CN115963607B - Based on optic fibre collimating mirror is to inserting subassembly - Google Patents
Based on optic fibre collimating mirror is to inserting subassembly Download PDFInfo
- Publication number
- CN115963607B CN115963607B CN202211563047.XA CN202211563047A CN115963607B CN 115963607 B CN115963607 B CN 115963607B CN 202211563047 A CN202211563047 A CN 202211563047A CN 115963607 B CN115963607 B CN 115963607B
- Authority
- CN
- China
- Prior art keywords
- assembly
- optical fiber
- head
- stainless steel
- laser
- 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
- 239000000835 fiber Substances 0.000 title claims description 8
- 239000013307 optical fiber Substances 0.000 claims abstract description 67
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 25
- 239000010935 stainless steel Substances 0.000 claims abstract description 25
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 230000010287 polarization Effects 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 18
- 230000008878 coupling Effects 0.000 abstract description 17
- 238000010168 coupling process Methods 0.000 abstract description 17
- 238000005859 coupling reaction Methods 0.000 abstract description 17
- 238000003466 welding Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
An optical fiber collimating lens-based opposite-plug assembly comprises an assembly male head, an assembly female head, two optical fiber collimating lenses, a half wave plate, two stainless steel balls, two spring strips and two stainless steel pressing blocks. The device has compact structure and small volume, can couple high-power laser from the input optical fiber to the output optical fiber through the two optical fiber collimating lenses and the half wave plate, ensures the consistency of the polarization directions of the input laser and the output laser, avoids the intervention of external light energy into an optical link, and reduces the influence of external environment on the whole optical system. The input optical fiber collimating lens and the output optical fiber collimating lens are respectively fixed inside the male head and the female head of the component by adopting a laser welding technology, the dimensional tolerance and the coaxiality tolerance of the component are strictly controlled, and the repeatable plugging times are increased on the premise of ensuring that the coupling efficiency of the component meets the use requirement. Finally, the maximum bearable 10W continuous optical power of the component is 92.5 percent of coupling efficiency, 1.2 percent of 50 times of repeated plug-and-pull deviation and 27.1dB of polarization contrast.
Description
Technical field:
the invention relates to an optical fiber collimating lens-based opposite-plug assembly, which is particularly applied to high-power optical fiber link coupling and transmission required by optical fiber communication and optical fiber sensing.
The background technology is as follows:
as a passive device for transmitting and distributing optical signals, the optical fiber flange plate is widely applied to the technical fields of optical fiber communication and optical fiber sensing due to the characteristics of light structure, convenient operation and the like. The working principle of the optical fiber coupler is that the two end faces of the transmitting optical fiber and the receiving optical fiber are precisely butted by the high-precision zirconium dioxide ceramic ferrule in the flange plate, so that the optical energy is coupled into the optical fiber to the greatest extent, the external optical energy is isolated from intervening in an optical link, and the influence of the external environment on system communication is reduced. Because the laser damage threshold of the zirconia ceramic ferrule is low, the common optical fiber flange can bear the optical power of between 0.5W and 1W, and when facing a high-power optical fiber link transmission system, the common practice is to divide the whole optical link into a plurality of sections and splice the sections by using the optical fiber flange. The method not only increases the number of optical fiber flanges, so that the cost of the system is increased, but also reduces the coupling efficiency and reliability of the whole optical link. How to solve the problem that the coupling and transmission of the high-power optical fiber link are the subjects of restricting the optical fiber communication and the optical fiber sensing are urgent.
The optical fiber collimator is often used as an optical fiber coupling device because of the advantages of light weight, small volume and nearly parallel light output, and can bear higher optical power because the inner core device is a lens made of silicon dioxide. Compared with the traditional bonding processes such as gluing, resistance spot welding, riveting and the like, the laser welding adopts laser as a heat source, so that the welding method has the characteristics of high welding speed, high precision, small heat input, small workpiece deformation and the like, and simultaneously has better accessibility of laser, and can reduce the position and structural limitation during welding. The pair of optical fiber collimators are fixed on the fixture by adopting a laser welding process, and high coupling efficiency can be achieved as long as the radial dislocation, the axial included angle and the axial distance between the two optical fiber collimators are controlled, so that the difficult problems of coupling and transmission of a high-power optical fiber link are well solved.
The invention comprises the following steps:
the invention aims to overcome the defects of the prior art, namely, an input optical fiber collimating lens and an output optical fiber collimating lens are respectively fixed in a male head and a female head of a component by adopting a laser welding technology, the dimensional tolerance and the coaxiality tolerance of the male head and the female head of the component are strictly controlled, and the opposite-plug component which is applicable to coupling and transmission of a high-power optical fiber link and can be repeatedly plugged and unplugged is invented.
The technical scheme for solving the technical problems is as follows:
based on optic fibre collimating mirror is to inserting subassembly, its characterized in that: two optical fiber collimating mirrors for coupling the high power laser from the input optical fiber collimating mirror to the output optical fiber collimating mirror; the half wave plate ensures the consistency of the polarization directions of the input laser and the output laser; a component male head serving as a base of the input optical fiber collimating lens; a module mother head as the base of the output optical fiber collimating lens; the dimensional tolerance and coaxiality tolerance of the male component and the female component should be strictly controlled according to the size of the optical fiber collimating lens, the size specification of the optical fiber collimating lens is 17mm in length, 5mm in working distance, 0.45mm in light spot and 2.5mm in beam waist position, the consistency of the coupling efficiency of the component is required to be less than 2%, the repeated plugging and unplugging times are more than 50 times, the dimensional tolerance of the male component and the female component should be less than 50 mu m, and the coaxiality tolerance should be less than 22 mu m; the male and female two stainless steel balls of subassembly, two spring bars, two stainless steel briquetting ensure that the male of subassembly inserts the female time of the first of subassembly, and female first inner wall can firmly block the male of subassembly, prevents that whole subassembly from becoming flexible.
Preferably, the male end of the assembly is welded with the input fiber collimator lens by laser.
Preferably, the assembly female head should be laser welded with the output fiber collimator.
Compared with the prior art, the invention has the beneficial effects that
Based on the characteristics of light weight, small volume, nearly parallel light output and higher continuous optical power bearing of the optical fiber collimator, the invention designs a connector assembly which is applicable to coupling and transmission of a high-power optical fiber link and can be repeatedly plugged and unplugged. The high-power laser can be coupled from the input optical fiber to the output optical fiber through the two optical fiber collimating lenses and the half wave plate, meanwhile, the consistency of the polarization directions of the input laser and the output laser is ensured, the intervention of external light energy to an optical link is avoided, and the influence of the external environment on the whole optical system is reduced. The input optical fiber collimating lens and the output optical fiber collimating lens are respectively fixed inside the male head and the female head of the component by adopting a laser welding technology, the dimensional tolerance and the coaxiality tolerance of the component are strictly controlled, and the repeatable plugging times are increased on the premise of ensuring that the coupling efficiency of the component meets the use requirement. Finally, the maximum bearable 10W continuous optical power of the optical fiber collimating lens opposite-plug assembly is 92.5 percent of coupling efficiency, 1.2 percent of 50 times of repeated plug-in deviation and 27.1dB of polarization contrast.
Description of the drawings:
FIG. 1 is a schematic view of the structural device of the present invention
The specific embodiment is as follows:
the invention is further described below with reference to examples and figures. But should not be used to limit the scope of the invention.
Referring to fig. 1, the whole set of the opposite-insertion assembly structure comprises an input optical fiber collimating lens 1, an assembly male head 2, an output optical fiber collimating lens 3, an assembly female head 4, a first stainless steel ball 5, a first spring strip 6, a first stainless steel pressing block 7, a second stainless steel ball 8, a second spring strip 9, a second stainless steel pressing block 10 and a half wave plate 11.
The assembly male head 2 and the assembly female head 4 are oppositely arranged, the assembly male head 2 is convex, the head is provided with small holes which are vertically symmetrical, and the middle part is provided with an input through hole for placing the input optical fiber collimating lens 1; the assembly female head 4 is concave, an output through hole for placing the output optical fiber collimating lens 3 is arranged in the middle of the assembly female head, and the input through hole and the output through hole are coaxial; the coupling efficiency modulation of the input optical fiber collimating mirror 1 and the output optical fiber collimating mirror 3 is optimal, and the input optical fiber collimating mirror 1 and the output optical fiber collimating mirror 3 are respectively fixed in the component male head 2 and the component female head 4 by adopting laser welding; grooves for placing the first stainless steel ball 5, the first spring strip 6, the second stainless steel ball 8 and the second spring strip 9 are symmetrically arranged at the two protruding ends of the assembly female head 3, a round hole is formed in the bottom of the groove, and the diameter of the round hole is one eighth of the diameter of the first stainless steel ball 5; the assembly female head 4 is also provided with a through hole perpendicular to the output through hole for placing the half wave plate 11; the half wave plate 11 is used for ensuring the consistency of the polarization directions of the input laser and the output laser; a first stainless steel pressing block 7 is arranged outside the first spring strip 6 and is used for pressing the first spring strip 6 and the first stainless steel ball 7, so that the first stainless steel ball 5 protrudes out of a round hole at the bottom of the groove; a second stainless steel pressing block 10 is arranged outside the second spring strip 9 and is used for pressing the second spring strip 9 and the second stainless steel ball 8, so that the second stainless steel ball 8 protrudes out of a round hole at the bottom of the groove; when the assembly male head 2 is inserted into the assembly female head 4, the protruding parts of the first stainless steel ball 5 and the second stainless steel ball 8 are driven to fall into the small holes of the assembly male head 2, so that the assembly female head 4 clamps the assembly male head 2.
Based on the characteristics of light weight, small volume, nearly parallel light output and higher continuous optical power bearing of the optical fiber collimator, the invention designs a connector assembly which is applicable to coupling and transmission of a high-power optical fiber link and can be repeatedly plugged and unplugged. The high-power laser can be coupled from the input optical fiber to the output optical fiber through the two optical fiber collimating lenses and the half wave plate, meanwhile, the consistency of the polarization directions of the input laser and the output laser is ensured, the intervention of external light energy to an optical link is avoided, and the influence of the external environment on the whole optical system is reduced. The input optical fiber collimating lens and the output optical fiber collimating lens are respectively fixed inside the male head and the female head of the component by adopting a laser welding technology, the dimensional tolerance and the coaxiality tolerance of the component are strictly controlled, and the repeatable plugging times are increased on the premise of ensuring that the coupling efficiency of the component meets the use requirement. Meanwhile, the device has simple structure and is easy to realize miniaturization and integration.
Claims (3)
1. Based on optic fibre collimating mirror is to inserting subassembly, its characterized in that: the assembly comprises an assembly male head and an assembly female head which are oppositely arranged; the male head of the assembly is convex, the head is provided with a small hole which is vertically symmetrical, the middle part of the assembly is provided with an input through hole for placing an input optical fiber collimating lens, the female head of the assembly is concave, the middle part of the assembly is provided with an output through hole for placing an output optical fiber collimating lens, and the input through hole and the output through hole are coaxial; grooves for placing stainless steel balls and spring strips are symmetrically arranged at the two protruding ends of the assembly female head, a round hole is formed in the bottom of each groove, and the diameter of each round hole is one eighth of that of each stainless steel ball; the assembly female head is also provided with a through hole perpendicular to the output through hole for placing a half wave plate; the half wave plate is used for ensuring the consistency of the polarization directions of the input laser and the output laser; the stainless steel pressing block is arranged outside the spring strip and used for pressing the spring strip and the stainless steel ball, so that the stainless steel ball protrudes out of the round hole at the bottom of the groove; when the assembly male head is inserted into the assembly female head, the stainless steel ball protruding part is driven to fall into the small hole of the assembly male head, so that the assembly female head clamps the assembly male head.
2. The fiber optic collimator-based add-on assembly of claim 1, wherein: the male head of the assembly is welded with the input optical fiber collimating lens by laser.
3. The fiber optic collimator-based add-on assembly of claim 1, wherein: and the assembly female head is welded with the output optical fiber collimating lens by laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211563047.XA CN115963607B (en) | 2022-12-07 | 2022-12-07 | Based on optic fibre collimating mirror is to inserting subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211563047.XA CN115963607B (en) | 2022-12-07 | 2022-12-07 | Based on optic fibre collimating mirror is to inserting subassembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115963607A CN115963607A (en) | 2023-04-14 |
| CN115963607B true CN115963607B (en) | 2024-03-01 |
Family
ID=87357947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211563047.XA Active CN115963607B (en) | 2022-12-07 | 2022-12-07 | Based on optic fibre collimating mirror is to inserting subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115963607B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0720033A1 (en) * | 1994-12-28 | 1996-07-03 | Kyocera Corporation | Optical connector |
| CN1472557A (en) * | 2002-08-02 | 2004-02-04 | 财团法人工业技术研究院 | Optical fibre end face processing fixer of plastic optical fibre connector |
| CN104793295A (en) * | 2015-03-24 | 2015-07-22 | 长芯盛（武汉）科技有限公司 | USB3.0 type photoelectric hybrid connector connecting assembly of composite optical cable |
| WO2016084113A1 (en) * | 2014-11-26 | 2016-06-02 | オリンパス株式会社 | Optical fiber connection mechanism and optical fiber connection method |
| EP3078999A1 (en) * | 2015-04-09 | 2016-10-12 | Souriau | Connector for collimated optical fibres |
| CN209014766U (en) * | 2018-11-28 | 2019-06-21 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of optical fiber collimator docking style single optical rotary joint |
| CN111708120A (en) * | 2020-07-01 | 2020-09-25 | 武汉理工大学 | High-speed multichannel optical fiber rotary connector |
| CN212515127U (en) * | 2020-06-04 | 2021-02-09 | 深圳市松青锌镁铝精密压铸有限公司 | Adjustable nodal pattern fiber clamp |
-
2022
- 2022-12-07 CN CN202211563047.XA patent/CN115963607B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0720033A1 (en) * | 1994-12-28 | 1996-07-03 | Kyocera Corporation | Optical connector |
| CN1472557A (en) * | 2002-08-02 | 2004-02-04 | 财团法人工业技术研究院 | Optical fibre end face processing fixer of plastic optical fibre connector |
| WO2016084113A1 (en) * | 2014-11-26 | 2016-06-02 | オリンパス株式会社 | Optical fiber connection mechanism and optical fiber connection method |
| CN104793295A (en) * | 2015-03-24 | 2015-07-22 | 长芯盛（武汉）科技有限公司 | USB3.0 type photoelectric hybrid connector connecting assembly of composite optical cable |
| EP3078999A1 (en) * | 2015-04-09 | 2016-10-12 | Souriau | Connector for collimated optical fibres |
| CN209014766U (en) * | 2018-11-28 | 2019-06-21 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of optical fiber collimator docking style single optical rotary joint |
| CN212515127U (en) * | 2020-06-04 | 2021-02-09 | 深圳市松青锌镁铝精密压铸有限公司 | Adjustable nodal pattern fiber clamp |
| CN111708120A (en) * | 2020-07-01 | 2020-09-25 | 武汉理工大学 | High-speed multichannel optical fiber rotary connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115963607A (en) | 2023-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9791632B2 (en) | Optical assembly | |
| US4557557A (en) | Method of making an optical fiber attenuator using a lossy fusion splice | |
| US6014483A (en) | Method of fabricating a collective optical coupling device and device obtained by such a method | |
| US11808999B2 (en) | Elastic averaging coupling | |
| US4423923A (en) | Method and fixture for coupling optical fibers | |
| KR20170012325A (en) | Demountable optical connector for optoelectronic devices | |
| EP3500881B1 (en) | Optical fiber connector ferrule assembly having single reflective surface for beam expansion and expanded beam connector incorporating same | |
| CN115963607B (en) | Based on optic fibre collimating mirror is to inserting subassembly | |
| WO2016155381A1 (en) | Integrated multi-path optical lens array assembly for parallel optical transceiver module | |
| KR101585132B1 (en) | Connecter insert of expanded beam connecter | |
| US20130272658A1 (en) | Multi-mode multi-fiber connection with expanded beam | |
| CN111679369A (en) | High-power laser coupling structure | |
| CN113721323B (en) | Novel multi-core optical fiber coupling device and preparation method | |
| KR20010022335A (en) | Planar optical device connector and method for making same | |
| WO2021143274A1 (en) | Optical device integrated with optical fiber adapter | |
| CN214845879U (en) | High-power beam expanding collimator and connector | |
| JPH0239110A (en) | Optical fiber terminal for optical semiconductor element module | |
| CN201903698U (en) | Laser spot shaper | |
| CN218824808U (en) | Coaxial single-mode beam expanding contact element for light output | |
| CN219533444U (en) | Optical fiber coupler | |
| CN212846045U (en) | Optical fiber coupling structure applied to optical fiber slip ring and optical fiber slip ring | |
| CN214097873U (en) | Optical fiber clamping and aligning device | |
| CN212323399U (en) | Space pumping coupling and output structure and femtosecond pulse laser | |
| CN116719123B (en) | Optical amplification integrated module and assembly method thereof | |
| CN210488045U (en) | High-power laser connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |