述输入光源波长的整数倍； a second output end of the third beam splitter is coupled to the first input end of the third combiner, and a distance between the second output end of the third beam splitter and the first input end of the third combiner is the input An integer multiple of the wavelength of the light source;

所述第一分束器的第二输出端连接第三合束器的第二输入端，第一分束器的第二输出端和第三合束器的第二输入端的距离为所述输入光源 1/2波长的奇数倍； a second output end of the first beam splitter is coupled to a second input end of the third combiner, and a distance between the second output end of the first beam splitter and the second input end of the third combiner is the input An odd multiple of 1/2 wavelength of the light source;

所述第一合束器的输出端和第二合束器的输出端分别连接第四合束器的两个输入端，第一合束器的输出端和第四合束器的输入端的距离为所述输入光源波长的整数倍；第二合束器的输出端和第四合束器的输入端的距离为所述输入光源波长的整数倍； An output end of the first combiner and an output end of the second combiner are respectively connected to two input ends of the fourth combiner, and the distance between the output end of the first combiner and the input end of the fourth combiner a multiple of the wavelength of the input source; the distance between the output of the second combiner and the input of the fourth combiner is an integer multiple of the wavelength of the input source;

所述第三合束器的输出端连接所述光控光开关的控制端，所述光控光开关的输入端连接所述第二光信号，所述第四合束器的输出端和所述光控光开关的输出端连接第五合束器的两个输入端，第四合束器的输出端和第五合束器的输入端的距离为所述输入光源波长的整数倍；所述光控光开关的输出端和第五合束器的输入端的距离为所述输入光源波长的整数倍；第五合束器的输出端作为该与非门的输出端。 An output end of the third combiner is connected to a control end of the optical control optical switch, an input end of the optical control optical switch is connected to the second optical signal, and an output end of the fourth combiner The output end of the light control optical switch is connected to the two input ends of the fifth combiner, the output of the fourth combiner and the output of the fifth combiner The distance from the input end is an integer multiple of the wavelength of the input light source; the distance between the output end of the light control optical switch and the input end of the fifth combiner is an integer multiple of the wavelength of the input light source; the output end of the fifth combiner As the output of the NAND gate.

结合第一方面的第一种可能的实现方式，所述输入光源为单波长单模激光器发出的光束。 In conjunction with the first possible implementation of the first aspect, the input source is a beam of light emitted by a single wavelength single mode laser.

第二方面，提供一种全光逻辑门，该全光逻辑门为或门，包括：两个输入光源，一个合束器和一个光控光开关； In a second aspect, an all-optical logic gate is provided, the all-optical logic gate being an OR gate, comprising: two input light sources, a combiner and a light control optical switch;

所述光控光开关为低有效； The light control optical switch is low effective;

所述两个输入光源分别为第一变量 A和第二变量 B; 所述 A和 B有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A和 B无光强时，对应的光强为 0, 对应逻辑 0; The two input light sources are respectively a first variable A and a second variable B; when the light intensity is A and B, the corresponding light intensity is I, I corresponds to logic 1; when the A and B are no light, The corresponding light intensity is 0, corresponding to logic 0;

所述光控光开关的输入端连接所述 A;所述光控光开关的输出端连接所述合束器的第一输入端； The input end of the optical control optical switch is connected to the A; the output end of the optical control optical switch is connected to the first input end of the combiner;

所述光控光开关的控制端连接所述 B; The control end of the optical control optical switch is connected to the B;

所述合束器的第二输入端连接所述 B; The second input end of the combiner is connected to the B;

所述合束器的输出端作为该或门的输出端。 The output of the combiner acts as the output of the OR gate.

第三方面，提供一种全光逻辑门，该全光逻辑门为或非门，包括：三个输入光源、一个合束器和一个光控光开关； In a third aspect, an all-optical logic gate is provided, the all-optical logic gate being a NOR gate, comprising: three input light sources, a combiner and a light control optical switch;

所述三个输入光源分别为第一变量 A、第二变量 B和光强与逻辑 1对应光强相等的第一光信号； The three input light sources are a first variable A, a second variable B, and a first optical signal having a light intensity equal to that of the logic 1;

所述 A和 B有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A和 B无光强时，对应的光强为 0, 对应逻辑 0; When A and B have light intensity, the corresponding light intensity is I, I corresponds to logic 1; when A and B have no light intensity, the corresponding light intensity is 0, corresponding to logic 0;

所述合束器的第一输入端连接所述 A,所述合束器的第二输入端连接所述第一光信号；所述 A和所述第一光信号的初始相位相反； a first input end of the combiner is coupled to the A, and a second input end of the combiner is coupled to the first optical signal; an initial phase of the A and the first optical signal being opposite;

所述合束器的输出端连接所述光控光开关的输入端； An output end of the combiner is connected to an input end of the optical control optical switch;

所述光控光开关的输出端作为该或非门的输出端。 The output end of the light control optical switch serves as an output of the NOR gate.

第三方面，提供一种全光逻辑门，该全光逻辑门为同或门，包括：三个输入光源、一个合束器和一个光控光开关； In a third aspect, an all-optical logic gate is provided, and the all-optical logic gate is an OR gate, including: a light source, a combiner and a light control optical switch;

所述三个光源分别为第一变量 A、第二变量 B和光强与逻辑 1对应光强相等的第一光信号； The three light sources are a first variable A, a second variable B, and a first optical signal having a light intensity equal to that of the logic 1;

所述 A和 B的初始相位相反； The initial phases of A and B are opposite;

所述合束器的两个输入端分别连接 A和 B; The two input ends of the combiner are respectively connected to A and B;

所述合束器的输出端连接所述光控光开关的控制端； The output end of the combiner is connected to the control end of the optical control optical switch;

所述光控光开关的输出端作为该同或门的输出端。 The output end of the optically controlled optical switch serves as an output of the same OR gate.

第四方面，提供一种全光逻辑门，该全光逻辑门为同或门，包括：四个输入光源、两个合束器和一个光控光开关； In a fourth aspect, an all-optical logic gate is provided, the all-optical logic gate being an identical OR gate, comprising: four input light sources, two combiners, and one light control optical switch;

所述光控光开关为高有效； The light control optical switch is highly effective;

所述四个输入光源分别为第一变量 A、第二变量^ 光强与逻辑 1对应光强相等的第一光信号和第二光信号； The four input light sources are respectively a first variable A, a second variable, a first optical signal and a second optical signal having a light intensity equal to that of the logic 1;

所述 A和 B的初始相位相同，所述第一光信号的初始相位和 A的初始相位相反； The initial phases of the A and B are the same, and the initial phase of the first optical signal is opposite to the initial phase of A;

所述第一光信号和 A分别连接第一合束器的两个输入端； The first optical signal and A are respectively connected to two input ends of the first combiner;

第一合束器的输出端连接第二合束器的第一输入端，所述 B 连接第二合束器的第二输入端； The output end of the first combiner is connected to the first input end of the second combiner, and the B is connected to the second input end of the second combiner;

所述第二合束器的输出端连接所述光控光开关的控制端； The output end of the second combiner is connected to the control end of the optical control optical switch;

所述光控光开关的输入端连接所述第二光信号 ,所述光控光开关的输出端作为该同或门的输出端。 An input end of the optical control optical switch is connected to the second optical signal, and an output end of the optical control optical switch is used as an output end of the same OR gate.

