WO2021232494A1 - Small free-space wavelength division multiplexer - Google Patents
Small free-space wavelength division multiplexer Download PDFInfo
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- WO2021232494A1 WO2021232494A1 PCT/CN2020/094164 CN2020094164W WO2021232494A1 WO 2021232494 A1 WO2021232494 A1 WO 2021232494A1 CN 2020094164 W CN2020094164 W CN 2020094164W WO 2021232494 A1 WO2021232494 A1 WO 2021232494A1
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- 239000013307 optical fiber Substances 0.000 claims abstract description 98
- 239000000758 substrate Substances 0.000 claims abstract description 68
- 239000011521 glass Substances 0.000 claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims description 28
- 230000003287 optical effect Effects 0.000 claims description 23
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 239000000835 fiber Substances 0.000 claims description 15
- 238000012937 correction Methods 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 2
- 230000003667 anti-reflective effect Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 13
- 239000010408 film Substances 0.000 description 11
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 239000003292 glue Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007526 fusion splicing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
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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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
Definitions
- Wavelength division multiplexing technology makes full use of the advantages of transmitting optical signals of different wavelengths in a single optical fiber, and increases the information transmission capacity of a single optical fiber by several to tens of times, and has become the preferred technology for the expansion of optical fiber transmission systems.
- Arrayed waveguide grating technology which is widely used in wavelength division multiplexing systems, uses waveguides of different lengths to construct the gradient phase shift of light waves, and make them interfere at the exit end and couple them to the corresponding optical fibers to realize the multiplexing and demultiplexing of light waves.
- the arrayed waveguide grating technology still has the disadvantages of high insertion loss and high crosstalk.
- the cascading of multiple three-port devices is another way to achieve wavelength division multiplexing/demultiplexing. Although it has advantages in crosstalk, the three-port device cascading solution still has disk fiber technology that limits device miniaturization and multiple optical fibers. Welding has the disadvantage of excessive insertion loss.
- the Z-Block, the lens array and the optical fiber array are all relatively fixed on a substrate.
- a reflective film is plated on the other side of the Z-Block.
- the several filters are fixed side by side on the end surface of the pentagonal substrate close to the lens array, and the antireflection glass sheet is fixed on the inclined surface of the pentagonal substrate close to the lens array.
- FIG. 6 is a schematic top view of the structure of the Z-block in Embodiment 1 of the present invention.
- Fig. 12 is a three-dimensional schematic diagram of the circular light-correcting wedge angle sheet in embodiment 2 of the present invention.
- Embodiment 3 of the present invention is a schematic side view of the structure of Embodiment 3 of the present invention.
- Embodiment 3 of the present invention is a schematic top view of the structure of Embodiment 3 of the present invention.
- FIG. 21 is a schematic top view of the structure of Z-Block in Embodiment 3 of the present invention.
- the Z-Block 10, the lens array 11, and the optical fiber array 14 are all integrated on the same substrate 15, wherein the incident beam and the outgoing beam are all input or output on the same side of the optical fiber array 14.
- Figures 12 to 14 are respectively a three-dimensional schematic view, a front view schematic view and a side view schematic view of the cylindrical light-correcting wedge angle sheet.
- the cylindrical light-correcting wedge angle plate placed on the supporting groove 16 can be rotated to correct the beam of any spatial angle.
- the optical fiber array in this embodiment is a 1 ⁇ 5 array, and includes a lower substrate 247 with a V-shaped groove, five optical fibers 241-245, and an upper substrate 246. Among them, the optical fiber 245 is used to transmit the incident light beam, and the optical fibers 241, 242, 243, and 244 are used to transmit the outgoing light beam. It should be pointed out that the small free-space wavelength division multiplexer of the present invention can be used as a wavelength division multiplexer (Demux) or a wavelength division multiplexer (Mux).
- the four beams emitted from the Z-Block 30 need to be added to the light-correcting wedges 37, 38, 39, and 310 to correct their spatial angles.
- the correction wedge angle plates 37, 38, 39, and 310 are arranged between the Z-Block 30 and the lens array, and the corrected light beams are coupled to the optical fiber array 34 through the lens array 31 and output.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
A small free-space wavelength division multiplexer, comprising a Z-Block (10), a lens array (11), and an optical fiber array (14) which are sequentially arranged. The Z-Block (10) comprises a parallelogram substrate (101), a right angle prism (107), a plurality of filters (102, 103, 104, 105), and an anti-reflective glass sheet (106). The plurality of filters (102, 103, 104, 105) and the anti-reflective glass sheet (106) are sequentially fixed, side by side, onto an end surface of the parallelogram substrate (101) close to the lens array (11). The right angle prism (107) is fixed onto an end surface of the parallelogram substrate (101) distant from the lens array (11). When being incident from one optical fiber (145) in the optical fiber array (14) to the lens array (11), an incident beam is collimated and incident to the Z-Block (10), is refracted into the Z-Block (10) by means of the anti-reflective glass sheet (106) on the Z-Block (10), and then is reflected back to the filters (102, 103, 104, 105) by means of the right angle prism (107) arranged on the other side. Beams having different wavelengths are sequentially output to the lens array (11) by means of the plurality of filters (102, 103, 104, 105), and are coupled and output into the optical fiber array (14). The small free-space wavelength division multiplexer has the advantages of being small in size, simple in structure, flexible in assembly, simple in debugging, and easy to expand.
Description
本发明涉及光通讯器件领域，具体涉及一种小型自由空间波分复用器。The invention relates to the field of optical communication devices, in particular to a small free space wavelength division multiplexer.
随着物质生活水平的日益提高，人们对信息消费的需求也不断增长。为了提供高信息容量的服务，通信运营商对光纤通信***的传输容量提出了越来越高的要求。波分复用技术，充分利用可在单根光纤中传播不同波长光信号的优势，将单根光纤的信息传输容量提高了数倍至数十倍，成为了光纤传输***扩容的优选技术。With the increasing improvement of material living standards, people's demand for information consumption is also increasing. In order to provide services with high information capacity, communication operators have put forward higher and higher requirements for the transmission capacity of optical fiber communication systems. Wavelength division multiplexing technology makes full use of the advantages of transmitting optical signals of different wavelengths in a single optical fiber, and increases the information transmission capacity of a single optical fiber by several to tens of times, and has become the preferred technology for the expansion of optical fiber transmission systems.
广泛运用于波分复用***的阵列波导光栅技术，利用不同长度的波导构建光波的梯度相移，并使其在出射端干涉并耦合到相应光纤中，以实现光波的复用和解复用。尽管兼具尺寸小、高通道数和易量产的优势，阵列波导光栅技术仍存在高插损和高串扰的缺点。多个三端口器件级联是实现波分复用/解复用的另一种方式，尽管在串扰上具有优势，三端口器件级联方案仍存在盘纤工艺限制器件小型化和由光纤多次熔接造成插损过大的缺点。Arrayed waveguide grating technology, which is widely used in wavelength division multiplexing systems, uses waveguides of different lengths to construct the gradient phase shift of light waves, and make them interfere at the exit end and couple them to the corresponding optical fibers to realize the multiplexing and demultiplexing of light waves. Despite the advantages of small size, high channel count and easy mass production, the arrayed waveguide grating technology still has the disadvantages of high insertion loss and high crosstalk. The cascading of multiple three-port devices is another way to achieve wavelength division multiplexing/demultiplexing. Although it has advantages in crosstalk, the three-port device cascading solution still has disk fiber technology that limits device miniaturization and multiple optical fibers. Welding has the disadvantage of excessive insertion loss.
基于自由空间薄膜滤波器的波分复用器因其具有性能稳定和***损耗低的优点，在现代光网络中得到了广泛应用。与三端口器件级联方案相比，基于自由空间薄膜滤波器的波分复用技术，在节省光纤熔接步骤的同时，也降低了***损耗。典型的小型自由空间波分复用器中，入射光和出射光都通过相应的光纤准直器进行准直和耦合。然而，受限于光纤准直器的尺寸，自由空间波分复用器的尺寸难以继续减小。Wavelength division multiplexers based on free-space thin-film filters have been widely used in modern optical networks because of their stable performance and low insertion loss. Compared with the three-port device cascade solution, the wavelength division multiplexing technology based on the free-space thin-film filter saves the optical fiber fusion splicing step and also reduces the insertion loss. In a typical small free space wavelength division multiplexer, the incident light and the outgoing light are collimated and coupled through the corresponding fiber collimator. However, limited by the size of the fiber collimator, the size of the free-space wavelength division multiplexer is difficult to continue to reduce.
发明内容Summary of the invention
针对现有技术的情况，本发明的目的在于提供一种结构紧凑、拓展调试便利且效率高的小型波分复用器，以解决自由空间波分复用器进一步小型化的问题。In view of the existing technology, the purpose of the present invention is to provide a small wavelength division multiplexer with compact structure, convenient expansion and debugging, and high efficiency, so as to solve the problem of further miniaturization of free space wavelength division multiplexers.
为了实现上述的技术目的，本发明所采用的技术方案为：In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:
一种小型自由空间波分复用器，其包括：A small free space wavelength division multiplexer, which includes:
Z-Block，其一侧面为光信号传输面且形成有相互间隔的第一传输面和第二传输面，所述的第 一传输面包括若干并排设置的滤波片，且若干滤波片具有不同的工作波长，所述的第二传输面包括增透光学片；Z-Block, one side of which is an optical signal transmission surface and is formed with a first transmission surface and a second transmission surface spaced apart from each other. The first transmission surface includes a plurality of filters arranged side by side, and the plurality of filters have different Working wavelength, the second transmission surface includes an anti-reflection optical sheet;
透镜阵列，与Z-Block的第一传输面和第二传输面相对，且具有与增透光学片和若干滤波片一一对应并相对的透镜单元；The lens array is opposite to the first transmission surface and the second transmission surface of the Z-Block, and has a lens unit corresponding to and opposite to the antireflection optical sheet and a plurality of filters in a one-to-one correspondence;
光纤阵列，与透镜阵列相对，且具有若干与透镜阵列的透镜单元一一对应的子光纤。The optical fiber array is opposite to the lens array and has a number of sub-fibers corresponding to the lens units of the lens array one-to-one.
作为一种可能的实施方式，进一步，所述的透镜阵列为1×5透镜阵列，其分别与滤波片和增透玻璃片一一对应，并用于对入射光束的准直以及对出射光束的聚焦耦合；所述的滤波片对应为四片，所述的增透光学片为一片。As a possible implementation, further, the lens array is a 1×5 lens array, which corresponds to the filter and the anti-reflection glass respectively, and is used to collimate the incident light beam and focus the outgoing light beam. Coupling; the filter corresponds to four pieces, and the antireflection optical sheet is one piece.
作为一种较优的选择实施方式，优选的，所述的光纤阵列为1×5光纤阵列，其包括一侧具有V型槽的下基板、上基板和五根传输光纤，所述的上基板固定在下基板的上端面，且上基板的一侧面与透镜阵列相对，五根传输光纤并排连接在下基板的V型槽内且与上基板的另一侧面相对，五根传输光纤的其中四根与四片滤波片对应，余下一根传输光纤与增透光学片相对应；其具体可以是，五根传输光纤形成的5通道光纤阵列的1个通道用于入射光束传输，剩余4个通道用于出射光束传输；或4个通道用于入射光束传输，剩余1个通道用于出射光束传输。As a preferred embodiment, preferably, the optical fiber array is a 1×5 optical fiber array, which includes a lower substrate with a V-shaped groove on one side, an upper substrate, and five transmission fibers. The upper substrate It is fixed on the upper end surface of the lower substrate, and one side of the upper substrate is opposite to the lens array. The five transmission fibers are connected side by side in the V-shaped groove of the lower substrate and opposite to the other side of the upper substrate. Four of the five transmission fibers are connected to the Four filters correspond, and the remaining transmission fiber corresponds to the antireflection optical sheet; specifically, one channel of the 5-channel optical fiber array formed by five transmission fibers is used for incident beam transmission, and the remaining 4 channels are used for Outgoing beam transmission; or 4 channels are used for incident beam transmission, and the remaining 1 channel is used for outgoing beam transmission.
作为一种可能的实施方式，进一步，所述的Z-Block、透镜阵列和光纤阵列均相对固定在一基片上。As a possible implementation, further, the Z-Block, the lens array and the optical fiber array are all relatively fixed on a substrate.
作为一种较优的选择实施方式，优选的，所述Z-Block的另一侧面上镀设有反射膜。As a preferred embodiment, preferably, a reflective film is plated on the other side of the Z-Block.
作为一种较优的选择实施方式，优选的，所述的Z-Block与透镜阵列之间还设有与若干滤波片一一对应的校光楔角片，校光楔角片下部设设有将其固定在基片上的支撑件，校光楔角片用于所述Z-block的输出光束平行度达不到预定要求时对输出光束的方向进行校正；所述的透镜阵列和光纤阵列之间还设有楔角块和垫片，所述的透镜阵列、楔角块、垫片和光纤阵列依序固定连接为一体；所述的垫片可以为打孔玻璃片。As a better alternative implementation, preferably, there is a light-correcting wedge sheet corresponding to a number of filters one-to-one between the Z-Block and the lens array, and the lower part of the light-correcting wedge sheet is provided with It is fixed on the support member on the substrate, the optical correction wedge is used to correct the direction of the output beam when the output beam parallelism of the Z-block does not meet the predetermined requirements; the lens array and the optical fiber array A wedge block and a spacer are also arranged in the space, and the lens array, the wedge block, the spacer and the optical fiber array are sequentially fixedly connected into one body; the spacer can be a perforated glass sheet.
作为一种更优的选择实施方式，优选的，所述的校光楔角片为圆柱形校光楔角片或方形校光楔角片。As a more preferable alternative implementation, preferably, the said light-correcting wedge sheet is a cylindrical light-correcting wedge sheet or a square light-correcting wedge sheet.
作为Z-Block的一种较优的选择实施方式，优选的，所述的Z-Block包括平行基板、贴合在平行基板一侧面的若干滤波片和一片增透玻璃片，以及斜面固定在平行基板另一侧面的直角棱镜；即，所述的若干滤波片和一片增透玻璃依序并排固定在平行基板接近于透镜阵列的端面上，所述的直角棱镜固定在平行基板远离透镜阵列的端面上。As a preferred implementation of Z-Block, preferably, the Z-Block includes a parallel substrate, a number of filters attached to one side of the parallel substrate, and a piece of antireflection glass, and the slope is fixed in parallel The right-angle prism on the other side of the substrate; that is, the several filters and a piece of antireflection glass are fixed side by side on the end surface of the parallel substrate close to the lens array, and the right-angle prism is fixed on the end surface of the parallel substrate away from the lens array. superior.
作为Z-Block的一种较优的选择实施方式，优选的，所述的Z-Block包括平行基板、贴合在平行基板一侧面的若干滤波片和一片楔形增透玻璃片；即，所述的若干滤波片和一片楔形增透玻璃依序并排固定在平行基板接近于透镜阵列的端面上。As a preferred implementation of Z-Block, preferably, the Z-Block includes a parallel substrate, a number of filters attached to one side of the parallel substrate, and a wedge-shaped antireflection glass sheet; that is, the A number of filters and a piece of wedge-shaped antireflection glass are fixed side by side on the parallel substrate close to the end surface of the lens array.
作为Z-Block的一种较优的选择实施方式，优选的，所述的Z-Block包括：As a preferred implementation of Z-Block, preferably, the Z-Block includes:
五边形基板，其一侧具有斜面；A pentagonal substrate with a slope on one side;
若干滤波片，间隔布设在五边形基板与斜面同侧的侧面上；Several filters are arranged at intervals on the side surface of the pentagonal base plate on the same side as the inclined plane;
一片平行增透玻璃片，布设在五边形基板的斜面上。A piece of parallel antireflection glass is arranged on the slope of the pentagonal substrate.
即，所述的若干滤波片依序并排固定在五边形基板接近于透镜阵列的端面上，增透玻璃片固定在五边形基板接近于透镜阵列的斜面上。That is, the several filters are fixed side by side on the end surface of the pentagonal substrate close to the lens array, and the antireflection glass sheet is fixed on the inclined surface of the pentagonal substrate close to the lens array.
采用上述的技术方案，本发明与现有技术相比，其具有的有益效果为：本方案通过利用Z-block、透镜阵列以及光纤阵列的结合，将入射光束与出射光束同时集成在同一侧的光纤阵列，结构尺寸较异侧分布的减小了一半。此外，阵列的使用使该方案较光纤准直器的方案具有结构简单、装配灵活、调试简单高效和易于扩展的优点。Using the above technical solution, the present invention has the beneficial effect compared with the prior art: this solution integrates the incident beam and the outgoing beam on the same side at the same time by using the combination of Z-block, lens array and optical fiber array. The size of the optical fiber array is reduced by half compared with the distribution on the opposite side. In addition, the use of the array makes this solution have the advantages of simple structure, flexible assembly, simple and efficient debugging, and easy expansion compared with the fiber collimator solution.
下面结合附图和具体实施方式对本发明方案做进一步的阐述：The solution of the present invention will be further described below in conjunction with the drawings and specific implementations:
图1为本发明实施例1的结构3维示意图；FIG. 1 is a three-dimensional schematic diagram of the structure of Embodiment 1 of the present invention;
图2为本发明实施例1的结构侧视示意图；2 is a schematic side view of the structure of Embodiment 1 of the present invention;
图3为本发明实施例1的结构俯视示意图；3 is a schematic top view of the structure of Embodiment 1 of the present invention;
图4为本发明实施例1的打孔玻璃片的3维示意图；4 is a three-dimensional schematic diagram of the perforated glass sheet according to Embodiment 1 of the present invention;
图5为本发明实施例1的打孔玻璃片的侧视示意图；Fig. 5 is a schematic side view of the perforated glass sheet of embodiment 1 of the present invention;
图6为本发明实施例1中Z-block的结构俯视示意图；6 is a schematic top view of the structure of the Z-block in Embodiment 1 of the present invention;
图7为本发明实施例2的结构3维示意图；FIG. 7 is a three-dimensional schematic diagram of the structure of Embodiment 2 of the present invention;
图8为本发明实施例2的结构侧视示意图；8 is a schematic side view of the structure of Embodiment 2 of the present invention;
图9为本发明实施例2的结构俯视示意图；9 is a schematic top view of the structure of Embodiment 2 of the present invention;
图10为本发明实施例2中校光片支撑槽的3维示意图；10 is a three-dimensional schematic diagram of the supporting groove of the light calibration sheet in embodiment 2 of the present invention;
图11为本发明实施例2中校光片支撑槽的正视示意图；11 is a schematic front view of the supporting groove of the light calibration sheet in Example 2 of the present invention;
图12为本发明实施例2中圆形校光楔角片的3维示意图；Fig. 12 is a three-dimensional schematic diagram of the circular light-correcting wedge angle sheet in embodiment 2 of the present invention;
图13为本发明实施例2中圆形校光楔角片的正视示意图；Fig. 13 is a schematic front view of a circular light-correcting wedge angle sheet in embodiment 2 of the present invention;
图14为本发明实施例2中圆形校光楔角片的侧视示意图；Fig. 14 is a schematic side view of a circular light-correcting wedge angle sheet in embodiment 2 of the present invention;
图15为方形校光楔角片的结构3维示意图；Figure 15 is a three-dimensional schematic diagram of the structure of the square light-correcting wedge-angle sheet;
图16为方形校光楔角片的结构正视示意图；Fig. 16 is a schematic front view of the structure of a square light-correcting wedge angle sheet;
图17为方形校光楔角片的结构侧视示意图；Figure 17 is a schematic side view of the structure of a square light-correcting wedge angle sheet;
图18为本发明实施例3的结构3维示意图；18 is a three-dimensional schematic diagram of the structure of Embodiment 3 of the present invention;
图19为本发明实施例3的结构侧视示意图；19 is a schematic side view of the structure of Embodiment 3 of the present invention;
图20为本发明实施例3的结构俯视示意图；20 is a schematic top view of the structure of Embodiment 3 of the present invention;
图21为本发明实施例3中Z-Block的结构俯视示意图；21 is a schematic top view of the structure of Z-Block in Embodiment 3 of the present invention;
图22为本发明实施例4的结构3维示意图；22 is a three-dimensional schematic diagram of the structure of Embodiment 4 of the present invention;
图23为本发明实施例4的结构侧视示意图；23 is a schematic side view of the structure of Embodiment 4 of the present invention;
图24为本发明实施例4的结构俯视示意图；24 is a schematic top view of the structure of Embodiment 4 of the present invention;
图25为本发明实施例5的结构3维示意图；25 is a three-dimensional schematic diagram of the structure of Embodiment 5 of the present invention;
图26为本发明实施例5的结构侧视示意图；26 is a schematic side view of the structure of Embodiment 5 of the present invention;
图27为本发明实施例5的结构俯视示意图；27 is a schematic top view of the structure of Embodiment 5 of the present invention;
图28为本发明实施例5中Z-Block的结构俯视示意图；28 is a schematic top view of the structure of Z-Block in Embodiment 5 of the present invention;
图29为本发明实施例6的结构3维示意图；29 is a three-dimensional schematic diagram of the structure of Embodiment 6 of the present invention;
图30为本发明实施例6的结构侧视示意图；30 is a schematic side view of the structure of Embodiment 6 of the present invention;
图31为本发明实施例6的结构俯视示意图。FIG. 31 is a schematic top view of the structure of Embodiment 6 of the present invention.
实施例1Example 1
如图1至图6之一所示，本实施例结构包括依序设置的Z-Block 10、透镜阵列11、楔角块12、垫片13(可以为图4或图5中所示出的打孔玻璃片)和光纤阵列14；As shown in one of Figures 1 to 6, the structure of this embodiment includes a Z-Block 10, a lens array 11, a wedge block 12, and a spacer 13 (which may be the one shown in Figure 4 or Figure 5) arranged in sequence. Perforated glass sheet) and optical fiber array 14;
所述Z-Block 10包括平行四边形基板(平行基板)101、若干滤波片102、103、104、105和一片增透玻璃片106和一块直角棱镜107。所述的若干滤波片102、103、104、105和一片增透玻璃片106依序并排固定在平行四边形基板101远离透镜阵列11的端面上，直角棱镜107的斜面固定在平行基板101远离滤波片的侧面上；若干滤波片102、103、104、105用于透射特定波长的光束并反射剩余波长的光束。The Z-Block 10 includes a parallelogram substrate (parallel substrate) 101, a number of filters 102, 103, 104, 105, a piece of anti-reflection glass 106, and a right-angle prism 107. The several filters 102, 103, 104, 105 and a piece of antireflection glass 106 are fixed side by side on the end surface of the parallelogram substrate 101 away from the lens array 11, and the slope of the right-angle prism 107 is fixed on the parallel substrate 101 away from the filter. On the side; a number of filters 102, 103, 104, 105 used to transmit light beams of specific wavelengths and reflect light beams of the remaining wavelengths.
其中，入射光束从光纤阵列14的其中一根光纤145入射透镜阵列11，经由透镜阵列11准直并入射Z-Block 10，再经过Z-Block 10上的增透玻璃片106后被另一侧的直角棱镜107反射到滤波片102、103、104、105上(着重结合图6所示，其示出了本实施例的Z-Block的简要光路传播示意图)。滤波片102-105依次将不同波长的光束输出至透镜阵列11，并耦合到光纤阵列14的光纤141、142、143、144输出。Among them, the incident light beam enters the lens array 11 from one of the optical fibers 145 of the optical fiber array 14, collimated by the lens array 11, and enters the Z-Block 10, and then passes through the anti-reflection glass 106 on the Z-Block 10, and is passed to the other side. The right-angle prism 107 is reflected to the filters 102, 103, 104, 105 (focusing on FIG. 6, which shows a brief light path propagation diagram of the Z-Block in this embodiment). The filters 102-105 sequentially output light beams of different wavelengths to the lens array 11, and are coupled to the optical fibers 141, 142, 143, and 144 of the optical fiber array 14 to output.
作为一种连接形式，所述的透镜阵列11、楔角块12、垫片13和光纤阵列14依序粘接在一起，垫片13用于实现耦合处光路无胶。As a connection form, the lens array 11, the wedge block 12, the spacer 13 and the optical fiber array 14 are bonded together in sequence, and the spacer 13 is used to realize the optical path of the coupling without glue.
作为一种另一种可能的实施形式，Z-Block 10、透镜阵列11以及光纤阵列14均集成 在同一个基片15上，其中，入射光束与出射光束均在光纤阵列14的同一侧输入或输出。As another possible implementation form, the Z-Block 10, the lens array 11, and the optical fiber array 14 are all integrated on the same substrate 15. The incident beam and the outgoing beam are both input or on the same side of the optical fiber array 14. Output.
另外，Z-Block 10上粘接的增透玻璃片106用于对Z-Block 10一侧的光束进行间距校正，使得入射光束与出射光束的间距相同。Z-Block 10一侧镀有高反膜，用于反射4个波长的光到滤波片102、103、104、105上。In addition, the anti-reflection glass sheet 106 adhered to the Z-Block 10 is used to correct the distance between the light beams on the side of the Z-Block 10, so that the distance between the incident light beam and the outgoing light beam is the same. Z-Block 10 is plated with a high-reflection film on one side to reflect light of 4 wavelengths to the filters 102, 103, 104, 105.
本实施例的Z-Block 10的输出光束平行度很高，从Z-Block出射的4束不同波长的光束可以以很小的插损耦合到光纤阵列14输出。本实施例图示的透镜阵列11是1x5光纤阵列，实现包括对入射光束的准直以及对出射光束的聚焦耦合。The output beams of the Z-Block 10 in this embodiment have a high degree of parallelism, and the four beams of different wavelengths emitted from the Z-Block can be coupled to the optical fiber array 14 for output with a small insertion loss. The lens array 11 illustrated in this embodiment is a 1x5 optical fiber array, which realizes the collimation of the incident light beam and the focusing and coupling of the outgoing light beam.
本实施例的光纤阵列是1x5阵列，包括带V型槽的下基板147、5根光纤141、142、143、144、145以及上基板146。其中，光纤145用于传输入射光束，光纤141、142、143、144用于传输出射光束。需要指出的是，本发明所述的小型自由空间波分复用器既可以作为波分解复用器(Demux)使用，也可以作为波分复用器(Mux)使用。The optical fiber array of this embodiment is a 1×5 array, and includes a lower substrate 147 with a V-shaped groove, five optical fibers 141, 142, 143, 144, 145, and an upper substrate 146. Among them, the optical fiber 145 is used to transmit the incident light beam, and the optical fibers 141, 142, 143, and 144 are used to transmit the outgoing light beam. It should be pointed out that the small free-space wavelength division multiplexer of the present invention can be used as a wavelength division multiplexer (Demux) or a wavelength division multiplexer (Mux).
实施例2Example 2
如图7至图14之一所示，本实施例结构包括依序设置的Z-Block 10、透镜阵列11、楔角块12、垫片13(可以为与实施例1一致的打孔玻璃片)和光纤阵列14；As shown in one of Figures 7 to 14, the structure of this embodiment includes a Z-Block 10, a lens array 11, a wedge block 12, and a spacer 13 arranged in sequence (it can be a perforated glass sheet consistent with embodiment 1. ) And optical fiber array 14;
其中，所述Z-Block 10包括平行四边形基板101、数个滤波片102、103、104、1055、一片增透玻璃片106和一块直角棱镜107。所述的数个滤波片102、103、104、105和一片增透玻璃片106依序并排固定在平行四边形基板101远离透镜阵列11的端面上。其中，滤波片102-105用于透射特定波长的光束并反射剩余波长的光束。Wherein, the Z-Block 10 includes a parallelogram substrate 101, several filter sheets 102, 103, 104, 1055, a piece of anti-reflection glass sheet 106, and a right-angle prism 107. The several filters 102, 103, 104, 105 and a piece of antireflection glass 106 are fixed side by side on the end surface of the parallelogram substrate 101 away from the lens array 11 in sequence. Among them, the filters 102-105 are used to transmit light beams of specific wavelengths and reflect light beams of remaining wavelengths.
所述的透镜阵列11、楔角块12、垫片13和光纤阵列14依序粘接在一起，垫片13用于实现耦合处光路无胶。The lens array 11, the wedge block 12, the spacer 13 and the optical fiber array 14 are bonded together in sequence, and the spacer 13 is used to realize the optical path of the coupling without glue.
入射光束从光纤阵列14的其中一根光纤145入射透镜阵列11，经由透镜阵列11准直并入射Z-Block 10，再经过Z-Block 10上的增透玻璃片106后被另一侧的直角棱镜107反射到滤波片102、103、104、105上。滤波片102、103、104、105依次将不同波长的光束输出 至透镜阵列11，并耦合到光纤阵列14的光纤141、142、143、144输出。The incident light beam enters the lens array 11 from one of the optical fibers 145 of the optical fiber array 14, collimated by the lens array 11 and enters the Z-Block 10, and then passes through the anti-reflection glass 106 on the Z-Block 10, and is passed at a right angle on the other side. The prism 107 is reflected on the filters 102, 103, 104, 105. The filters 102, 103, 104, and 105 sequentially output light beams of different wavelengths to the lens array 11, and are coupled to the optical fibers 141, 142, 143, and 144 of the optical fiber array 14 to output.
Z-Block 10、透镜阵列11以及光纤阵列14均集成在同一个基片15上，其中，入射光束与出射光束均在光纤阵列14的同一侧输入或输出。The Z-Block 10, the lens array 11, and the optical fiber array 14 are all integrated on the same substrate 15, wherein the incident beam and the outgoing beam are all input or output on the same side of the optical fiber array 14.
其中，Z-Block 10上粘接的增透玻璃片106用于对Z-Block 10一侧的光束进行间距校正，以确保入射光束与出射光束的间距相同。Z-Block 10一侧镀有高反膜，用于反射4个波长的光到滤波片102、103、104、105上。Among them, the anti-reflection glass sheet 106 adhered to the Z-Block 10 is used to correct the distance between the light beams on the side of the Z-Block 10 to ensure that the distance between the incident light beam and the outgoing light beam is the same. Z-Block 10 is plated with a high-reflection film on one side to reflect light of 4 wavelengths to the filters 102, 103, 104, 105.
当Z-Block 10输出光束的平行度不足时，从Z-Block 10出射的4束光束需要加入校光楔角片17、18、19和110来校正其空间角。其中校光楔角片17、18、19和110设于Z-Block10和透镜阵列之间，经过校正的光束通过透镜阵列11耦合至光纤阵列14输出。When the parallelism of the output beams of the Z-Block 10 is insufficient, the 4 beams emitted from the Z-Block 10 need to be added to the light-correcting wedges 17, 18, 19, and 110 to correct their spatial angles. Among them, the light-correcting wedges 17, 18, 19, and 110 are arranged between the Z-Block 10 and the lens array, and the corrected light beam is coupled to the optical fiber array 14 through the lens array 11 and output.
本实施例的透镜阵列11和光纤阵列14同实施例1。The lens array 11 and the optical fiber array 14 of this embodiment are the same as those of the first embodiment.
图10和11分别是圆柱形校光楔角片支撑槽16的3维示意图和正视示意图。10 and 11 are respectively a three-dimensional schematic diagram and a front schematic diagram of the support groove 16 of the cylindrical light-correcting wedge sheet.
图12至图14分别为圆柱形校光楔角片的3维示意图、正视示意图和侧视示意图。置于支撑槽16上的圆柱形校光楔角片经过旋转可以对任意空间角的光束进行校正。Figures 12 to 14 are respectively a three-dimensional schematic view, a front view schematic view and a side view schematic view of the cylindrical light-correcting wedge angle sheet. The cylindrical light-correcting wedge angle plate placed on the supporting groove 16 can be rotated to correct the beam of any spatial angle.
图15至图17分别是方形校光楔角片的结构3维示意图、正视示意图和侧视示意图。方形楔角片可以对4个空间角进行校正，其优点是操作方便，价格便宜。Figures 15 to 17 are respectively a three-dimensional schematic view, a front view schematic view and a side view schematic view of the structure of the square light-correcting wedge angle sheet. The square wedge corner piece can correct 4 spatial angles, and its advantages are convenient operation and low price.
实施例3Example 3
如图18至图21所示，本实施例结构包括依序设置的Z-Block 20、透镜阵列21、楔角块22、打孔玻璃片23和光纤阵列24；As shown in FIGS. 18 to 21, the structure of this embodiment includes a Z-Block 20, a lens array 21, a wedge block 22, a perforated glass sheet 23, and an optical fiber array 24 arranged in sequence;
其中，所述Z-Block 20包括平行四边形基板201、数个滤波片202、203、204、205和一片楔形增透玻璃片206。所述的数个滤波片202、203、204、205和一片楔形增透玻璃片206依序并排固定在平行四边形基板201远离透镜阵列21的端面上。其中，滤波片202、203、204、205用于透射特定波长的光束并反射剩余波长的光束。Wherein, the Z-Block 20 includes a parallelogram substrate 201, a number of filters 202, 203, 204, 205, and a wedge-shaped antireflection glass sheet 206. The several filters 202, 203, 204, 205 and a wedge-shaped anti-reflection glass 206 are fixed side by side on the end surface of the parallelogram substrate 201 away from the lens array 21 in sequence. Among them, the filters 202, 203, 204, and 205 are used to transmit light beams of specific wavelengths and reflect light beams of remaining wavelengths.
所述的透镜阵列21、楔角块22、垫片23和光纤阵列24依序粘接在一起，垫片23用 于实现耦合处光路无胶。The lens array 21, the wedge block 22, the spacer 23 and the optical fiber array 24 are bonded together in sequence, and the spacer 23 is used to realize the optical path of the coupling without glue.
入射光束从光纤阵列24的其中一根光纤245入射透镜阵列21，经由透镜阵列21准直并入射Z-Block 20，再经过Z-Block 20上的楔形增透玻璃片206折射后被另一侧的高反膜反射到滤波片202、203、204、205上。滤波片202、203、204、205依次将不同波长的光束输出至透镜阵列21，并耦合到光纤阵列24的光纤241-244输出。The incident light beam enters the lens array 21 from one of the optical fibers 245 of the optical fiber array 24, is collimated by the lens array 21 and enters the Z-Block 20, and then is refracted by the wedge-shaped antireflection glass 206 on the Z-Block 20 and then is refracted by the other side. The high-reflective film reflected on the filters 202, 203, 204, 205. The filters 202, 203, 204, and 205 sequentially output light beams of different wavelengths to the lens array 21, and are coupled to the optical fibers 241-244 of the optical fiber array 24 to output.
Z-Block 20、透镜阵列21以及光纤阵列24均集成在同一个基片25上，其中，入射光束与出射光束均在光纤阵列24的同一侧输入或输出。The Z-Block 20, the lens array 21, and the optical fiber array 24 are all integrated on the same substrate 25, wherein the incident beam and the outgoing beam are all input or output on the same side of the optical fiber array 24.
其中，Z-Block 20上粘接的楔形增透玻璃片206用于对Z-Block 20一侧的光束进行间距校正，以确保入射光束与出射光束的间距相同。Z-Block 20一侧镀有高反膜，用于反射4个波长的光到滤波片202、203、204、205上。Among them, the wedge-shaped antireflection glass sheet 206 adhered to the Z-Block 20 is used to correct the distance between the light beams on the side of the Z-Block 20 to ensure that the incident light beam and the outgoing light beam have the same distance. Z-Block 20 is plated with a high-reflection film on one side to reflect light of 4 wavelengths to the filters 202, 203, 204, and 205.
本实施例的Z-Block 20的输出光束平行度很高，从Z-Block出射的4束不同波长的光束可以以很小的插损耦合到光纤阵列24输出。本实施例图示示出的透镜阵列21是1x5光纤阵列，实现包括对入射光束的准直以及对出射光束的聚焦耦合。The output beam of the Z-Block 20 in this embodiment has a high degree of parallelism, and the four beams of different wavelengths emitted from the Z-Block can be coupled to the optical fiber array 24 for output with a small insertion loss. The lens array 21 shown in the figure in this embodiment is a 1x5 optical fiber array, and the realization includes the collimation of the incident light beam and the focusing and coupling of the outgoing light beam.
本实施例的光纤阵列是1x5阵列，包括带V型槽的下基板247、5根光纤241-245以及上基板246。其中，光纤245用于传输入射光束，光纤241、242、243、244用于传输出射光束。需要指出的是，本发明所述的小型自由空间波分复用器既可以作为波分解复用器(Demux)使用，也可以作为波分复用器(Mux)使用。The optical fiber array in this embodiment is a 1×5 array, and includes a lower substrate 247 with a V-shaped groove, five optical fibers 241-245, and an upper substrate 246. Among them, the optical fiber 245 is used to transmit the incident light beam, and the optical fibers 241, 242, 243, and 244 are used to transmit the outgoing light beam. It should be pointed out that the small free-space wavelength division multiplexer of the present invention can be used as a wavelength division multiplexer (Demux) or a wavelength division multiplexer (Mux).
实施例4Example 4
如图22至图24之一所示，本实施例包括依序设置的Z-Block 20、透镜阵列21、楔角块22、打孔玻璃片23和光纤阵列24；As shown in one of Figures 22 to 24, this embodiment includes a Z-Block 20, a lens array 21, a wedge block 22, a perforated glass sheet 23, and an optical fiber array 24 that are arranged in sequence;
所述Z-Block 20包括平行四边形基板201、数个滤波片202、203、204、205和一片楔形增透玻璃片206。所述的数个滤波片202-205和一片楔形增透玻璃片206依序并排固定在平行四边形基板201远离透镜阵列21的端面上。其中，滤波片202、203、204、205用于透射特定波 长的光束并反射剩余波长的光束。The Z-Block 20 includes a parallelogram substrate 201, a number of filters 202, 203, 204, 205, and a wedge-shaped antireflection glass 206. The several filters 202-205 and a wedge-shaped antireflection glass 206 are fixed side by side on the end surface of the parallelogram substrate 201 away from the lens array 21 in sequence. Among them, the filters 202, 203, 204, and 205 are used to transmit light beams of a specific wavelength and reflect light beams of the remaining wavelengths.
所述的透镜阵列21、楔角块22、垫片23和光纤阵列24依序粘接在一起，垫片23用于实现耦合处光路无胶。The lens array 21, the wedge block 22, the spacer 23 and the optical fiber array 24 are bonded together in sequence, and the spacer 23 is used to realize the optical path of the coupling without glue.
入射光束从光纤阵列24的其中一根光纤245入射透镜阵列21，经由透镜阵列21准直并入射Z-Block 20，再经过Z-Block 20上的楔形增透玻璃片206后被另一侧的高反膜反射到滤波片202-205上。滤波片202-205依次将不同波长的光束输出至透镜阵列21，并耦合到光纤阵列24的光纤241、242、243、244输出。The incident light beam enters the lens array 21 from one of the optical fibers 245 of the optical fiber array 24, collimates through the lens array 21 and enters the Z-Block 20, and then passes through the wedge-shaped anti-reflection glass 206 on the Z-Block 20 before being passed to the other side. The high reflective film is reflected on the filters 202-205. The filters 202-205 sequentially output light beams of different wavelengths to the lens array 21, and are coupled to the optical fibers 241, 242, 243, and 244 of the optical fiber array 24 to output.
Z-Block 20、透镜阵列21以及光纤阵列24均集成在同一个基片25上，其中，入射光束与出射光束均在光纤阵列24的同一侧输入或输出。The Z-Block 20, the lens array 21, and the optical fiber array 24 are all integrated on the same substrate 25, wherein the incident beam and the outgoing beam are all input or output on the same side of the optical fiber array 24.
其中，Z-Block 20上粘接的楔形增透玻璃片206用于对Z-Block 20一侧的光束进行间距校正，以确保入射光束与出射光束的间距相同。Z-Block 20一侧镀有高反膜，用于反射4个波长的光到滤波片202-205上。Wherein, the wedge-shaped antireflection glass sheet 206 adhered to the Z-Block 20 is used to correct the distance between the light beams on the side of the Z-Block 20 to ensure that the incident light beam and the outgoing light beam have the same distance. Z-Block 20 is plated with a high-reflection film to reflect light of 4 wavelengths to the filters 202-205.
当Z-Block 20输出光束的平行度不足时，从Z-Block 20出射的4束光束需要加入校光楔角片27、28、29和210来校正其空间角。其中校光楔角片27、28、29和210设于Z-Block20和透镜阵列之间，经过校正的光束通过透镜阵列21耦合至光纤阵列24输出。When the parallelism of the output beams of the Z-Block 20 is insufficient, the 4 beams emitted from the Z-Block 20 need to be added to the light correction wedge angles 27, 28, 29, and 210 to correct their spatial angles. Among them, the correction wedge angle plates 27, 28, 29, and 210 are arranged between the Z-Block 20 and the lens array, and the corrected light beam is coupled to the optical fiber array 24 through the lens array 21 and output.
本实施例的透镜阵列21和光纤阵列24同实施例3。The lens array 21 and the optical fiber array 24 of this embodiment are the same as those in the third embodiment.
实施例5Example 5
如图25至图28之一所示，本实施例包括依序设置的Z-Block 30、透镜阵列31、楔角块32、打孔玻璃片33和光纤阵列34；As shown in one of Figures 25 to 28, this embodiment includes a Z-Block 30, a lens array 31, a wedge block 32, a perforated glass sheet 33, and an optical fiber array 34 that are arranged in sequence;
其中，重点结合参考图28，所述Z-Block 30包括COM端一侧带有斜角的五边形基板301、数个滤波片302、303、304、305和一片增透玻璃片306。所述的数个滤波片302、303、304、3055和一片平行四边形增透玻璃片(平行增透玻璃片)306依序并排固定在带斜角的五边形基板301远离透镜阵列31的端面上。其中，滤波片302-305用于透射特定波长的光束并反射剩 余波长的光束。28, the Z-Block 30 includes a pentagonal substrate 301 with a bevel on one side of the COM end, a number of filters 302, 303, 304, 305, and a piece of antireflection glass 306. The several filters 302, 303, 304, 3055 and a parallelogram anti-reflection glass sheet (parallel anti-reflection glass sheet) 306 are sequentially fixed side by side on the end surface of the pentagonal substrate 301 with beveled angle away from the lens array 31 superior. Among them, the filters 302-305 are used to transmit light beams of specific wavelengths and reflect light beams of remaining wavelengths.
所述的透镜阵列31、楔角块32、垫片33和光纤阵列34依序粘接在一起，垫片33用于实现耦合处光路无胶。The lens array 31, the wedge block 32, the spacer 33 and the optical fiber array 34 are bonded together in sequence, and the spacer 33 is used to realize the optical path of the coupling without glue.
入射光束从光纤阵列34的其中一根光纤345入射透镜阵列31，经由透镜阵列31准直并入射Z-Block 30，再经过Z-Block 30上的平行增透玻璃片306和五边形基板301的斜边折射后被另一侧的高反膜反射到滤波片302、303、304、305上。滤波片302-305依次将不同波长的光束输出至透镜阵列31，并耦合到光纤阵列34的光纤341、342、343、344输出。The incident light beam enters the lens array 31 from one of the optical fibers 345 of the optical fiber array 34, collimates through the lens array 31 and enters the Z-Block 30, and then passes through the parallel antireflection glass 306 and the pentagonal substrate 301 on the Z-Block 30 After being refracted, the hypotenuse is reflected by the high-reflection film on the other side to the filters 302, 303, 304, and 305. The filters 302-305 sequentially output light beams of different wavelengths to the lens array 31, and are coupled to the optical fibers 341, 342, 343, and 344 of the optical fiber array 34 to output.
Z-Block 30、透镜阵列31以及光纤阵列34均集成在同一个基片35上，其中，入射光束与出射光束均在光纤阵列34的同一侧输入或输出。The Z-Block 30, the lens array 31, and the optical fiber array 34 are all integrated on the same substrate 35, wherein the incident beam and the outgoing beam are all input or output on the same side of the optical fiber array 34.
其中，Z-Block 30五边形基板301COM端一侧的斜角和粘接的增透玻璃片306用于对Z-Block 30一侧的光束进行间距校正，以确保入射光束与出射光束的间距相同。Z-Block 30一侧镀有高反膜，用于反射4个波长的光到滤波片302、303、304、305上。Among them, the oblique angle on the COM end of the Z-Block 30 pentagonal substrate 301 and the bonded anti-reflection glass sheet 306 are used to correct the distance between the beams on the Z-Block 30 side to ensure the distance between the incident beam and the outgoing beam. same. Z-Block 30 is plated with a high-reflection film on one side to reflect light of 4 wavelengths to the filters 302, 303, 304, and 305.
本实施例的Z-Block 30的输出光束平行度很高，从Z-Block 30出射的4束不同波长的光束可以以很小的插损耦合到光纤阵列34输出。本实施例图示示出的透镜阵列31是1x5光纤阵列，实现包括对入射光束的准直以及对出射光束的聚焦耦合。The output beams of the Z-Block 30 in this embodiment have a high degree of parallelism, and the four beams of different wavelengths emitted from the Z-Block 30 can be coupled to the optical fiber array 34 for output with a small insertion loss. The lens array 31 shown in the figure in this embodiment is a 1x5 optical fiber array, and the realization includes the collimation of the incident light beam and the focusing and coupling of the outgoing light beam.
本实施例的光纤阵列是1x5阵列，包括带V型槽的下基板347、5根光纤341、342、343、345以及上基板346。其中，光纤345用于传输入射光束，光纤341、342、343、344用于传输出射光束。需要指出的是，本发明所述的小型自由空间波分复用器既可以作为波分解复用器(Demux)使用，也可以作为波分复用器(Mux)使用。The optical fiber array of this embodiment is a 1×5 array, and includes a lower substrate 347 with a V-shaped groove, five optical fibers 341, 342, 343, and 345, and an upper substrate 346. Among them, the optical fiber 345 is used to transmit the incident light beam, and the optical fibers 341, 342, 343, and 344 are used to transmit the outgoing light beam. It should be pointed out that the small free-space wavelength division multiplexer of the present invention can be used as a wavelength division multiplexer (Demux) or a wavelength division multiplexer (Mux).
实施例6Example 6
如图29至图31之一所示，本发明实施例6，包括依序设置的Z-Block 30、透镜阵列31、楔角块32、打孔玻璃片33和光纤阵列34；As shown in one of FIGS. 29 to 31, Embodiment 6 of the present invention includes a Z-Block 30, a lens array 31, a wedge block 32, a perforated glass sheet 33, and an optical fiber array 34 that are arranged in sequence;
所述Z-Block 30包括COM端一侧带有斜角的五边形基板301、数个滤波片302、303、304、 305和一片增透玻璃片306。所述的数个滤波片302、303、304、305和一片增透玻璃片306依序并排固定在带斜角的五边形基板301远离透镜阵列31的端面上。其中，滤波片302、303、304、305用于透射特定波长的光束并反射剩余波长的光束。The Z-Block 30 includes a pentagonal substrate 301 with a bevel on one side of the COM end, a number of filters 302, 303, 304, 305, and a piece of anti-reflection glass 306. The several filters 302, 303, 304, 305 and a piece of anti-reflection glass 306 are fixed side by side on the end surface of the pentagonal substrate 301 with beveled angle away from the lens array 31 in sequence. Among them, the filters 302, 303, 304, and 305 are used to transmit light beams of specific wavelengths and reflect light beams of remaining wavelengths.
所述的透镜阵列31、楔角块32、垫片33和光纤阵列34依序粘接在一起，垫片33用于实现耦合处光路无胶。The lens array 31, the wedge block 32, the spacer 33 and the optical fiber array 34 are bonded together in sequence, and the spacer 33 is used to realize the optical path of the coupling without glue.
入射光束从光纤阵列34的其中一根光纤345入射透镜阵列31，经由透镜阵列31准直并入射Z-Block 30，再经过Z-Block 30上的增透玻璃片306后被另一侧的高反膜反射到滤波片302、303、304、305上。滤波片302、303、304、305依次将不同波长的光束输出至透镜阵列31，并耦合到光纤阵列34的光纤341-344输出。The incident light beam enters the lens array 31 from one of the optical fibers 345 of the optical fiber array 34, collimates through the lens array 31 and enters the Z-Block 30, and then passes through the anti-reflection glass 306 on the Z-Block 30, and is passed by the other side of the lens array. The reflective film is reflected on the filters 302, 303, 304, and 305. The filters 302, 303, 304, and 305 sequentially output light beams of different wavelengths to the lens array 31, and are coupled to the output of the optical fibers 341-344 of the optical fiber array 34.
Z-Block 30、透镜阵列31以及光纤阵列34均集成在同一个基片35上，其中，入射光束与出射光束均在光纤阵列34的同一侧输入或输出。The Z-Block 30, the lens array 31, and the optical fiber array 34 are all integrated on the same substrate 35, wherein the incident beam and the outgoing beam are all input or output on the same side of the optical fiber array 34.
其中，Z-Block 30五边形基板301COM端一侧的斜角和粘接的增透玻璃片306用于对Z-Block 30一侧的光束进行间距校正，以确保入射光束与出射光束的间距相同。Z-Block 30一侧镀有高反膜，用于反射4个波长的光到滤波片302、303、304、305上。Among them, the oblique angle on the COM end of the Z-Block 30 pentagonal substrate 301 and the bonded anti-reflection glass sheet 306 are used to correct the distance between the beams on the Z-Block 30 side to ensure the distance between the incident beam and the outgoing beam. same. Z-Block 30 is plated with a high-reflection film on one side to reflect light of 4 wavelengths to the filters 302, 303, 304, and 305.
当Z-Block 30输出光束的平行度不足时，从Z-Block 30出射的4束光束需要加入校光楔角片37、38、39和310来校正其空间角。其中校光楔角片37、38、39和310设于Z-Block30和透镜阵列之间，经过校正的光束通过透镜阵列31耦合至光纤阵列34输出。When the parallelism of the output beams of the Z-Block 30 is insufficient, the four beams emitted from the Z-Block 30 need to be added to the light-correcting wedges 37, 38, 39, and 310 to correct their spatial angles. Among them, the correction wedge angle plates 37, 38, 39, and 310 are arranged between the Z-Block 30 and the lens array, and the corrected light beams are coupled to the optical fiber array 34 through the lens array 31 and output.
本实施例的透镜阵列31和光纤阵列34同实施例5。The lens array 31 and the optical fiber array 34 of this embodiment are the same as those of the fifth embodiment.
以上所述为本发明实施例，对于本领域的普通技术人员而言，根据本发明的教导，在不脱离本发明的原理和精神的情况下凡依本发明申请专利范围所做的均等变化、修改、替换和变型，皆应属本发明的涵盖范围。The above are the embodiments of the present invention. For those of ordinary skill in the art, according to the teachings of the present invention, all the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention without departing from the principle and spirit of the present invention , Substitutions and modifications should all fall within the scope of the present invention.
Claims (10)
- 一种小型自由空间波分复用器，其特征在于：其包括：A small free space wavelength division multiplexer, which is characterized in that it comprises:Z-Block，其一侧面为光信号传输面且形成有相互间隔的第一传输面和第二传输面，所述的第一传输面包括若干并排设置的滤波片，且若干滤波片具有不同的工作波长，所述的第二传输面包括增透光学片；Z-Block, one side of which is an optical signal transmission surface and is formed with a first transmission surface and a second transmission surface spaced apart from each other. The first transmission surface includes a plurality of filters arranged side by side, and the plurality of filters have different Working wavelength, the second transmission surface includes an antireflection optical sheet;透镜阵列，与Z-Block的第一传输面和第二传输面相对，且具有与增透光学片和若干滤波片一一对应并相对的透镜单元；The lens array is opposite to the first transmission surface and the second transmission surface of the Z-Block, and has a lens unit corresponding to and opposite to the antireflection optical sheet and a plurality of filters in a one-to-one correspondence;光纤阵列，与透镜阵列相对，且具有若干与透镜阵列的透镜单元一一对应的子光纤。The optical fiber array is opposite to the lens array and has a number of sub-fibers corresponding to the lens units of the lens array one-to-one.
- 根据权利要求1所述的一种小型自由空间波分复用器，其特征在于：所述的透镜阵列为1×5透镜阵列，所述的滤波片对应为四片，所述的增透光学片为一片。A small free-space wavelength division multiplexer according to claim 1, characterized in that: the lens array is a 1×5 lens array, the filter is corresponding to four, and the antireflection optics One piece.
- 根据权利要求2所述的一种小型自由空间波分复用器，其特征在于：所述的光纤阵列为1×5光纤阵列，其包括一侧具有V型槽的下基板、上基板和五根传输光纤，所述的上基板固定在下基板的上端面，且上基板的一侧面与透镜阵列相对，五根传输光纤并排连接在下基板的V型槽内且与上基板的另一侧面相对，五根传输光纤的其中四根与四片滤波片对应，余下一根传输光纤与增透光学片相对应。A small free-space wavelength division multiplexer according to claim 2, wherein the optical fiber array is a 1×5 optical fiber array, which includes a lower substrate with a V-shaped groove on one side, an upper substrate, and five A transmission fiber, the upper substrate is fixed on the upper end surface of the lower substrate, and one side of the upper substrate is opposite to the lens array, and five transmission fibers are connected side by side in the V-shaped groove of the lower substrate and opposite to the other side of the upper substrate, Four of the five transmission fibers correspond to the four filters, and the remaining transmission fiber corresponds to the antireflection optical sheet.
- 根据权利要求1所述的一种小型自由空间波分复用器，其特征在于：所述的Z-Block、透镜阵列和光纤阵列均相对固定在一基片上。A small free-space wavelength division multiplexer according to claim 1, wherein the Z-Block, lens array and optical fiber array are relatively fixed on a substrate.
- 根据权利要求4所述的一种小型自由空间波分复用器，其特征在于：所述Z-Block的另一侧面上镀设有反射膜。A small free-space wavelength division multiplexer according to claim 4, wherein a reflective film is plated on the other side of the Z-Block.
- 根据权利要求5所述的一种小型自由空间波分复用器，其特征在于：所述的Z-Block与透镜阵列之间还设有与若干滤波片一一对应的校光楔角片，所述的的透镜阵列和光纤阵列之间还设有楔角块和垫片，所述的透镜阵列、楔角块、垫片和光纤阵列依序固定连接为一体。A small free-space wavelength division multiplexer according to claim 5, characterized in that: between the Z-Block and the lens array, there are further optical correction wedge pieces corresponding to a number of filters one-to-one. A wedge block and a spacer are also arranged between the lens array and the optical fiber array, and the lens array, the wedge block, the spacer and the optical fiber array are fixedly connected into one body in sequence.
- 根据权利要求6所述的一种小型自由空间波分复用器，其特征在于：所述的校光楔角片为圆柱形校光楔角片或方形校光楔角片。A small free-space wavelength division multiplexer according to claim 6, characterized in that: the optical correction wedge is a cylindrical optical correction wedge or a square optical correction wedge.
- 根据权利要求5至7之一所述的一种小型自由空间波分复用器，其特征在于：所述的Z-Block包括平行基板、贴合在平行基板一侧面的若干滤波片和一片增透玻璃片，以及斜面固定在平行基板另一侧面的直角棱镜。A small free-space wavelength division multiplexer according to any one of claims 5 to 7, wherein the Z-Block includes a parallel substrate, a number of filters attached to one side of the parallel substrate, and an amplifier A transparent glass sheet and a right-angle prism with an inclined surface fixed on the other side of the parallel substrate.
- 根据权利要求5至7之一所述的一种小型自由空间波分复用器，其特征在于：所述的Z-Block包括平行基板、贴合在平形基板一侧面的若干滤波片和一片楔形增透玻璃片。A small free-space wavelength division multiplexer according to any one of claims 5 to 7, wherein the Z-Block includes a parallel substrate, a number of filters attached to one side of the flat substrate, and a wedge Anti-reflection glass.
- 根据权利要求5至7之一所述的一种小型自由空间波分复用器，其特征在于：所述的Z-Block包括：A small free-space wavelength division multiplexer according to any one of claims 5 to 7, wherein the Z-Block comprises:五边形基板，其一侧具有斜面；A pentagonal substrate with a slope on one side;若干滤波片，间隔布设在五边形基板与斜面同侧的侧面上；Several filters are arranged at intervals on the side surface of the pentagonal base plate on the same side as the inclined plane;一片平行增透玻璃片，布设在五边形基板的斜面上。A piece of parallel antireflection glass is arranged on the slope of the pentagonal substrate.
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| CN102645705A (en) * | 2011-02-21 | 2012-08-22 | 华为技术有限公司 | Wavelength division multiplexer (WDM), optical switch device and optical switch control method |
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| CN102645705A (en) * | 2011-02-21 | 2012-08-22 | 华为技术有限公司 | Wavelength division multiplexer (WDM), optical switch device and optical switch control method |
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