CN103364897B - For the lens combination of single-mode laser coupling - Google Patents
For the lens combination of single-mode laser coupling Download PDFInfo
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- CN103364897B CN103364897B CN201310312904.3A CN201310312904A CN103364897B CN 103364897 B CN103364897 B CN 103364897B CN 201310312904 A CN201310312904 A CN 201310312904A CN 103364897 B CN103364897 B CN 103364897B
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Abstract
The present invention relates to the lens combination for single-mode laser coupling, comprise laser instrument, the first lens and the second lens, first lens and the second lens are coaxial lens, laser instrument makes the virtual image formed by it be positioned in the focus of the second lens within being placed on one times of focal length of described first lens, and the light so making object point place send forms directional light after the first lens and the second lens.In this structure, the first lens packaging passive alignment, diminishes the angle of divergence of light beam, and hot spot with a tight waist becomes large, is easy to collimation; In addition, its coupling tolerances allowed is large, and under lower alignment precision requires, also can reach high coupling efficiency, coupling package feasibility greatly improves.
Description
Technical field
The present invention relates to a kind of lens combination for single-mode laser coupling, belong to technical field of photo communication.
Background technology
Flourish along with optical communications industry, optical lens, as optical component requisite in optic communication device, obtains the application of high degree.Lens realize the function to beam collimation or focusing in communication device.The existing method be coupled by single-mode laser directly utilizes single lens to carry out active coupling, but because the angle of divergence of single-mode laser is large, hot spot with a tight waist is little, require that signal-lens aligning and fixed precision are less than 0.2um usually, its coupling and fixed precision little, as shown in Figure 1, packaging technology requirement high, actual production yield is low, and production efficiency is poor.
Summary of the invention
The object of the invention is the deficiency overcoming prior art existence, a kind of lens combination for single-mode laser coupling is provided.
Object of the present invention is achieved through the following technical solutions:
For the lens combination of single-mode laser coupling, feature is: comprise laser instrument, the first lens and the second lens, described first lens and the second lens are coaxial lens, and described laser instrument makes the virtual image formed by it be positioned in the focus of the second lens within being placed on one times of focal length of described first lens.
Further, the above-mentioned lens combination for single-mode laser coupling, also comprises: the first lens collar, the second lens collar, hollow sliding accessory and pedestal; Described first lens and the second lens are placed in the first lens collar and the second lens collar respectively, the described second lens collar is connected with the first lens collar by hollow sliding accessory, the described first lens collar is fixed on pedestal, and described pedestal has the through hole relative with the first lens.
Further, the above-mentioned lens combination for single-mode laser coupling, the described first lens collar is fixed on pedestal by laser bonding mode.
Further, the above-mentioned lens combination for single-mode laser coupling, described hollow sliding accessory is connected with the second lens collar with the first lens collar by laser bonding mode.
Again further, the above-mentioned lens combination for single-mode laser coupling, by metallic glass one-shot forming between described first lens and the first lens collar and between the second lens and the second lens collar.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progress are mainly reflected in:
The invention provides a kind of lens combination for single-mode laser coupling, by the design lens collar, hollow sliding accessory and pedestal etc., the first lens packaging passive alignment, diminishes the angle of divergence of light beam, and hot spot with a tight waist becomes large, is easy to collimation; In addition, its coupling tolerances allowed is large, and under lower alignment precision requires, also can reach high coupling efficiency, coupling package feasibility greatly improves.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1: background technology single-mode laser luminous Shu Liyong simple lens be coupled into the coupling efficiency of single-mode fiber and position offsets (fixed precision) graph of a relation;
Fig. 2: single-mode laser luminous Shu Liyong lens combination of the present invention be coupled into the coupling efficiency of single-mode fiber and position offsets (fixed precision) graph of a relation;
Fig. 3: the decomposition texture schematic diagram of lens combination of the present invention;
Fig. 4: the light path schematic diagram of lens combination of the present invention.
Embodiment
As shown in Figure 3, for the lens combination of single-mode laser coupling, laser instrument 1, first lens 2, second lens 3, the first lens collar 4, the second lens collar 5, hollow sliding accessory 6 and pedestal 7 is comprised; First lens 2 are coaxial lens with the second lens 3, second lens 3 are placed in the second lens collar 5, first lens 2 are placed in the first lens collar 4, the second lens collar 5 is connected with the first lens collar 4 by hollow sliding accessory 6, the first lens collar 4 is fixed on pedestal, pedestal 7 has the through hole relative with the first lens 2.
By metallic glass one-shot forming between first lens 2 and the first lens collar 4 and between the second lens 3 and the second lens collar 5, hollow sliding accessory 6 is connected with the second lens collar 5 with the first lens collar 4 by laser bonding mode, and the first lens collar 4 is fixed on pedestal 7 by laser bonding mode.
As shown in Figure 4, laser instrument 1 is placed on the virtual image formed by it within one times of focal length of the first lens 2 and is positioned in the focus of the second lens 3, and the light so making laser instrument 1 send forms directional light after the first lens 2 and the second lens 3.During coupling package, the first lens collar 4 with the first lens 2 is carried out being coupled with pedestal 7 and focuses, slided by (X, the Y-axis) up and down of the first lens collar 4 on pedestal 7 surface and find the position that coupling efficiency is the highest, by laser bonding, the first lens collar 4 is welded on pedestal 7.Z axis distance between the hollow sliding accessory 6 that size matches and the second lens collar 5 can regulate and control arbitrarily, by the fixture of laser-beam welding machine, and descend left-right and front-back (X by hollow sliding accessory 6 on the surface at the first lens collar 4, Y, Z axis) slide find the position that coupling efficiency is the highest after, with the sliding accessory 6 of laser bonding mode welded hollow and the second lens collar 5, with the distance of fixing Z axis, then pass through hollow sliding accessory 6 again at the first lens collar 4 surface (X up and down, Y-axis) slide, after finding optimistic coupling efficiency, with the sliding accessory 6 of laser bonding mode welded hollow and the first lens collar 4.
The invention provides a kind of lens combination device for single-mode laser coupling, by the design lens collar, hollow sliding accessory and pedestal etc., the first lens packaging passive alignment, diminishes the angle of divergence of light beam, and hot spot with a tight waist becomes large, is easy to collimation; In addition, its coupling tolerances allowed is large, and under lower alignment precision requires, also can reach high coupling efficiency, as shown in Figure 2, coupling package feasibility greatly improves.
It is to be understood that: the above is only the preferred embodiment of the present invention; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1., for the lens combination of single-mode laser coupling, it is characterized in that: comprise laser instrument, the first lens, the second lens, the first lens collar, the second lens collar, hollow sliding accessory and pedestal, described first lens and the second lens are coaxial lens; Described laser instrument makes the virtual image formed by it be positioned in the focus of the second lens within being placed on one times of focal length of described first lens, and described first lens and the second lens are placed in the first lens collar and the second lens collar respectively; Connected by hollow sliding accessory between the described first lens collar and the second lens collar; The described first lens collar is fixed on pedestal; Described pedestal has the through hole relative with the first lens.
2. the lens combination for single-mode laser coupling according to claim 1, is characterized in that: the described first lens collar is fixed on pedestal by laser bonding mode.
3. the lens combination for single-mode laser coupling according to claim 1, is characterized in that: described hollow sliding accessory is connected with the second lens collar with the first lens collar by laser bonding mode.
4. the lens combination for single-mode laser coupling according to claim 1, is characterized in that: by metallic glass one-shot forming between described first lens and the first lens collar and between the second lens and the second lens collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312904.3A CN103364897B (en) | 2013-07-24 | 2013-07-24 | For the lens combination of single-mode laser coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312904.3A CN103364897B (en) | 2013-07-24 | 2013-07-24 | For the lens combination of single-mode laser coupling |
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| Publication Number | Publication Date |
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| CN103364897A CN103364897A (en) | 2013-10-23 |
| CN103364897B true CN103364897B (en) | 2015-08-12 |
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| CN201310312904.3A Active CN103364897B (en) | 2013-07-24 | 2013-07-24 | For the lens combination of single-mode laser coupling |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730599B (en) | 2017-07-19 | 2021-07-09 | 苏州旭创科技有限公司 | Optical module |
| CN110658599B (en) | 2017-07-19 | 2024-04-02 | 苏州旭创科技有限公司 | Optical module |
| CN116449510A (en) * | 2017-07-19 | 2023-07-18 | 苏州旭创科技有限公司 | Optical module |
| CN108429127A (en) * | 2018-05-03 | 2018-08-21 | 无锡厦泰生物科技有限公司 | A kind of Modular, semiconductor laser module |
| CN110261973A (en) * | 2019-06-26 | 2019-09-20 | 成都优博创通信技术股份有限公司 | Laser module and optical communication equipment |
Citations (6)
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| US5108167A (en) * | 1990-07-16 | 1992-04-28 | Rockwell International Corporation | Method and apparatus for obtaining a simplified electro-optical signal coupling system |
| CN2293794Y (en) * | 1997-04-28 | 1998-10-07 | 中国科学技术大学 | Adjustable semi-conductor laser collimation head |
| US6253004B1 (en) * | 1998-07-11 | 2001-06-26 | Korea Advanced Institute Of Science And Technology | Optical interconnection structure for enlarging alignment tolerance |
| CN2544473Y (en) * | 2002-05-24 | 2003-04-09 | 台达电子工业股份有限公司 | Light collecting/transmitting module |
| CN101414059A (en) * | 2008-11-28 | 2009-04-22 | 深圳市世纪人无线通讯设备有限公司 | Light beam collimation method and device |
| CN203396987U (en) * | 2013-07-24 | 2014-01-15 | 苏州旭创科技有限公司 | Lens group for monomode laser coupling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2439042Y (en) * | 2000-09-13 | 2001-07-11 | 欣技资讯股份有限公司 | Improvement of double-lens unit |
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2013
- 2013-07-24 CN CN201310312904.3A patent/CN103364897B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5108167A (en) * | 1990-07-16 | 1992-04-28 | Rockwell International Corporation | Method and apparatus for obtaining a simplified electro-optical signal coupling system |
| CN2293794Y (en) * | 1997-04-28 | 1998-10-07 | 中国科学技术大学 | Adjustable semi-conductor laser collimation head |
| US6253004B1 (en) * | 1998-07-11 | 2001-06-26 | Korea Advanced Institute Of Science And Technology | Optical interconnection structure for enlarging alignment tolerance |
| CN2544473Y (en) * | 2002-05-24 | 2003-04-09 | 台达电子工业股份有限公司 | Light collecting/transmitting module |
| CN101414059A (en) * | 2008-11-28 | 2009-04-22 | 深圳市世纪人无线通讯设备有限公司 | Light beam collimation method and device |
| CN203396987U (en) * | 2013-07-24 | 2014-01-15 | 苏州旭创科技有限公司 | Lens group for monomode laser coupling |
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| CN103364897A (en) | 2013-10-23 |
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Address after: 265705 Zhongyuan Industrial Park, Longkou City, Yantai, Shandong Province, North China Road, Zhongnan Industrial Park, and North Third Road intersection No. 1, Zhongxu Xu Chuang Limited by Share Ltd Patentee after: InnoLight Technology (Suzhou) Ltd. Address before: 215021 Creative Industry Park 12-A3, 328 Xinghu Street, Suzhou City Park, Jiangsu Province Patentee before: InnoLight Technology (Suzhou) Ltd. |
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Address after: 215000 No.8 Xiasheng Road, Suzhou Industrial Park, Jiangsu Province Patentee after: InnoLight Technology (Suzhou) Ltd. Address before: 265705 Zhongyuan Industrial Park, Longkou City, Yantai, Shandong Province, North China Road, Zhongnan Industrial Park, and North Third Road intersection No. 1, Zhongxu Xu Chuang Limited by Share Ltd Patentee before: InnoLight Technology (Suzhou) Ltd. |
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Effective date of registration: 20220113 Address after: 25 Singapore International Business Park, German Center, 03-60b Patentee after: Xuchuang Technology Co.,Ltd. Address before: 215000 No.8 Xiasheng Road, Suzhou Industrial Park, Jiangsu Province Patentee before: InnoLight Technology (Suzhou) Ltd. |