第五方面，提供一种全光逻辑门，该全光逻辑门为与门，包括：两个输入光源和一个光控光开关； In a fifth aspect, an all-optical logic gate is provided, the all-optical logic gate being an AND gate, comprising: two input light sources and one light control optical switch;

所述两个输入光源分别为：第一变量 A和第二变量 B; 所述 A和 B有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A和 B无光强时，对应的光强为 0, 对应逻辑 0; The two input light sources are: a first variable A and a second variable B; When A and B have light intensity, the corresponding light intensity is I, I corresponds to logic 1; when A and B are no light, the corresponding light intensity is 0, corresponding to logic 0;

所述 A连接所述光控光开关的输入端； The A is connected to an input end of the optical control optical switch;

所述 B连接所述光控光开关的控制端； The B is connected to the control end of the optical control optical switch;

所述光控光开关的输出端作为该与门的输出端。 The output end of the light control optical switch serves as an output end of the AND gate.

第六方面，提供一种全光逻辑门，该全光逻辑门为非门，包括：两个输入光源和一个光控光开关； In a sixth aspect, an all-optical logic gate is provided, the all-optical logic gate being a NOT gate, comprising: two input light sources and one light control optical switch;

所述两个输入光源一个为第一变量 A,另一个为光强与逻辑 1对应光强相等的第一光信号； One of the two input light sources is a first variable A, and the other is a first optical signal having a light intensity equal to that of the logic 1;

所述 A有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A无光强时，对应的光强为 0, 对应逻辑 0; When the light A has a light intensity, the corresponding light intensity is I, I corresponds to logic 1; when the A has no light intensity, the corresponding light intensity is 0, corresponding to logic 0;

所述 A连接所述光控光开关的控制端； The A is connected to the control end of the optical control optical switch;

所述第一光信号连接所述光控光开关的输入端； The first optical signal is connected to an input end of the optical control optical switch;

所述光控光开关的输出端为该非门的输出端。 The output end of the optical control optical switch is the output end of the non-gate.

由上述实施例可以看出，与现有技术相比，本申请具有如下优点：利用光的合束器、分束器、光控光开关以及光的可叠加性、光的干涉原理来实现逻辑运算，并且利用调节光波导的长度（即距离）来调节光波的相位，从而满足计算的要求，提供了多种全光逻辑门，这些全光逻辑门可以有利于硅基集成，并且实现简单。本申请提供的全光逻辑门包括：与非门、或门、或非门、同或门、与门、非门；光逻辑门在功耗、速度和面积上比电逻辑门均有优势，并且应用这些全光逻辑门可以直接搭建各种计算功能模块，例如小的有加法器，大的有 CPU等。 It can be seen from the above embodiments that the present application has the following advantages compared with the prior art: using a light combiner, a beam splitter, a light control optical switch, and the superposition of light and the principle of interference of light to implement logic The operation, and adjusting the length of the optical waveguide (ie, the distance) to adjust the phase of the optical wave to meet the calculation requirements, provides a variety of all-optical logic gates, which can facilitate silicon-based integration and is simple to implement. The all-optical logic gates provided by the present application include: NAND gates, OR gates, NOR gates, same OR gates, AND gates, and NOT gates; optical logic gates have advantages over electrical logic gates in power consumption, speed, and area. And the application of these all-optical logic gates can directly build various computing function modules, such as small adders, large CPUs, and the like.

附图说明 DRAWINGS

为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art description will be briefly described below, and those skilled in the art will Other drawings may also be obtained from these drawings without the inventive labor.

图 1是本申请提供的分束器示意图；图 2是本申请提供的合束器的示意图； Figure 1 is a schematic view of a beam splitter provided by the present application; 2 is a schematic view of a combiner provided by the present application;

图 3a是本申请提供的一种光控光开关的示意图； FIG. 3a is a schematic diagram of a light control optical switch provided by the present application; FIG.

图 3b是本申请提供的另一种光控光开关的示意图； FIG. 3b is a schematic diagram of another optical control optical switch provided by the present application; FIG.

图 4是本申请提供的全光逻辑门为与非门时的示意图 4 is a schematic diagram of the all-optical logic gate provided by the present application as a NAND gate.

图 5a是图 4中当 A为 0, B为 0的对应图； Figure 5a is a corresponding diagram of Figure 4 when A is 0 and B is 0;

图 5b是图 4中当 A为 0, B为 1的对应图； Figure 5b is a corresponding diagram of Figure 4 when A is 0 and B is 1.

图 5c是图 4中当 A为 1 , B为 0的对应图； Figure 5c is a corresponding diagram of Figure 4 when A is 1 and B is 0;

图 5d是图 4中当 A为 1 , B为 1的对应图； Figure 5d is a corresponding diagram of Figure 4 when A is 1 and B is 1.

图 6是本申请提供的全光逻辑门为或门时的示意图； 6 is a schematic diagram of the all-optical logic gate provided by the present application as an OR gate;

图 7是本申请提供的全光逻辑门为或非门的示意图； 7 is a schematic diagram of a all-optical logic gate provided by the present application as a NOR gate;

图 8a是本申请提供的全光逻辑门为同或门时一实施例示意图； 8a is a schematic diagram of an embodiment in which the all-optical logic gate provided by the present application is an identical gate;

图 8b是本申请提供的全光逻辑门为同或门的另一实施例示意图；图 9是本申请提供的全光逻辑门为与门时的示意图； FIG. 8b is a schematic diagram of another embodiment of the all-optical logic gate provided by the present application; FIG. 9 is a schematic diagram of the all-optical logic gate provided by the present application as an AND gate;

图 10是本申请提供的全光逻辑门为非门时的示意图； 10 is a schematic diagram of the all-optical logic gate provided by the present application when it is a NOT gate;

图 11是本申请提供的光控光开关的示意图。 11 is a schematic diagram of a light control optical switch provided by the present application.

具体实施方式为了使本领域技术人员能够更好地理解和实施本发明的技术方案，下面首先介绍本领域的几个基本概念。 DETAILED DESCRIPTION OF THE EMBODIMENTS In order to enable those skilled in the art to better understand and implement the technical solutions of the present invention, several basic concepts in the field are first introduced below.

参见图 1 , 该图为分束器示意图。 See Figure 1, which is a schematic diagram of the beam splitter.

分束器的输入端的光信号为 A, 则输出端分为两个光信号，分别为 A1和 The optical signal at the input of the beam splitter is A, then the output is divided into two optical signals, A1 and

A2, A1和 A2的光强分别是 A的 1/2, A1和 A2的相位与 A相同。 The light intensities of A2, A1 and A2 are 1/2 of A, respectively, and the phases of A1 and A2 are the same as A.

参见图 2, 该图为合束器示意图。 See Figure 2, which is a schematic diagram of the combiner.

顾名思义，合束器与图 1所示的分束器是作用正好相反的器件，两个输入的光信号分别为 B1和 B2, 则输出端的信号合成为一个信号 B, B为 B1和 B2 两个光信号相干叠加。 As the name suggests, the combiner and the beam splitter shown in Figure 1 are the opposite devices. The two input optical signals are B1 and B2, respectively, and the signal at the output is combined into a signal B, and B is B1 and B2. The optical signals are coherently superimposed.

参见图 3a和 3b, 该图为光控光开关示意图。 Referring to Figures 3a and 3b, the figure is a schematic diagram of a light-controlled optical switch.

光控光开关是光路传输中的控制开关器件，包括三个端，分别为输入端，输出端和控制端，当控制端的信号为有效信号时，输入端的光信号传送到输出端输出；当控制端的信号为无效信号时，输入端的光信号不会被传送到输出端。光控光开关的控制端分为高有效和低有效，图 3a所示的是高有效，即控制端的信号为 1时，输入端的光信号被输出到输出端，反之地有效，指的是控制端的信号是 0时，输入端的光信号被输出到输出端，这种如图 3b所示。 The light control optical switch is a control switching device in the optical path transmission, and includes three ends, which are an input end, an output end and a control end respectively. When the signal of the control end is a valid signal, the optical signal of the input end is transmitted to the output end of the output; when controlling When the signal at the end is an invalid signal, the optical signal at the input is not transmitted to the output. The control end of the optical control optical switch is divided into high effective and low effective. Figure 3a shows high efficiency, that is, when the signal of the control terminal is 1, the optical signal of the input end is output to the output terminal, and vice versa, it refers to the control. When the signal at the end is 0, the optical signal at the input is output to the output, as shown in Figure 3b.

下面介绍本发明所应用的原理。 The principles applied by the present invention are described below.

第一：利用单波长单模激光器发出的光束，有光强表示信号 1 , 无光强表示信号 0。 First: A light beam emitted by a single-wavelength single-mode laser has a light intensity indicating a signal 1 and no light intensity indicating a signal 0.

第二：假设输入的光信号的初始相位用箭头向上 ΐ表示，由于光的波动传输特性，输入的光信号的相位在前进方向上以波长为周期变化，当前进的距离为一个波长的整数倍时，相位保持不变，当前进的距离为半个波长的奇数倍时，相位变为相反，用箭头向下 i表示。此处的相反指的是与初始相位相差 180 度，可以理解的是也可以是相差 180度的奇数倍。 Second: It is assumed that the initial phase of the input optical signal is indicated by an arrow ΐ. Due to the wave propagation characteristic of the light, the phase of the input optical signal changes in the direction of the wavelength in the forward direction. The current distance is an integer multiple of one wavelength. When the phase remains unchanged and the current distance is an odd multiple of half a wavelength, the phase becomes opposite and is indicated by an arrow down i. The opposite here refers to a difference of 180 degrees from the initial phase, and it can be understood that it can also be an odd multiple of 180 degrees.

第三：如果两束光的振幅相同，且相位相反，由于其波动性干涉相消，叠加后的光强为 0; 如果两束光的振幅相同，当两束光的距离相差是波长的整数倍时，则出现相干增强，振幅为单束光强的 2倍。本申请实施例中利用光的合束器、分束器、光控光开关以及光的可叠加性、光的干涉原理来实现逻辑运算，并且利用调节光波导的长度 (即距离 )来调节光波的相位，从而满足计算的要求，提供了多种全光逻辑门，这些全光逻辑门可以有利于硅基集成，并且实现简单。在功耗、速度和面积上比电逻辑门均有优势，并且应用这些全光逻辑门可以直接搭建各种计算功能模块，例如小的有加法器，大的有 CPU等。 Third: If the amplitudes of the two beams are the same and the phases are opposite, the superimposed light intensity is 0 due to the volatility interference cancellation; if the two beams have the same amplitude, when the distances of the two beams are different, the wavelength is an integer. When doubled, coherence enhancement occurs, and the amplitude is twice the intensity of a single beam. In the embodiment of the present application, the optical combiner, the beam splitter, the optically controlled optical switch, and the superposition of light and the interference principle of light are used to implement logic operations, and the length (ie, distance) of the optical waveguide is adjusted to adjust the light wave. The phase, to meet the computational requirements, provides a variety of all-optical logic gates that facilitate silicon-based integration and are simple to implement. It has advantages over electrical logic gates in power consumption, speed and area, and these all-optical logic gates can be used to directly build various computing function modules, such as small adders and large CPUs.

下面结合附图及实施例，对本申请实施例进行详细描述。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。 The embodiments of the present application are described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting.

下面结合附图逐一对本申请实施例提供的各种全光逻辑门进行介绍。需要说明的是，以下实施例中的各个光逻辑门的输入光源均是单波长单模激光器发出的光束。与非门实施例一： The various all-optical logic gates provided by the embodiments of the present application will be described below with reference to the accompanying drawings. It should be noted that the input light sources of the respective optical logic gates in the following embodiments are all light beams emitted by a single wavelength single mode laser. NAND gate example one:

参见图 4, 该图为本申请提供的全光逻辑门为与非门时的示意图。本实施例提供的全光逻辑门为与非门，包括四个输入光源、三个分束器、五个合束器和一个光控光开关；所述光控光开关为高有效； Referring to FIG. 4, the figure is a schematic diagram of the all-optical logic gate provided by the present application as a NAND gate. The all-optical logic gate provided in this embodiment is a NAND gate, comprising four input light sources, three beam splitters, five combiners and one light control optical switch; the light control optical switch is high effective;

所述四个输入光源分别为第一变量 A、第二变量^ 光强与逻辑 1对应光强相等的第一光信号和光强与逻辑 1对应光强的 1/2相等的第二光信号；所述第一光信号和第二光信号的初始相位相同；所述四个输入光源的波长均相等；如图所示，第一光信号用 1 1来表示，第二光信号用 1/2 1来表示；第一光信号和第二光信号的箭头均向下表示相同的初始相位。 The four input light sources are respectively a first variable A, a second variable, a first optical signal having a light intensity equal to that of the logic 1, and a second optical signal having a light intensity equal to 1/2 of the corresponding light intensity of the logic 1. The initial phase of the first optical signal and the second optical signal are the same; the wavelengths of the four input light sources are equal; as shown, the first optical signal is represented by 1 1 , and the second optical signal is represented by 1 1 2 1 is shown; the arrows of the first optical signal and the second optical signal both indicate the same initial phase downward.

需要说明的是，光强 I可以根据具体需要来设置具体的强度，在本申请的各个实施例中不做具体限定。 It should be noted that the light intensity I can be set according to specific needs, and is not specifically limited in the various embodiments of the present application.

需要说明的是，当光波导的距离为所述输入光源波长的整数倍时，不会改变光源的相位，即相位保持不变。 It should be noted that when the distance of the optical waveguide is an integral multiple of the wavelength of the input light source, the phase of the light source is not changed, that is, the phase remains unchanged.

所述第一分束器的第二输出端连接第三合束器的第二输入端，第一分束器的第二输出端和第三合束器的第二输入端的距离为所述输入光源 1/2波长的奇数倍； The second output end of the first beam splitter is connected to the second input end of the third beam combiner, the first beam splitter The distance between the second output end and the second input end of the third combiner is an odd multiple of 1/2 wavelength of the input light source;

当光波导的距离为所述输入光源 1/2波长的奇数倍时，将改变相位，相位变成完全相反，即相差 180度。 When the distance of the optical waveguide is an odd multiple of 1/2 wavelength of the input source, the phase will be changed and the phase will be completely opposite, i.e., 180 degrees out of phase.

所述第三合束器的输出端连接所述光控光开关的控制端，所述光控光开关的输入端连接所述第二光信号，所述第四合束器的输出端和所述光控光开关的输出端连接第五合束器的两个输入端，第四合束器的输出端和第五合束器的输入端的距离为所述输入光源波长的整数倍；所述光控光开关的输出端和第五合束器的输入端的距离为所述输入光源波长的整数倍；第五合束器的输出端作为该与非门的输出端。 An output end of the third combiner is connected to a control end of the optical control optical switch, an input end of the optical control optical switch is connected to the second optical signal, and an output end of the fourth combiner The output end of the light control optical switch is connected to two input ends of the fifth combiner, and the distance between the output end of the fourth combiner and the input end of the fifth combiner is an integer multiple of the wavelength of the input light source; The distance between the output end of the optically controlled optical switch and the input end of the fifth combiner is an integer multiple of the wavelength of the input source; the output of the fifth combiner serves as the output of the NAND gate.

下面结合真值表 1来分析图 4的工作原理。 The working principle of Figure 4 is analyzed in conjunction with the truth table 1 below.

表 1 输入 A 输出 Table 1 Input A Output

0 0 1 0 0 1

0 1 1 0 1 1

1 0 1 1 0 1

1 1 0 参见图 5a, 该图为图 4中当 A为 0, B为 0的对应图。 1 1 0 See Figure 5a, which is a corresponding diagram in Figure 4 when A is 0 and B is 0.

从图 5a中可以看出，当 A对应的逻辑为 0, B对应的逻辑也为 0时，光的路径在第一合束器、第二分束器、第四合束器和第五合束器上，最终输出结果的逻辑为 1。 As can be seen from Fig. 5a, when the logic corresponding to A is 0 and the logic corresponding to B is also 0, the path of the light is at the first combiner, the second splitter, the fourth combiner, and the fifth On the beamer, the logic of the final output is 1.

参见图 5b, 该图为图 4中当 A为 0, B为 1的对应图。 Referring to Fig. 5b, the figure is a corresponding diagram in Fig. 4 when A is 0 and B is 1.

从图 5b中可以看出，当 A对应的逻辑为 0, B对应的逻辑为 1时，光的路径在第一合束器、第二分束器、第二合束器、第三分束器、第三合束器、第四合束器、光控光开关和第五合束器上，最终输出结果为逻辑 1。参见图 5c, 该图为图 4中当 A为 1 , B为 0的对应图。 As can be seen from FIG. 5b, when the logic corresponding to A is 0 and the logic corresponding to B is 1, the path of the light is at the first combiner, the second splitter, the second combiner, and the third splitter. The final output is logic 1 on the third combiner, the fourth combiner, the optically controlled optical switch, and the fifth combiner. Referring to FIG. 5c, the figure is a corresponding diagram in FIG. 4 when A is 1 and B is 0.

从图 5c中可以看出，当 A对应的逻辑为 1 , B对应的逻辑为 0时，光的路径除了不在第三分束器上传播外，其他器件上均有传播，最终输出的结果为逻辑 1。 As can be seen from Fig. 5c, when the logic corresponding to A is 1 and the logic corresponding to B is 0, the path of the light is propagated on the other devices except for the third beam splitter. The final output is Logic 1.

参见图 5d, 该图为图 4中当 A为 1 , B为 1的对应图。 Referring to Fig. 5d, the figure is a corresponding diagram in Fig. 4 when A is 1 and B is 1.

从图 5d中可以看出，当 A对应的逻辑为 1 , B对应的逻辑为 1时，光的路径在第一分束器、第一合束器、第二分束器、第二合束器、第三分束器、第三合束器上，最终输出的结果为逻辑 0。 As can be seen from FIG. 5d, when the logic corresponding to A is 1 and the logic corresponding to B is 1, the path of the light is at the first beam splitter, the first beam combiner, the second beam splitter, and the second beam. On the third beam splitter, the third combiner, the final output results in a logic 0.

以上实施例是本申请提供的与非门实施例，从以上分析可知，本申请中的与非门全部是由光信号来实现的，这样可以完成目前电***中的与非门的功 The above embodiments are the NAND gate embodiments provided by the present application. From the above analysis, the NAND gates in the present application are all implemented by optical signals, so that the NAND function in the current electrical system can be completed.

•6匕 •6匕

匕。或门实施例一： dagger. OR gate example 1:

参见图 6, 该图为本申请提供的全光逻辑门为或门时的示意图。 Referring to FIG. 6, the figure is a schematic diagram of the all-optical logic gate provided as an OR gate.

本实施例提供的全光逻辑门为或门；包括：两个输入光源，一个合束器和一个光控光开关； The all-optical logic gate provided by this embodiment is an OR gate; comprising: two input light sources, a combiner and a light control optical switch;

所述光控光开关为低有效；即光控光开关的控制端为 0时，光控光开关的输入信号被输出到输出端； The light control optical switch is low effective; that is, when the control end of the light control optical switch is 0, the input signal of the light control optical switch is output to the output end;

所述两个输入光源分别为第一变量 A和第二变量 B; 所述第一变量 A和第二变量 B有光强时，对应的光强为 I, I对应逻辑 1 ; 第一变量 A和第二变量 B无光强时，对应的光强为 0, 对应逻辑 0; The two input light sources are respectively a first variable A and a second variable B; when the first variable A and the second variable B have light intensity, the corresponding light intensity is I, I corresponds to logic 1; the first variable A And when the second variable B has no light intensity, the corresponding light intensity is 0, corresponding to logic 0;

参见表 2, 表 2为或门的真值表。 See Table 2, Table 2 for the truth table of the OR gate.

表 2 输入 A 輪入. B 输出 Table 2 Input A round. B output

0 0 0 0 0 0

0 1 1 0 1 1

1 0 1 1 0 1

1 1 1 在图 6中并没有标明相位的信息，没有任何箭头，这样是说明对所有相位都可以实现或门的功能。 1 1 1 There is no phase information in Figure 6. There are no arrows, which means that the OR gate can be implemented for all phases.

下面结合图 6分析一种，例如 A为 0, B为 1时，由于光控光开关为低有效，因此 B为 1 时，该光控光开关不会导通，即光控光开关的输出端没有信号， B为 1输入到合束器的一个输入端，合束器的输出端输出为 1 , 从而实现了或门的功能。或非门实施例一： In the following, a kind of analysis is carried out in combination with FIG. 6. For example, when A is 0 and B is 1, since the optical control optical switch is low effective, when B is 1, the optical control optical switch does not conduct, that is, the output of the optical control optical switch There is no signal at the end, B is 1 input to one input of the combiner, and the output of the combiner is 1 , thus realizing the function of the OR gate. NOR gate example 1:

参见图 7, 该图为本申请提供的全光逻辑门为或非门的示意图。 Referring to FIG. 7, the figure is a schematic diagram of the all-optical logic gate provided by the present application as a NOR gate.

本实施例提供的全光逻辑门为或非门，包括：三个输入光源、一个合束器和一个光控光开关； The all-optical logic gate provided in this embodiment is a NOR gate, and includes: three input light sources, one combiner and one light control optical switch;

所述 A和 B有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A和 B无光强时，对应的光强为 0, 对应逻辑 0; 所述合束器的第一输入端连接所述 A,所述合束器的第二输入端连接所述第一光信号；所述 A和所述第一光信号的初始相位相反； When A and B have light intensity, the corresponding light intensity is I, I corresponds to logic 1; when A and B are no light, the corresponding light intensity is 0, corresponding to logic 0; An input is connected to the A, and a second input of the combiner is connected to the first optical signal; an initial phase of the A and the first optical signal is opposite;

参见表 3 , 表 3为或非门的真值表。 See Table 3, Table 3 for the truth table of the NOR gate.

表 3

table 3

0 0 1 0 0 1

0 1 0 0 1 0

1 0 0 1 0 0

1 1 0 下面以 A为 1 , B为 0为例来说明图 7所示的或非门的工作原理。 1 1 0 The following is an example in which A is 1 and B is 0 to illustrate the working principle of the NOR gate shown in Fig. 7.

由于合束器的一个输入信号 A为 1 , 另一个输入信号也为 1 , 并且两个输入信号的相位相反，这样互相抵消，合束器输出的信号为 0。当 B为 0时，光控光开关导通，光控光开关的输入信号 0被输出到输出端，因此最终输出的结果为逻辑 0。同或门实施例一： Since one input signal A of the combiner is 1 and the other input signal is also 1, and the phases of the two input signals are opposite, thus cancel each other, the signal output by the combiner is zero. When B is 0, the optical control optical switch is turned on, and the input signal 0 of the optical control optical switch is output to the output terminal, so the final output result is logic 0. Same-door embodiment 1:

参见图 8a, 该图为本申请提供的全光逻辑门为同或门时一实施例示意图。本实施例提供的全光逻辑门为同或门，包括：三个输入光源、一个合束器和一个光控光开关； Referring to FIG. 8a, the figure is a schematic diagram of an embodiment of the all-optical logic gate provided by the present application. The all-optical logic gate provided in this embodiment is an OR gate, and includes: three input light sources, one combiner and one light control optical switch;

所述 A和 B有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A和 B无光强时，对应的光强为 0, 对应逻辑 0; 所述 A和 B的初始相位相反； When A and B have light intensity, the corresponding light intensity is I, I corresponds to logic 1; when A and B have no light intensity, the corresponding light intensity is 0, corresponding to logic 0; the initial of A and B The opposite phase;

参见表 4, 表 4为同或门的真值表。 See Table 4, Table 4 is the truth table of the same OR gate.

表 4 物入 A ！；： \B Table 4 Into the A! ;: \B

0 0 1 0 0 1

0 1 0 0 1 0

1 0 0 1 0 0

1 1 1 下面以 A为 1 , B为 0为例介绍图 8a所示的同或门的工作原理。 1 1 1 The following describes the working principle of the same OR gate shown in Figure 8a with A being 1 and B being 0.

合束器的一个输入信号为 A, 另一个输入信号为 B, 由于 B为 0, 所以合束器的输出信号为 A, 由于 A为 1 , 而光控光开关为低有效，因此，光控光开关不导通，最终的输出结果为逻辑 0。图 8a中对 A和 B的相位是有要求的，要求这两个输入变量的初始相位相反。同或门实施例二： One input signal of the combiner is A, and the other input signal is B. Since B is 0, the output signal of the combiner is A, since A is 1 and the optical control switch is active low, therefore, the light control The optical switch is not conducting, and the final output is logic 0. The phase of A and B is required in Figure 8a, requiring the initial phase of the two input variables to be opposite. Same or two door embodiment two:

下面介绍本申请提供了另一种全光逻辑门实现的同或门。 The following describes that the present application provides another all-optical logic gate implementation of the same OR gate.

参见图 8b, 该图为本申请提供的全光逻辑门为同或门的另一实施例示意图。 Referring to Fig. 8b, the figure is a schematic view of another embodiment of the all-optical logic gate provided by the present application.

本实施例提供的全光逻辑门为同或门，包括：四个输入光源、两个合束器和一个光控光开关； The all-optical logic gate provided in this embodiment is an OR gate, and includes: four input light sources, two combiners, and one light control optical switch;

所述 A和 B有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A和 B无光强时，对应的光强为 0, 对应逻辑 0; 所述 A和 B的初始相位相同，所述第一光信号的初始相位和 A的初始相位相反； When A and B have light intensity, the corresponding light intensity is I, I corresponds to logic 1; when A and B have no light intensity, the corresponding light intensity is 0, corresponding to logic 0; the initial of A and B The phases are the same, the initial phase of the first optical signal is opposite to the initial phase of A;

所述第二合束器的输出端连接所述光控光开关的控制端；所述光控光开关的输入端连接所述第二光信号 ,所述光控光开关的输出端作为该同或门的输出端。 The output end of the second combiner is connected to the control end of the optical control optical switch; The input end of the optical control optical switch is connected to the second optical signal, and the output end of the optical control optical switch serves as an output end of the same OR gate.

真值表同样参见表 4, 下面以 A为 1 , B为 0说明图 8b所示的同或门的工作原理。由于 A为 1 , 所以第一合束器的两个输入端为 1 ΐ和 1 i , 这样两个输入信号互相抵消，第一合束器的输出为 0, 即第二合束器的一个输入为 0, 另一个输入信号 B为 0, 这样第二合束器的输出为 0, 由于光控光开关为高有效，因此，最终的输出结果为逻辑 0, 与真值表的结果相符合。与门实施例一： The truth table is also shown in Table 4. Below, A is 1 and B is 0 to illustrate the working principle of the same OR gate shown in Figure 8b. Since A is 1, the two inputs of the first combiner are 1 ΐ and 1 i , so that the two input signals cancel each other out, and the output of the first combiner is 0, that is, one input of the second combiner 0, the other input signal B is 0, so the output of the second combiner is 0. Since the optically controlled optical switch is active high, the final output is logic 0, which is consistent with the result of the truth table. Example 1:

参见图 9, 该图为本申请提供的全光逻辑门为与门时的示意图。 Referring to FIG. 9, the figure is a schematic diagram of an all-optical logic gate provided as an AND gate for the present application.

本实施例提供的全光逻辑门为与门，包括：两个输入光源和一个光控光开关； The all-optical logic gate provided by this embodiment is an AND gate, comprising: two input light sources and one light control light switch;

所述两个输入光源分别为：第一变量 A和第二变量 B; The two input light sources are: a first variable A and a second variable B;

本实施例提供的与门很简单，只需要利用一个光控光开关就可以实现，并且对于 A和 B也没有相位的要求。 The AND gate provided in this embodiment is very simple, and only needs to be realized by using a light control optical switch, and there is no phase requirement for A and B.

参见表 5, 表 5为与门的真值表。 See Table 5, Table 5 for the truth table of the AND gate.

0 1 0 0 1 0

1 0 0 1 0 0

1 1 1 下面结合图 9以 A为 1 , B为 1为例介绍本申请提供的与门的工作原理。由于该光控光开关为高有效，因此， B为 1时，该光控光开关导通，即 A被输出到输出端，因此输出为 1 , 与真值表一致。非门实施例一： 1 1 1 The working principle of the AND gate provided by the present application will be described below with reference to FIG. 9 with A being 1 and B being 1 as an example. Since the optical control optical switch is highly effective, when B is 1, the optical control optical switch is turned on, that is, A is output to the output terminal, so the output is 1, which is consistent with the truth table. Non-door embodiment 1:

参见图 10, 该图为本申请提供的全光逻辑门为非门时的示意图。 Referring to FIG. 10, the figure is a schematic diagram of the all-optical logic gate provided in the present application.

本实施例提供的全光逻辑门为非门，包括：两个输入光源和一个光控光开关； The all-optical logic gate provided in this embodiment is a non-gate, comprising: two input light sources and one light control light switch;

本实施例提供的非门仅用一个光控光开关就可以实现，并且对 A和 1和没有相位的要求。 The non-gate provided by this embodiment can be realized by only one optical control optical switch, and has no phase requirement for A and 1 and .

参见表 6, 表 6为本申请提供的非门的真值表。 See Table 6, Table 6 for the non-gate truth table provided by the present application.

表 6

Table 6

0 1 0 1

1 0 下面结合图 10以 A为 1为例来介绍，由于该实施例中光控光开关是低有效，因此，当 A是 1时，该光控光开关不导通，因此输出为 0, 实现了非门的功能，与真值表一致。 1 0 is taken as an example with reference to FIG. 10 as A. Since the optical control optical switch in this embodiment is low effective, when A is 1, the optical control optical switch is not turned on, so the output is 0. The function of the non-gate is realized, which is consistent with the truth table.

以上实施例中提供的各种逻辑门均是全部由光逻辑门来实现的，由于光信号比电信号在计算速度和带宽上均有优势，并且，在功耗低、面积小，由以上实施例提供的基本逻辑门可以实现数字电路中的各种计算功能。以上实施例中均是介绍本申请实施例提供的光逻辑门，下面介绍光逻辑门中应用的光控光开关的一种实现方式。 The various logic gates provided in the above embodiments are all implemented by the optical logic gate. Since the optical signal has advantages in calculation speed and bandwidth compared with the electrical signal, and the power consumption is low and the area is small, the above implementation is performed. The basic logic gates provided in the examples enable various computing functions in digital circuits. In the above embodiments, the optical logic gates provided in the embodiments of the present application are introduced. The following describes an implementation manner of the optical control optical switches used in the optical logic gates.

参见图 11 , 该图为本申请提供的光控光开关的示意图。 Referring to FIG. 11, the figure is a schematic diagram of a light control optical switch provided by the present application.

光控光开关 400的作用就是控制光路的通断，光控光开关 400的控制端与光控制信号的相位无关。 The function of the light control optical switch 400 is to control the on and off of the optical path, and the control end of the optical control optical switch 400 is independent of the phase of the optical control signal.

光控光开关 400的输入端一般由两束光组成，其中一束用于改变微腔的谐振条件，称为抽运光 1000; 另一束光载有信号，称为探测光 2000。 The input end of the optically controlled optical switch 400 is generally composed of two beams, one of which is used to change the resonant condition of the microcavity, referred to as pumping light 1000; the other of which carries a signal, referred to as probe light 2000.

光控光开关 400的输出光为 5000。 The light output of the light control optical switch 400 is 5000.

光控光开关 400的工作原理与电光开关类似，但是不同的是，光控光开关 400中的载流子的注入方式主要依赖于抽运光照射硅波导时产生光生载流子。载流子浓度变化所导致的材料折射率以及吸收系数变化最终反映为微腔谐振条件变化，从而对特定波长的光实现开关。 The working principle of the optical control optical switch 400 is similar to that of the electro-optical switch, but the difference is that the carrier injection mode of the optical control optical switch 400 mainly depends on the generation of photo-generated carriers when the pumping light illuminates the silicon waveguide. The change in the refractive index and absorption coefficient of the material caused by the change in carrier concentration is ultimately reflected as a change in the microcavity resonance condition, thereby effecting switching of light of a specific wavelength.

以上对本发明所提供的一种全光逻辑门进行了详细介绍，本文中应用了具帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。 The above is a detailed description of an all-optical logic gate provided by the present invention. The method and the core idea for helping to understand the present invention are applied herein. Meanwhile, for those skilled in the art, according to the idea of the present invention, The details of the present invention and the scope of the application are subject to change. The contents of the present specification are not to be construed as limiting the present invention.

Claims

权利要求 Rights request

1、一种全光逻辑门，其特征在于，该全光逻辑门为与非门，包括四个输入光源、三个分束器、五个合束器和一个光控光开关；所述光控光开关为高有效； 1. An all-optical logic gate, characterized in that the all-optical logic gate is a NAND gate and includes four input light sources, three beam splitters, five beam combiners and a light-controlled light switch; the light The light control switch is highly effective;

所述四个输入光源分别为第一变量 A、第二变量^ 光强与逻辑 1对应光强相等的第一光信号和光强与逻辑 1对应光强的 1/2相等的第二光信号；所述第一光信号和第二光信号的初始相位相同；所述四个输入光源的波长均相等；所述 A和 B有光强时 ,对应的光强为 I, I对应逻辑 1； A和 B无光强时 , 对应的光强为 0, 对应逻辑 0; The four input light sources are respectively a first variable A, a second variable A, a first light signal whose light intensity is equal to the light intensity corresponding to logic 1, and a second light signal whose light intensity is equal to 1/2 of the light intensity corresponding to logic 1. ; The initial phases of the first optical signal and the second optical signal are the same; The wavelengths of the four input light sources are all equal; When the A and B have light intensities, the corresponding light intensities are I, and I corresponds to logic 1; When A and B have no light intensity, the corresponding light intensity is 0, corresponding to logic 0;

所述 A输入第一分束器的输入端，所述第一分束器的第一输出端连接所述第一合束器的第一输入端；第一分束器的第一输出端和第一合束器的第一输入端的距离为所述输入光源波长的整数倍； The A input is input to the input end of the first beam splitter, and the first output end of the first beam splitter is connected to the first input end of the first beam combiner; the first output end of the first beam splitter and The distance between the first input end of the first beam combiner is an integer multiple of the wavelength of the input light source;

所述第一光信号输入第二分束器的输入端，所述第二分束器的第一输出端连接所述第一合束器的第二输入端，第二分束器的第一输出端和第一合束器的第二输入端的距离为所述输入光源波长的整数倍； The first optical signal is input to the input end of the second beam splitter, the first output end of the second beam splitter is connected to the second input end of the first beam combiner, and the first end of the second beam splitter is connected to the second input end of the second beam splitter. The distance between the output end and the second input end of the first beam combiner is an integer multiple of the wavelength of the input light source;

所述第二分束器的第二输出端连接第二合束器的第一输入端，第二分束器的第二输出端和第二合束器的第一输入端的距离为所述输入光源波长的整数倍； The second output end of the second beam splitter is connected to the first input end of the second beam combiner, and the distance between the second output end of the second beam splitter and the first input end of the second beam combiner is the distance between the second output end of the second beam splitter and the first input end of the second beam combiner. Integer multiples of the wavelength of the light source;

所述 B输入第三分束器的输入端，所述第三分束器的第一输出端连接所述第二合束器的第二输入端，第三分束器的第一输出端和第二合束器的第二输入端的距离为所述输入光源波长的整数倍； The B input is the input end of the third beam splitter, the first output end of the third beam splitter is connected to the second input end of the second beam combiner, the first output end of the third beam splitter and The distance between the second input end of the second beam combiner is an integer multiple of the wavelength of the input light source;

所述第三分束器的第二输出端连接第三合束器的第一输入端，第三分束器的第二输出端和第三合束器的第一输入端的距离为所述输入光源波长的整数倍； The second output end of the third beam splitter is connected to the first input end of the third beam combiner, and the distance between the second output end of the third beam splitter and the first input end of the third beam combiner is the distance between the second output end of the third beam splitter and the first input end of the third beam combiner. Integer multiples of the wavelength of the light source;

所述第一分束器的第二输出端连接第三合束器的第二输入端，第一分束器的第二输出端和第三合束器的第二输入端的距离为所述输入光源 1/2波长的奇数倍； The second output end of the first beam splitter is connected to the second input end of the third beam combiner, and the distance between the second output end of the first beam splitter and the second input end of the third beam combiner is the input Odd multiples of 1/2 wavelength of the light source;

所述第一合束器的输出端和第二合束器的输出端分别连接第四合束器的两个输入端，第一合束器的输出端和第四合束器的输入端的距离为所述输入光源波长的整数倍；第二合束器的输出端和第四合束器的输入端的距离为所述输入光源波长的整数倍； The output end of the first beam combiner and the output end of the second beam combiner are respectively connected to the two input ends of the fourth beam combiner, and the distance between the output end of the first beam combiner and the input end of the fourth beam combiner is for the input light An integer multiple of the wavelength of the source; the distance between the output end of the second beam combiner and the input end of the fourth beam combiner is an integer multiple of the wavelength of the input light source;

所述第三合束器的输出端连接所述光控光开关的控制端，所述光控光开关的输入端连接所述第二光信号，所述第四合束器的输出端和所述光控光开关的输出端连接第五合束器的两个输入端，第四合束器的输出端和第五合束器的输入端的距离为所述输入光源波长的整数倍；所述光控光开关的输出端和第五合束器的输入端的距离为所述输入光源波长的整数倍；第五合束器的输出端作为该与非门的输出端。 The output end of the third beam combiner is connected to the control end of the light-controlled light switch, the input end of the light-controlled light switch is connected to the second optical signal, and the output end of the fourth beam combiner is connected to the control end of the light-controlled light switch. The output end of the light-controlled optical switch is connected to the two input ends of the fifth beam combiner, and the distance between the output end of the fourth beam combiner and the input end of the fifth beam combiner is an integer multiple of the wavelength of the input light source; The distance between the output end of the light-controlled optical switch and the input end of the fifth beam combiner is an integer multiple of the wavelength of the input light source; the output end of the fifth beam combiner serves as the output end of the NAND gate.

2、根据权利要求 1所述的全光逻辑门，其特征在于，所述输入光源为单波长单模激光器发出的光束。 2. The all-optical logic gate according to claim 1, wherein the input light source is a light beam emitted by a single-wavelength single-mode laser.

3、一种全光逻辑门，其特征在于，该全光逻辑门为或门，包括：两个输入光源，一个合束器和一个光控光开关； 3. An all-optical logic gate, characterized in that the all-optical logic gate is an OR gate and includes: two input light sources, a beam combiner and a light-controlled light switch;

所述光控光开关为低有效； The light-controlled light switch is low effective;

所述两个输入光源分别为第一变量 A和第二变量 B; 所述 A和 B有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A和 B无光强时，对应的光强为 0, 对应逻辑 0; The two input light sources are the first variable A and the second variable B respectively; when A and B have light intensity, the corresponding light intensity is I, and I corresponds to logic 1; when A and B have no light intensity, The corresponding light intensity is 0, corresponding to logic 0;

所述光控光开关的输入端连接所述 A;所述光控光开关的输出端连接所述合束器的第一输入端； The input end of the light-controlled light switch is connected to the A; the output end of the light-controlled light switch is connected to the first input end of the beam combiner;

所述光控光开关的控制端连接所述 B; The control terminal of the light-controlled light switch is connected to the B;

所述合束器的输出端作为该或门的输出端。 The output end of the combiner serves as the output end of the OR gate.

4、一种全光逻辑门，其特征在于，该全光逻辑门为或非门，包括：三个输入光源、一个合束器和一个光控光开关； 4. An all-optical logic gate, characterized in that the all-optical logic gate is a NOR gate and includes: three input light sources, a beam combiner and a light-controlled light switch;

所述三个输入光源分别为第一变量 A、第二变量 B和光强与逻辑 1对应光强相等的第一光信号； The three input light sources are respectively the first variable A, the second variable B and the first light signal whose light intensity is equal to the light intensity corresponding to logic 1;

所述 A和 B有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A和 B无光强时，对应的光强为 0, 对应逻辑 0; When A and B have light intensity, the corresponding light intensity is I, and I corresponds to logic 1; when A and B have no light intensity, the corresponding light intensity is 0, which corresponds to logic 0;

所述合束器的第一输入端连接所述 A,所述合束器的第二输入端连接所述第一光信号；所述 A和所述第一光信号的初始相位相反； The first input end of the combiner is connected to the A, and the second input end of the combiner is connected to the The first optical signal; The initial phases of the A and the first optical signal are opposite;

所述合束器的输出端连接所述光控光开关的输入端； The output end of the beam combiner is connected to the input end of the light-controlled light switch;

所述光控光开关的输出端作为该或非门的输出端。 The output end of the light-controlled light switch serves as the output end of the NOR gate.

5、一种全光逻辑门，其特征在于，该全光逻辑门为同或门，包括：三个输入光源、一个合束器和一个光控光开关； 5. An all-optical logic gate, characterized in that the all-optical logic gate is an NOR gate and includes: three input light sources, a beam combiner and a light-controlled light switch;

所述三个光源分别为第一变量 A、第二变量 B和光强与逻辑 1对应光强相等的第一光信号； The three light sources are respectively the first variable A, the second variable B and the first light signal whose light intensity is equal to the light intensity corresponding to logic 1;

所述合束器的两个输入端分别连接 A和 B; The two input ends of the combiner are connected to A and B respectively;

所述合束器的输出端连接所述光控光开关的控制端； The output end of the beam combiner is connected to the control end of the light-controlled light switch;

所述光控光开关的输出端作为该同或门的输出端。 The output end of the light-controlled light switch serves as the output end of the NOR gate.

6、一种全光逻辑门，其特征在于，该全光逻辑门为同或门，包括：四个输入光源、两个合束器和一个光控光开关； 6. An all-optical logic gate, characterized in that the all-optical logic gate is an NOR gate and includes: four input light sources, two beam combiners and a light-controlled light switch;

所述光控光开关为高有效； The light-controlled light switch is highly effective;

所述四个输入光源分别为第一变量 A、第二变量^ 光强与逻辑 1对应光强相等的第一光信号和第二光信号； The four input light sources are respectively the first variable A, the second variable A, the first optical signal and the second optical signal whose light intensity is equal to the light intensity corresponding to logic 1;

所述 A和 B的初始相位相同，所述第一光信号的初始相位和 A的初始相位相反； The initial phases of A and B are the same, and the initial phase of the first optical signal is opposite to the initial phase of A;

所述第一光信号和 A分别连接第一合束器的两个输入端； The first optical signal and A are respectively connected to the two input terminals of the first beam combiner;

第一合束器的输出端连接第二合束器的第一输入端，所述 B 连接第二合束器的第二输入端； The output end of the first beam combiner is connected to the first input end of the second beam combiner, and the B is connected to the second input end of the second beam combiner;

所述第二合束器的输出端连接所述光控光开关的控制端； The output end of the second beam combiner is connected to the control end of the light-controlled light switch;

所述光控光开关的输入端连接所述第二光信号，所述光控光开关的输出端作为该同或门的输出端。 The input end of the light-controlled light switch is connected to the second light signal, and the output end of the light-controlled light switch as the output of the NOR gate.

7、一种全光逻辑门，其特征在于，该全光逻辑门为与门，包括：两个输入光源和一个光控光开关； 7. An all-optical logic gate, characterized in that the all-optical logic gate is an AND gate and includes: two input light sources and a light-controlled light switch;

所述两个输入光源分别为：第一变量 A和第二变量 B; The two input light sources are: first variable A and second variable B;

所述 A连接所述光控光开关的输入端； The A is connected to the input end of the light-controlled light switch;

所述 B连接所述光控光开关的控制端； The B is connected to the control end of the light-controlled light switch;

所述光控光开关的输出端作为该与门的输出端。 The output end of the light-controlled light switch serves as the output end of the AND gate.

8、一种全光逻辑门，其特征在于，该全光逻辑门为非门，包括：两个输入光源和一个光控光开关； 8. An all-optical logic gate, characterized in that the all-optical logic gate is a NOT gate and includes: two input light sources and a light-controlled light switch;

所述两个输入光源一个为第一变量 A,另一个为光强与逻辑 1对应光强相等的第一光信号； One of the two input light sources is the first variable A, and the other is the first light signal whose light intensity is equal to the light intensity corresponding to logic 1;

所述 A有光强时，对应的光强为 I, I对应逻辑 1 ; 所述 A无光强时，对应的光强为 0, 对应逻辑 0; When the A has light intensity, the corresponding light intensity is I, and I corresponds to logic 1; when the A has no light intensity, the corresponding light intensity is 0, which corresponds to logic 0;

所述 A连接所述光控光开关的控制端； The A is connected to the control end of the light-controlled light switch;

所述第一光信号连接所述光控光开关的输入端； The first optical signal is connected to the input end of the light-controlled light switch;

所述光控光开关的输出端为该非门的输出端。 The output terminal of the light-controlled optical switch is the output terminal of the NOT gate.