CN106199828A - Ultrafast microwave leads the full light trigger of Sagnac ring - Google Patents
Ultrafast microwave leads the full light trigger of Sagnac ring Download PDFInfo
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- CN106199828A CN106199828A CN201610597305.4A CN201610597305A CN106199828A CN 106199828 A CN106199828 A CN 106199828A CN 201610597305 A CN201610597305 A CN 201610597305A CN 106199828 A CN106199828 A CN 106199828A
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- bonder
- polarization
- light pulse
- sagnac ring
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12004—Combinations of two or more optical elements
Abstract
The invention provides a kind of ultrafast microwave and lead the full light trigger of Sagnac ring, including waveguide Sagnac ring, it is respectively equipped with hollow-core photonic crystal fiber on described waveguide Sagnac ring, doped optical fibre amplifier, polarization beam combiner, bonder and optical circulator, wherein, described optical circulator has two to be respectively the first optical circulator and the second optical circulator, described bonder has two to be respectively the first bonder and the second bonder, described first optical circulator is connected with described first bonder, described second optical circulator is connected with described second bonder, described first bonder, second bonder two ends with described hollow-core photonic crystal fiber respectively are connected, described polarization beam combiner has two to be respectively the first polarization beam combiner and the second polarization beam combiner.The invention has the beneficial effects as follows: volume is little, it is easy to integrated, transfer rate is high, and the bit error rate is little.
Description
Technical field
The present invention relates to light trigger, particularly relate to a kind of ultrafast microwave and lead the full light trigger of Sagnac ring.
Background technology
Light trigger is the optical logic device with memory function, is one of the basic technology that processes of digital optical signal, also
Being one of the key technology of all-optical packet switching net, as most basic all-optical signal processors part, full light trigger is in data
Packet Switching Node, full light shift register and all-optical bit DBMS buffer have been applied.
Huawei delivers " extremely letter network " results new technology in ECOC 2015, causes people in the industry's extensive concern.This technology profit
Metropolitan area 100G transmission, and breakthrough the 80km transmission achieving unicast 112Gb/s speed is achieved with lower cost.Therefore,
The core devices light memory storage devices of future optical networks high speed exchange is to realize the base of Ultrahigh capacity Optical Fiber Communication Systems application
Essentiality.
Up to now, numerous Chinese scholars have carried out research and have achieved some achievements full light trigger.Nineteen ninety-five,
H.Kawaguchi et al. proposes to use Vcsel (VCSEL) to realize trigger, and this trigger is to ring
Border is more sensitive, and the maintenance properties of trigger is wayward, can cascade poor；Hispanic F.Ramos et al. uses single
MZI-SOA realizes Mach-Zehnder interferometer (MZI-SOA) structure assisted with SOA, the simple in construction of this trigger, response time
It is less than, but output state alternative in light intensity is bad, be not easy to integrated cascade；To Korea S Yong Deok Jeong in 2006
Deng scholar propose use two coupling Fabry-Perot (FP-LD) laser instrument to realize light Trigger Function, light in the program
The volume of fine grating is little, it is easy to integrated, and the state of trigger keeps easily, and cascade is good, but flip-flop states is easily by temperature
Impact；Light trigger based on Terahertz asymmetrical optical demultiplexer (TOAD), uses active device semiconductor optical amplifier
Realize the gain of light pulse, due to the discordance of wavelength so that the cascade of trigger is poor, and noise figure is of a relatively high, band
Wide utilization rate is bad；Multi-mode interference-type bistable laser diode (MMI-BLDs), response time is fast, but is difficult to trigger, mutually
Scolding property is bad；The full light trigger of 2 D photon crystal (2-D PhC), volume is little, it is easy to integrated, it can be difficult to accurately control incidence
The phase contrast of signal beams, needs higher input power, and energy consumption is big.
Although trigger is of a great variety, but the part that all comes with some shortcomings causes value the highest, and in optic communication
In, all-optical signal processing relate to signal multiplexing, exchange, regenerate, synchronize, store, many operations such as calculating, be at light
Really having applied in network, all-optical signal processors part must possess following several feature:
A () can process high speed signal, and simple in construction.
B () power consumption is little, should be as far as possible less than the energy expenditure of electrical part.
C () is easy to integrated.
D () can play above-mentioned advantage in application.
We have seen that, all-optical signal processing technology has been achieved for significant progress, while it is true, these devices are caught up with and stated
4 requirement also have certain gap, at optical communication field, all-optical signal processing technology to replace Electric signal processing device completely,
The longest stretch is also had to walk.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of ultrafast microwave and lead the triggering of Sagnac ring full light
Device.
The invention provides a kind of ultrafast microwave and lead the full light trigger of Sagnac ring, including waveguide Sagnac ring, described ripple
Lead and on Sagnac ring, be respectively equipped with hollow-core photonic crystal fiber, doped optical fibre amplifier, polarization beam combiner, bonder and light annular
Device, wherein, described optical circulator has two to be respectively the first optical circulator and the second optical circulator, and described bonder has two points
Not being the first bonder and the second bonder, described first optical circulator is connected with described first bonder, described second ring of light
Shape device is connected with described second bonder, described first bonder, the second bonder respectively with described hollow-core photonic crystal fiber
Two ends connect, described polarization beam combiner have two be respectively the first polarization beam combiner and the second polarization beam combiners, described first
Polarization beam combiner, the second polarization beam combiner two ends with described hollow-core photonic crystal fiber respectively are connected, the first bundle light pulse, the
Two bundle light pulses are respectively input signal, and the first bundle light pulse is divided into suitable from input port IP1 input through the first bonder
Hour hands light pulse, the second bundle light pulse is divided into light pulse counterclockwise from input port IP2 input through the second bonder, and first
Beam control signal light pulse from controlling port CP1 through the first polarization beam combiner to one end of hollow-core photonic crystal fiber, the
Two beam control signal light pulses are from controlling the port CP2 other end through the second polarization beam combiner to hollow-core photonic crystal fiber
In, after the first beam control signal light pulse and light pulse generation Cross-phase Modulation clockwise, loop is in the first bonder, and
Send out with light pulse counterclockwise through shaping pulse to output port OP1, the second beam control signal light pulse from the first optical circulator
After raw Cross-phase Modulation, loop is in the second bonder, and from the second optical circulator through shaping pulse to output port OP2.
As a further improvement on the present invention, the control pulse rear end of the first polarization beam combiner connects has the first polarization to rotate
Device, the first beam control signal light pulse through the first polarization rotator obtain with the first bundle light pulse wavelength is identical and cross-polarization
The first control signal.
As a further improvement on the present invention, the control pulse rear end of the second polarization beam combiner connects has the second polarization to rotate
Device, the second beam control signal light pulse through the second polarization rotator obtain with the second bundle light pulse wavelength is identical and cross-polarization
The second control signal.
As a further improvement on the present invention, the input of described first polarization rotator connects has the first doped fiber to put
Big device, the input of described second polarization rotator connects the second doped optical fibre amplifier, and described control port CP1 is with described
First doped optical fibre amplifier connects, and described control port CP2 is connected with described second doped optical fibre amplifier.
As a further improvement on the present invention, described hollow-core photonic crystal fiber is fiber optic loop.
As a further improvement on the present invention, the two ends of described hollow-core photonic crystal fiber are connected to the first polarization and divide
Bundle device and the second polarization beam apparatus.
As a further improvement on the present invention, described waveguide Sagnac ring is three-decker, including 235 nanometer thickness on upper strata
Monocrystal silicon, 3 microns of thick silicon dioxide cushions in intermediate layer and 525 microns of thick silicon substrates of lower floor.
The invention has the beneficial effects as follows: volume is little, it is easy to integrated, transfer rate is high, and the bit error rate is little, is suitable for large-scale integrated
Light path.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that a kind of ultrafast microwave of the present invention leads the full light trigger of Sagnac ring.
Fig. 2 is the stratiform signal that a kind of ultrafast microwave of the present invention leads the waveguide Sagnac ring of the full light trigger of Sagnac ring
Figure.
Fig. 3 is the modulate expression of waveguide Sagnac switch.
Fig. 4 is embodiment one schematic diagram of d type flip flop.
Fig. 5 is embodiment two schematic diagram of d type flip flop.
Fig. 6 is the schematic diagram of R-S trigger.
Fig. 7 is the schematic diagram of J-K flip flop.
Detailed description of the invention
The present invention is further described for explanation and detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of ultrafast microwave leads the full light trigger of Sagnac ring, including waveguide Sagnac ring, described waveguide
Hollow-core photonic crystal fiber 3 (being called for short HC-PCF), doped optical fibre amplifier, polarization beam combiner (letter it is respectively equipped with on Sagnac ring
Claim PBC), bonder (be called for short 3dB C) and optical circulator (being called for short OC), wherein, described optical circulator has two respectively first
Optical circulator 11 and the second optical circulator 12, described bonder has two to be respectively the first bonder 21 and the second bonder 22,
Described first optical circulator 11 is connected with described first bonder 21, described second optical circulator 12 and described second bonder 22
Connecting, described first bonder the 21, second bonder 22 two ends with described hollow-core photonic crystal fiber 3 respectively are connected, described
Polarization beam combiner has two to be respectively the first polarization beam combiner 31 and the second polarization beam combiner 32, described first polarization beam combiner
31, the second polarization beam combiner 32 two ends with described hollow-core photonic crystal fiber 3 respectively are connected.
The first polarization rotator 51 is had (to be called for short as it is shown in figure 1, the control pulse rear end of the first polarization beam combiner 41 connects
PR), the first beam control signal light pulse obtains identical and orthogonal with the first bundle light pulse wavelength through the first polarization rotator 51
First control signal of polarization.
The second polarization rotator 52 is had (to be called for short as it is shown in figure 1, the control pulse rear end of the second polarization beam combiner 42 connects
PR), the second beam control signal light pulse obtains identical and orthogonal with the second bundle light pulse wavelength through the second polarization rotator 52
Second control signal of polarization.
The first doped optical fibre amplifier 71 is had (to be called for short as it is shown in figure 1, the input of described first polarization rotator 51 connects
EDFA), the input of described second polarization rotator 52 connects the second doped optical fibre amplifier 72 (being called for short EDFA), described control
Port CP1 processed is connected with described first doped optical fibre amplifier 71, and described control port CP2 amplifies with described second doped fiber
Device 72 connects.
As it is shown in figure 1, described hollow-core photonic crystal fiber 3 is fiber optic loop.
(it is called for short as it is shown in figure 1, the two ends of described hollow-core photonic crystal fiber 3 are connected to the first polarization beam apparatus 61
PBS) and the second polarization beam apparatus 62 (being called for short PBS).
As it is shown in figure 1, first bundle light pulse, second bundle light pulse be respectively input signal, first bundle light pulse from input
Port IP 1 inputs and is divided into light pulse clockwise (CW) through the first bonder 21, and the second bundle light pulse is defeated from input port IP2
Entering and be divided into light pulse counterclockwise (CCW) through the second bonder 22, the first beam control signal light pulse is from controlling port CP1 first
After through first doped optical fibre amplifier the 71, first polarization rotator the 51, first polarization beam combiner 41 to hollow photon crystal light
In one end of fine 3, the second beam control signal light pulse from control port CP2 successively through the second doped optical fibre amplifier 72, the
Two polarization rotator the 52, second polarization beam combiners 42 in the other end of hollow-core photonic crystal fiber 3, the first beam control signal light
Pulse and light pulse clockwise (CW) occur Cross-phase Modulation (XPM, Cross-phase Modulation) loop afterwards to the
In one bonder 21, and from the first optical circulator 11 through shaping pulse to output port OP1, the second beam control signal light pulse
With light pulse counterclockwise (CCW) occur after Cross-phase Modulation loop in the second bonder 22, and from the second optical circulator 12
Through shaping pulse to output port OP2.
As in figure 2 it is shown, described waveguide Sagnac ring is three-decker, including the monocrystal silicon of 235 nanometer thickness, the centre on upper strata
3 microns of thick silicon dioxide cushions of layer and 525 microns of thick silicon substrates of lower floor.Etch bonder, polarization control thereon
Device processed and photonic crystal fiber etc., the outside access device such as optical circulator and image intensifer.Employing HC-PCF is ring, luminous energy
The heart in a fiber in quantity set, airport diameter d is 110nm, and pitch of holes is 200nm, air filling fraction d/=0.55 > 0.406, light
Transmitting within being limited in central hollow core, there are some researches show, this PCF can transmit the luminous energy of more than 99%, and spatial light decays
Extremely low, optical fiber attenuation only has the 1/2～1/4 of standard fiber.
According to waveguide Sagnac on-off principle and characteristic, and have devised D type, R-S type, J-K type and toggle flip-flop, table 1
List corresponding property list, modulate expression such as Fig. 3 to Fig. 7.
The basic binary trigger property list of table 1
In Fig. 4, IP1=1, CP1=1, OP2=Qn+1=1, IP1=0, CP1=1, OP2=Qn+1=0, this is that D type touches
Send out " holding " operation of device.In Fig. 5, IP1=IP2=0, CP1=CP2=1, Qn+1=0, this is the reset of R-S D-flip flop
Operation；IP1=1, IP2=0, CP1=1, CP2=0, Qn+1=1, this is the set operation for R-S D-flip flop；CP1=1,
If Last status Qn=1, Qn+1=1, if Last status Qn=0, Qn+1=0, this is that R-S D-flip flop " keeps " behaviour
Making, S=1, R=1 are forbidden, and all input conditions of R-S D-flip flop can with characteristic equation Qn+1=S+`RQn (about
Bundle condition SR=0) represent.In Fig. 6, J and K is to be separately input in two logical AND gates being made up of polarization switch S1 and S2,
Inputting in S and R with operation output with two-way delay line feedback, J-K D-flip flop solves in R-S D-flip flop to be forbidden
The situation of " S=1, R=1 " occurs；In Fig. 7, work as T=0, i.e. J=K=0, understand Qn+1=Qn from the characteristic of J-K D-flip flop,
This is that toggle flip-flop " keeps " function, works as T=1, i.e. J=K=1, Qn+1=this be that toggle flip-flop " overturns " function.
The ultrafast microwave of one that the present invention provides leads the full light trigger of Sagnac ring, decreases the noise using SOA to bring
Greatly, the shortcoming such as system mode is unstable, use the hollow-core photonic crystal fiber (HC-PCF) of high non-linearity make system have than with
Toward less input power, lower power consumption, transfer rate 100Gb/s.This full light trigger stable performance, power consumption is little, transmission
Speed is up to 100Gb/s, and input power is 0.05mw, response time in ps magnitude, volume is little be easy to integrated, at large-scale integrated
Cascade light path has great potential, for advancing all-optical signal processing technology and all-optical packet switching, All-optical routing, complete
The development in the fields such as optical oomputing, has important meaning.
The ultrafast microwave of one that the present invention provides is led the full light trigger of Sagnac ring and is had the advantage that
1, using the novel waveguide Sagnac structure of silicon materials, design D, R-S, J-K and T-shaped full light trigger, volume is little,
Being easily integrated, transfer rate 100Gb/s, the bit error rate is little, is suitable for large-scale integrated light path.
2, the shortcomings such as the noise using SOA to bring is big, system mode is unstable are decreased.
3, HC-PCF is used to make system input power little, low in energy consumption, system stability.
4, this waveguide Sagnac ring full light trigger volume is little, power low (uw), is lost little, and response time is fast (ps), passes
Defeated speed is high (100Gb/s), the bit error rate little (10-9), has great potential in large-scale integrated cascade light path.
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert
Being embodied as of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of present inventive concept, it is also possible to make some simple deduction or replace, all should be considered as belonging to the present invention's
Protection domain.
Claims (7)
1. a ultrafast microwave leads the full light trigger of Sagnac ring, it is characterised in that: include waveguide Sagnac ring, described waveguide
Hollow-core photonic crystal fiber, polarization beam combiner, bonder and optical circulator, wherein, the described ring of light it is respectively equipped with on Sagnac ring
Shape device have two be respectively the first optical circulator and the second optical circulators, described bonder have two be respectively the first bonders and
Second bonder, described first optical circulator is connected with described first bonder, described second optical circulator and described second coupling
Clutch connects, and described first bonder, the second bonder two ends with described hollow-core photonic crystal fiber respectively are connected, described partially
The bundling device that shakes has two to be respectively the first polarization beam combiner and the second polarization beam combiners, described first polarization beam combiner, second inclined
The bundling device two ends respectively with described hollow-core photonic crystal fiber that shake are connected, and the first bundle light pulse, the second bundle light pulse are respectively
Input signal, the first bundle light pulse is divided into light pulse clockwise from input port IP1 input through the first bonder, and second
Bundle light pulse is divided into light pulse counterclockwise, the first beam control signal light arteries and veins from input port IP2 input through the second bonder
Rush from control port CP1 through the first polarization beam combiner to one end of hollow-core photonic crystal fiber, the second beam control signal light
Pulse is from control port CP2 through the second polarization beam combiner to the other end of hollow-core photonic crystal fiber, and the first beam control system is believed
After number light pulse and light pulse generation Cross-phase Modulation clockwise, loop is in the first bonder, and from the first optical circulator warp
After extra pulse is shaped into output port OP1, the second beam control signal light pulse and light pulse generation Cross-phase Modulation counterclockwise
Loop is in the second bonder, and from the second optical circulator through shaping pulse to output port OP2.
Ultrafast microwave the most according to claim 1 leads the full light trigger of Sagnac ring, it is characterised in that: the first polarization coupling
The control pulse rear end of device connects has the first polarization rotator, the first beam control signal light pulse to obtain through the first polarization rotator
To with the first bundle light pulse wavelength is identical and the first control signal of cross-polarization.
Ultrafast microwave the most according to claim 2 leads the full light trigger of Sagnac ring, it is characterised in that: the second polarization coupling
The control pulse rear end of device connects has the second polarization rotator, the second beam control signal light pulse to obtain through the second polarization rotator
To with the second bundle light pulse wavelength is identical and the second control signal of cross-polarization.
Ultrafast microwave the most according to claim 3 leads the full light trigger of Sagnac ring, it is characterised in that: described first polarization
The input of rotator connects the first doped optical fibre amplifier, and the input of described second polarization rotator connects has second to mix
Veiling glare fiber amplifier, described control port CP1 is connected with described first doped optical fibre amplifier, described control port CP2 and institute
State the second doped optical fibre amplifier to connect.
Ultrafast microwave the most according to claim 1 leads the full light trigger of Sagnac ring, it is characterised in that: described air-core photonic
Crystal optical fibre is fiber optic loop.
Ultrafast microwave the most according to claim 1 leads the full light trigger of Sagnac ring, it is characterised in that: described air-core photonic
The two ends of crystal optical fibre are connected to the first polarization beam apparatus and the second polarization beam apparatus.
Ultrafast microwave the most according to claim 1 leads the full light trigger of Sagnac ring, it is characterised in that: described waveguide
Sagnac ring is three-decker, including the monocrystal silicon of 235 nanometer thickness, 3 microns of thick silicon dioxide bufferings in intermediate layer on upper strata
Layer and 525 microns of thick silicon substrates of lower floor.
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| CN201610597305.4A CN106199828B (en) | 2016-07-26 | 2016-07-26 | Ultrafast microwave leads the full light trigger of Sagnac ring |
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| CN201610597305.4A CN106199828B (en) | 2016-07-26 | 2016-07-26 | Ultrafast microwave leads the full light trigger of Sagnac ring |
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| EP1271114A2 (en) * | 2001-06-29 | 2003-01-02 | Fujitsu Limited | Method and device for measuring the waveform of an optical signal |
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| CN203982048U (en) * | 2014-06-26 | 2014-12-03 | 杭州电子科技大学 | The Sagnac interferometer all-optical logic device of biased amplifier in a kind of ring |
| CN104391418A (en) * | 2014-11-13 | 2015-03-04 | 杭州电子科技大学 | Sagnac interferometer all-optical logic device based on erbium-doped fiber coupler |
| CN104485928A (en) * | 2014-12-19 | 2015-04-01 | 欧阳征标 | Photonic crystal all-optical D trigger |
| CN105629625A (en) * | 2016-03-02 | 2016-06-01 | 北方工业大学 | Dual microring resonant cavity differential delay based all-optical logic exclusive OR gate |
| WO2016095845A1 (en) * | 2014-12-19 | 2016-06-23 | 深圳大学 | Photonic crystal all-optical anti-interference self-locking trigger switch |
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2016
- 2016-07-26 CN CN201610597305.4A patent/CN106199828B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1271114A2 (en) * | 2001-06-29 | 2003-01-02 | Fujitsu Limited | Method and device for measuring the waveform of an optical signal |
| US6952172B1 (en) * | 2004-03-19 | 2005-10-04 | Lucent Technologies Inc. | All-optical linear feedback shift register |
| CN103969912A (en) * | 2014-05-05 | 2014-08-06 | 杭州电子科技大学 | Sagnac ring full-optical logic device based on electro-optical modulation |
| CN203982048U (en) * | 2014-06-26 | 2014-12-03 | 杭州电子科技大学 | The Sagnac interferometer all-optical logic device of biased amplifier in a kind of ring |
| CN104391418A (en) * | 2014-11-13 | 2015-03-04 | 杭州电子科技大学 | Sagnac interferometer all-optical logic device based on erbium-doped fiber coupler |
| CN104485928A (en) * | 2014-12-19 | 2015-04-01 | 欧阳征标 | Photonic crystal all-optical D trigger |
| WO2016095845A1 (en) * | 2014-12-19 | 2016-06-23 | 深圳大学 | Photonic crystal all-optical anti-interference self-locking trigger switch |
| CN105629625A (en) * | 2016-03-02 | 2016-06-01 | 北方工业大学 | Dual microring resonant cavity differential delay based all-optical logic exclusive OR gate |
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