CN212009021U - Integrated collimator array and high-isolation device capable of realizing multi-path light path coupling - Google Patents
Integrated collimator array and high-isolation device capable of realizing multi-path light path coupling Download PDFInfo
- Publication number
- CN212009021U CN212009021U CN202020803597.4U CN202020803597U CN212009021U CN 212009021 U CN212009021 U CN 212009021U CN 202020803597 U CN202020803597 U CN 202020803597U CN 212009021 U CN212009021 U CN 212009021U
- Authority
- CN
- China
- Prior art keywords
- base
- lens
- array
- optical fiber
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses an integral type collimater array, including the glass base, the glass base includes lens base and fiber base, and lens base and fiber base pass through connection base and connect, lens base, fiber base and connection base integrated into one piece, be fixed with lens array on the terminal surface of lens base, lens array and fiber base are located the both sides of lens base respectively, fiber base is the flute profile, and fiber base includes base and side base down, side base and base vertical fixation down, and V type groove has been seted up to the upper surface of base down, and V type inslot is fixed with the naked form fiber array corresponding with lens array, and the optical axis of naked form optic fibre coincides each other rather than the optical axis of corresponding lens, the base top is fixed with the apron down, the high parallel and level of apron and side base, naked form fiber array is located the below of apron. The collimator array in which the bare fiber and the lens are integrated can convert the scattered light exiting from the ribbon fiber into parallel light or collimated light.
Description
Technical Field
The utility model belongs to the technical field of fiber communication, in particular to but high isolation device of integral type collimater array and multichannel light path coupling.
Background
The optical isolator is a passive optical device which only allows one-way light to pass through, and has the function of limiting the direction of the light, so that the mutual interference among multiple channels in a communication system can be reduced, and the light wave transmission efficiency is improved. In the prior art, the optical isolator device mainly adopts two modes, one mode is that each tiny isolator is directly attached to the end face of each optical fiber, then a plurality of optical fibers are aligned to a terminal with a larger receiving area, the other mode is an on-line mode, namely, two ends are in a cable (jumper) mode, and the isolator is added between two collimators to realize functions. The two optical isolation devices are large in size and do not meet the requirement that the size of a device is smaller and smaller during large-scale integration at present. Especially in an online manner, if multi-channel optical isolation is to be realized, for example, 4 collimators need to be placed in 4 paths of collimators, 8 collimators need to be placed in 8 paths of collimators, 12 collimators need to be placed in 12 paths of collimators, and the like, not only the volume is large and the occupied space is large, but also the number of the used collimators and isolators is large and the cost is high. Under the development trend of multi-path large-capacity optical fiber transmission, the application of the optical isolation device is greatly limited, and the optical isolation device has great defects in market application.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned problem that exists among the prior art, provide a simple structure reasonable optic fibre and lens integral type collimator array, provide a but the high isolation device of multichannel light path coupling that the forward insertion loss of light path is little, the reverse isolation of light path is high simultaneously.
Based on the above-mentioned purpose, the utility model discloses take following technical scheme:
an integrated collimator array comprises a glass base, the glass base comprises a lens base and an optical fiber base, the lens base and the optical fiber base are connected through a connecting base, the lens base, the optical fiber base and the connecting base are integrally formed, a lens array is fixed on the end face of the lens base, the lens array and the optical fiber base are respectively positioned on two sides of the lens base, the optical fiber base is groove-shaped, the optical fiber base comprises a lower base and a side base, the side base is vertically fixed with the lower base, a V-shaped groove is formed in the upper surface of the lower base, a bare optical fiber array corresponding to the lens array is fixed in the V-shaped groove, the optical axis of the bare optical fiber and the optical axis of the corresponding lens are mutually overlapped, an cover plate is fixed above the lower base, the cover plate is highly flush with the side base, the bare optical fiber array is positioned below the cover plate, and an adhesive layer is further, the adhesive layer is contacted and fixed with the side base and the cover plate, and the adhesive layer wraps the ribbon optical fibers corresponding to the bare optical fiber array.
Further, the lens array is a silicon lens or a fused silica lens.
Furthermore, the lens array and the lens base, the bare optical fiber and the lower base, and the cover plate and the lower base are fixed through adhesives.
A high-isolation device capable of realizing multi-path optical path coupling comprises a glass base, wherein an isolator is fixed in the middle of the upper surface of the glass base, two integrated collimator arrays are respectively fixed at two end parts of the upper surface of the glass base, and the two integrated collimator arrays are symmetrically arranged at two sides of the isolator;
the integrated collimator array comprises a glass base, the glass base comprises a lens base and an optical fiber base, the lens base and the optical fiber base are connected through a connecting base, the lens base, the optical fiber base and the connecting base are integrally formed, a lens array is fixed on the end face of the lens base, the lens array and the optical fiber base are respectively positioned on two sides of the lens base, the optical fiber base is groove-shaped, the optical fiber base comprises a lower base and a side base, the side base is vertically fixed with the lower base, a V-shaped groove is formed in the upper surface of the lower base, a bare optical fiber array corresponding to the lens array is fixed in the V-shaped groove, the optical axis of the bare optical fiber and the optical axis of the corresponding lens are mutually overlapped, an cover plate is fixed above the lower base, the cover plate is highly flush with the side base, the bare optical fiber array is positioned below the cover plate, and an adhesive layer, the adhesive layer is contacted and fixed with the side base and the cover plate, and the adhesive layer wraps the ribbon optical fibers corresponding to the bare optical fiber array.
Further, the lens array is a silicon lens or a fused silica lens.
Furthermore, the lens array and the lens base, the bare optical fiber and the lower base, and the cover plate and the lower base are fixed through adhesives.
Further, the isolator and the glass base, and the integrated collimator array and the glass base are fixed through adhesives.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model provides an integral type collimator array, lens array, fiber array are located lens base, fiber base respectively, and the interval between lens base and the fiber base leads to the plain noodles in forming the glass base, and the optical axis of naked form optic fibre coincides each other rather than the optical axis of corresponding lens to lens array terminal surface produces parallel light or collimated light. The cover plate can press the bare optical fiber array, and the adhesive layer can be used for bonding and fixing the ribbon optical fiber, the optical fiber base plate and the cover plate. The collimator array integrating the bare fiber and the lens can convert scattered light emitted from the ribbon fiber into parallel light or collimated light, the scattered light is emitted from the ribbon fiber, passes through the end face of the bare fiber array of the integrated collimator array, and passes through the lens array to convert a divergent light beam into a parallel-propagating light beam, namely, the parallel light or the collimated light. In addition, the integrated collimator array is small in size, 12-path collimators can be arranged within the width range of 3mm, the width of the single-path collimator with the minimum width in the current market reaches 0.7mm, and if 12-path collimators are to be arranged, the minimum width is at least 8.4 mm. The integrated collimator array is convenient to use, single-function light transmission is not realized by utilizing a plurality of single channels in the prior art, and when the integrated collimator array is used for manufacturing a high-isolation device or other devices, the workload of coupling can be correspondingly reduced, and the manufacturing time of devices is saved.
(2) The utility model provides a but high isolation device of multichannel light path coupling, two end fixing of glass base have an integral type collimator array, and the mid portion of glass base is fixed with the isolator, and integral type collimator array symmetry sets up on the both sides of isolator, and the optical center axle of each pair lens coincides each other in two lens arrays. The scattered light is firstly emitted from the end face of the bare optical fiber array of the one-side integrated collimator array, the scattered light passes through the lens array, the divergent light beam is converted into a parallel-propagating light beam, namely, the parallel light or the collimated light, then enters the lens array of the other-side integrated collimator array through the isolator to form a converged light beam, and finally enters the bare optical fiber array. The high isolation device is provided with a plurality of light path channels, and each light path channel can carry out light path coupling and has no influence on each other. The insertion loss of the high-isolation device is very small, and is less than 0.7 dB; meanwhile, output light with reverse high isolation can be obtained, and the isolation is larger than 50 dB. The high-isolation device can realize multi-path light path coupling in a very small volume, reduces the production cost of realizing single-function light transmission products by utilizing a plurality of single channels, improves the production efficiency and reduces the volume of devices.
(3) The utility model discloses in use silicon lens or fused silica lens, light transmissivity between them is very high, and the loss of light is little, can also pass through convex lens effect, becomes the parallel light state to light from the state of sending out a little, then gathers a bit and gets into the fibre core of optic fibre from the parallel light state again, realizes the low-loss transmission of light.
Drawings
FIG. 1 is a schematic structural diagram of an integrated collimator array;
FIG. 2 is a diagram illustrating the positional relationship between a cover and a fiber base;
FIG. 3 is a diagram showing the positional relationship between the V-groove and the fiber base;
fig. 4 is a schematic structural diagram of a high-isolation device capable of multi-path optical coupling.
In the figure: 1. an integral collimator array; 101. a lens base; 102. a fiber base; 1021. a lower base; 1022. a side base; 103. a connection base; 104. a lens array; 105. a V-shaped groove; 106. a bare optical fiber array; 107. a cover plate; 108. an adhesive layer; 109. a ribbon fiber; 2. a glass base; 3. an isolator.
Detailed Description
Example 1
As shown in fig. 1-3, the utility model discloses an integral type collimator array 1, including the glass base, the glass base includes lens base 101 and fiber base 102, and lens base 101 and fiber base 102 pass through connection base 103 to be connected, lens base 101, fiber base 102 and connection base 103 integrated into one piece. A lens array 104 is fixed on the end surface of the lens base 101 through an adhesive, the lens array 104 is a silicon lens or a fused silica lens, and the lens array 104 and the fiber base 102 are respectively located on both sides of the lens base 101. The optical fiber base 102 is in a groove shape, the optical fiber base 102 comprises a lower base 1021 and a side base 1022, the side base 1022 and the lower base 1021 are vertically fixed, a V-shaped groove 105 is formed in the upper surface of the lower base 1021, a bare optical fiber array 106 corresponding to the lens array 104 is fixed in the V-shaped groove 105 through an adhesive, and the optical axis of the bare optical fiber and the optical axis of the corresponding lens coincide with each other. A cover plate 107 is fixed above the lower base 1021 through an adhesive, the height of the cover plate 107 is flush with that of the side base 1022, the bare optical fiber array 106 is located below the cover plate 107, an adhesive layer 108 is further arranged above the lower base 1021, the adhesive layer 108 is fixed in contact with the side base 1022, the adhesive layer 108 and the cover plate 107, and the adhesive layer 108 wraps the ribbon optical fibers 109 corresponding to the bare optical fiber array 106.
When the optical fiber splicing device is used, the bare optical fiber array 106 is stripped from the ribbon optical fiber 109, the end face of the bare optical fiber is processed to be smooth through laser fiber cutting, the length difference of every two bare optical fiber end faces is kept not to exceed 20 micrometers, and the bare optical fiber array 106 is fixed in the corresponding V-shaped groove 105. The other end of the ribbon fiber 109 is connected to a laser light source with a specified wavelength, the distance between the end surface of the bare fiber array 106 and the light passing surface in the glass base is adjusted, the diameter of a light spot emitted from the end surface of the lens array 104 is observed to be within a certain range by the aid of a beam analyzer, the optical axis of the bare fiber and the optical axis of the corresponding lens are overlapped, and therefore collimated light is generated on the end surface of the lens array 104. The bare fiber array 106 is pressed using the cover plate 107, and the adhesive layer 108 may adhesively fix the ribbon fiber 109, the fiber base 102, and the cover plate 107. The scattered light emitted from the ribbon fiber 109 passes through the collimator array 1 in which the bare fiber and the lens are integrated, and then the emitted light is parallel light or collimated light.
Example 2
As shown in fig. 1-4, the utility model discloses a but high isolation device of multichannel light path coupling, including glass base 2, the positive middle position of glass base 2 upper surface is fixed with isolator 3 through the adhesive, and two tip of glass base 2 upper surface are fixed with integral type collimater array 1 through the adhesive respectively, and two integral type collimater array 1 symmetries set up the both sides at isolator 3.
Integral type collimator array 1, including the glass base, the glass base includes lens base 101 and fiber base 102, and lens base 101 and fiber base 102 pass through connection base 103 to be connected, and lens base 101, fiber base 102 and connection base 103 integrated into one piece. A lens array 104 is fixed on the end surface of the lens base 101 through an adhesive, the lens array 104 is a silicon lens or a fused silica lens, and the lens array 104 and the fiber base 102 are respectively located on both sides of the lens base 101. The optical fiber base 102 is in a groove shape, the optical fiber base 102 comprises a lower base 1021 and a side base 1022, the side base 1022 and the lower base 1021 are vertically fixed, a V-shaped groove 105 is formed in the upper surface of the lower base 1021, a bare optical fiber array 106 corresponding to the lens array 104 is fixed in the V-shaped groove 105 through an adhesive, and the optical axis of the bare optical fiber and the optical axis of the corresponding lens coincide with each other. A cover plate 107 is fixed above the lower base 1021 through an adhesive, the height of the cover plate 107 is flush with that of the side base 1022, the bare optical fiber array 106 is located below the cover plate 107, an adhesive layer 108 is further arranged above the lower base 1021, the adhesive layer 108 is fixed in contact with the side base 1022, the adhesive layer 108 and the cover plate 107, and the adhesive layer 108 wraps the ribbon optical fibers 109 corresponding to the bare optical fiber array 106.
When the optical fiber array 106 is used, scattered light is firstly emitted from the end face of the optical fiber array 106 of the integrated collimator array 1 on one side, passes through the lens array 104, converts the divergent light beam into a parallel-propagating light beam, namely, a parallel light or a collimated light beam, then enters the lens array 104 of the integrated collimator array 1 on the other side through the isolator 3 to become a converged light beam, and finally enters the optical fiber array 106.
8 samples of the high-isolation device are tested, the insertion loss of the forward direction of the optical path and the isolation of the reverse direction of the optical path are detected by a power meter, and the average values are respectively calculated. The insertion loss criterion is less than 0.7dB and the isolation criterion is greater than 50 dB.
As can be seen from Table 1, the average insertion loss of the four optical channels is 0.61-0.64 dB, and is less than 0.7 dB.
As can be seen from Table 2, the average isolation of the four optical channels is 52.44-52.82 dB, which is greater than 50 dB.
Claims (7)
1. The integrated collimator array is characterized by comprising a glass base, wherein the glass base comprises a lens base and an optical fiber base, the lens base and the optical fiber base are connected through a connecting base, the lens base, the optical fiber base and the connecting base are integrally formed, the lens array is fixed on the end face of the lens base, the lens array and the optical fiber base are respectively positioned on two sides of the lens base, the optical fiber base is in a groove shape, the optical fiber base comprises a lower base and a side base, the side base is vertically fixed with the lower base, a V-shaped groove is formed in the upper surface of the lower base, a bare optical fiber array corresponding to the lens array is fixed in the V-shaped groove, the optical axis of the bare optical fiber is superposed with the optical axis of the corresponding lens, a cover plate is fixed above the lower base, the cover plate is level to the height of the side base, the bare optical fiber array is positioned below the cover plate, and an adhesive layer, the adhesive layer is contacted and fixed with the side base and the cover plate, and the adhesive layer wraps the ribbon optical fibers corresponding to the bare optical fiber array.
2. The unitary collimator array of claim 1, wherein the lens array is a silicon lens or a fused silica lens.
3. The unitary collimator array of claim 1, wherein the lens array and the lens base, the bare optical fiber and the lower base, and the cover plate and the lower base are secured by an adhesive.
4. A high-isolation device capable of realizing multi-path optical path coupling is characterized by comprising a glass base, wherein an isolator is fixed in the middle of the upper surface of the glass base, two integrated collimator arrays are respectively fixed at two end parts of the upper surface of the glass base, and the two integrated collimator arrays are symmetrically arranged at two sides of the isolator;
the integrated collimator array comprises a glass base, the glass base comprises a lens base and an optical fiber base, the lens base and the optical fiber base are connected through a connecting base, the lens base, the optical fiber base and the connecting base are integrally formed, a lens array is fixed on the end face of the lens base, the lens array and the optical fiber base are respectively positioned on two sides of the lens base, the optical fiber base is groove-shaped, the optical fiber base comprises a lower base and a side base, the side base is vertically fixed with the lower base, a V-shaped groove is formed in the upper surface of the lower base, a bare optical fiber array corresponding to the lens array is fixed in the V-shaped groove, the optical axis of the bare optical fiber and the optical axis of the corresponding lens are mutually overlapped, an cover plate is fixed above the lower base, the cover plate is highly flush with the side base, the bare optical fiber array is positioned below the cover plate, and an adhesive layer, the adhesive layer is contacted and fixed with the side base and the cover plate, and the adhesive layer wraps the ribbon optical fibers corresponding to the bare optical fiber array.
5. The multi-path-couplable high-isolation device of claim 4, wherein the lens array is a silicon lens or a fused silica lens.
6. The multi-path-couplable high-isolation device of claim 4, wherein the lens array and the lens base, the bare optical fiber and the lower base, and the cover plate and the lower base are fixed by an adhesive.
7. The multi-path-couplable high-isolation device of claim 4, wherein the isolator and the glass mount, and the integrated collimator array and the glass mount are fixed by an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020803597.4U CN212009021U (en) | 2020-05-15 | 2020-05-15 | Integrated collimator array and high-isolation device capable of realizing multi-path light path coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020803597.4U CN212009021U (en) | 2020-05-15 | 2020-05-15 | Integrated collimator array and high-isolation device capable of realizing multi-path light path coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212009021U true CN212009021U (en) | 2020-11-24 |
Family
ID=73409990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020803597.4U Active CN212009021U (en) | 2020-05-15 | 2020-05-15 | Integrated collimator array and high-isolation device capable of realizing multi-path light path coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212009021U (en) |
-
2020
- 2020-05-15 CN CN202020803597.4U patent/CN212009021U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202083815U (en) | Photic transmit-receive assembly for parallel transmission | |
| CN102183829A (en) | Light receiving and transmitting assembly for broadband parallel optics | |
| KR20050064571A (en) | Connection apparatus for parallel optical interconnect module and parallel optical interconnect module using the same | |
| CN102169214A (en) | Optical transceiver component for parallel transmission | |
| CN218158413U (en) | Silicon optical integrated chip and multi-wavelength parallel optical module component | |
| KR100627701B1 (en) | Parallel optical interconnection module | |
| CN202083816U (en) | Optical transceiver module for broadband parallel optics | |
| CN212009021U (en) | Integrated collimator array and high-isolation device capable of realizing multi-path light path coupling | |
| CN212586588U (en) | Small-sized wavelength division multiplexing device | |
| CN212009027U (en) | Optical fiber FA structure and high return loss light receiving device | |
| CN216052278U (en) | Four-core lens optical fiber for silicon optical chip and silicon optical chip packaging structure | |
| WO2022247706A1 (en) | Optical engine assembly, optical interconnection system, and network device | |
| JP2019502167A (en) | Optical coupling device and method | |
| JP3563360B2 (en) | Optical device, optical communication component, and optical transmission device | |
| CN112114401A (en) | Miniaturized wavelength division multiplexing light receiving assembly and assembling method thereof | |
| CN216351371U (en) | ROSA device for optical channel height conversion optical fiber array passive component and wavelength division multiplexing and multi-channel optical module | |
| CN212905583U (en) | Coupling device of high-precision active optical fiber array | |
| CN210442538U (en) | Array single-mode device and fiber grating demodulator | |
| JPH1138270A (en) | Optical waveguide unit | |
| CN111736267A (en) | Ultra-small compact type multi-channel wavelength division multiplexing module | |
| CN112285836A (en) | Variable optical attenuator with light splitting function | |
| CN111367027A (en) | Optical fiber FA structure and high return loss light receiving device | |
| CN214954210U (en) | Wavelength division multiplexer for 5G forward transmission | |
| CN210442537U (en) | Optical branching chip, array single-mode device and fiber grating demodulator | |
| CN1186686C (en) | Optical attenuator module with automatic regulation function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |