CN203773100U - TO-CAN laser assembly - Google Patents
TO-CAN laser assembly Download PDFInfo
- Publication number
- CN203773100U CN203773100U CN201420132429.1U CN201420132429U CN203773100U CN 203773100 U CN203773100 U CN 203773100U CN 201420132429 U CN201420132429 U CN 201420132429U CN 203773100 U CN203773100 U CN 203773100U
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- China
- Prior art keywords
- laser
- light beam
- laser assembly
- hole
- funnel
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- Expired - Fee Related
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Abstract
The utility model provides a TO-CAN laser assembly comprising a laser diode equipped with a pipe cap ball lens, a metallic pipe seat, an axial adjustable ring, an adapter metallic sleeve, and a ceramic sleeve. A funnel-shaped central hole is arranged on the front end of the ceramic sleeve. A through hole matching an external fiber connector is arranged on the rear end of the ceramic sleeve. A light beam emitted from a laser chip of the laser diode is transformed to a converged light beam by the pipe cap ball lens and the converged light beam is transmitted to from a large hole to a small hole of the funnel-shaped central hole. The converged light beam is outputted by the external fiber connector. According to the TO-CAN laser assembly with above structure, the front end of the ceramic sleeve is directly made as the funnel-shaped central hole; the light beam emitted from the laser chip of the laser diode is transmitted from the large hole of the funnel-shaped central hole to the small hole of the funnel-shaped central hole; and the light beam is converged to the small hole and is outputted by the external fiber connector. The TO-CAN laser assembly eliminates a ceramic core element with high price in a TO-CAN laser assembly with conventional structure so as to reduce the material cost of the whole laser assembly and achieve simple structure.
Description
Technical field
The utility model relates to the TO-CAN laser assembly that Optical Fiber Transmission is used.
Background technology
TO-CAN laser assembly is widely used in optical communication system.TO-CAN laser assembly is to be made up of the TO-CAN laser instrument and the coupling fiber adapter that are installed in metal base.The optical fiber interface of coupling fiber adapter needs accurate optically-coupled to aim at and can realize with the fiber connector fibre core end face of Exterior Communications System and repeatedly repeats plug, therefore have relatively high expectations for coupling fiber adapter structure, be also the important component part of whole TO-CAN laser assembly cost simultaneously.At present, TO-CAN laser assembly, as shown in Figure 1, comprise: laser diode 1, metal base 2, an adapter metal sleeve 3, a ceramic sleeve 4 and an optical fiber ceramic lock pin 5, first optical fiber ceramic lock pin 5 is fixed in adapter metal sleeve 3 after utilizing glue to be fixed on ceramic sleeve 4 again, laser diode 1 is through after optical fiber ceramic lock pin 5 carries out optically-coupled and regulates and aims at, and the metal base 2 of adapter metal sleeve 3 by Laser Welding (LBW) and laser diode 1 fixed.This structure TO-CAN laser assembly, the contact engaging and separating force between its coupling fiber adapter and external fiber connector is guaranteed, and plug repeatability is also relatively good, but adopts optical fiber ceramic lock pin 5, complex structure, cost is high.
Summary of the invention
It is a kind of simple in structure that the utility model provides, the TO-CAN laser assembly that cost is low.
For reaching above goal of the invention, the utility model provides a kind of TO-CAN laser assembly, comprise: laser diode, a metal base, an axial adjustment ring, an adapter metal sleeve, a ceramic sleeve with pipe cap globe lens, this ceramic sleeve front end is provided with an infundibulate center pit, rear end is provided with the through hole suitable with external fiber connector, wherein, the laser chip transmitting light beam of laser diode becomes and converges light through pipe cap globe lens, macropore by described infundibulate center pit is incident to aperture, and converging beam is exported by external fiber connector.
The about 2.5mm of infundibulate center pit height of described ceramic sleeve, the diameter of aperture is 0.20～2.4mm.
The TO-CAN laser assembly of said structure, adopt and directly ceramic sleeve front end is offered into and had infundibulate center pit, the chip transmitting light beam of laser diode is incident to aperture by the macropore of infundibulate center pit, and light beam is converged to aperture by pipe cap globe lens, exported by external fiber connector.Save the ceramic insertion core element that in traditional structure, price is higher, thereby reduced the material cost of whole laser assembly, and simple in structure.
Brief description of the drawings
Fig. 1 represents the TO-CAN laser assembly of prior art;
Fig. 2 represents the utility model TO-CAN laser assembly.
Embodiment
Describe the utility model most preferred embodiment in detail below in conjunction with accompanying drawing.
TO-CAN laser assembly as shown in Figure 2, comprise: laser diode 10, a metal base 20, an axial adjustment ring 30, an adapter metal sleeve 40, a ceramic sleeve 50 with pipe cap globe lens 11, these ceramic sleeve 50 front ends are provided with an infundibulate center pit 51, rear end is provided with the through hole 52 suitable with external fiber connector, wherein, the laser chip 12 of laser diode 10 is launched light beam and is become and converge light through pipe cap globe lens 11, macropore 5101 by described infundibulate center pit 51 is incident to aperture 5102, and converging beam is exported by external fiber connector.Ceramic sleeve 50 inserts and in adapter metal sleeve 40, is press-fitted fastening or fixes with glue.The highly about 2.5mm of infundibulate center pit 51 of ceramic sleeve 50, the diameter of aperture 5102 is 0.20～2.4mm, is only greater than the core diameter of fiber connector.The macropore 5101 of its infundibulate center pit 51 is adjacent with the pipe cap globe lens 11 of described laser diode 10, when laser diode 10 is coupled and aligned adjusting with coupling fiber adapter, the focus of its pipe cap globe lens 11 is positioned at aperture 5102 centers of infundibulate center pit 51.Laser diode 10, a metal base 20, an axial adjustment ring 30, an adapter metal sleeve 40, fix by Laser Welding (LBW).
The TO-CAN laser assembly of said structure, adopt and directly ceramic sleeve 50 front ends are offered into and had infundibulate center pit 51, the chip 12 of laser diode 10 is launched light beam and is incident to aperture 5102 by the macropore 5101 of infundibulate center pit 51, light beam is converged to aperture 5102 by pipe cap globe lens 11, exported by external fiber connector.Save the ceramic insertion core element that in traditional structure, price is higher, thereby reduced the material cost of whole laser assembly, and simple in structure.
Claims (2)
1. a TO-CAN laser assembly, comprise: the laser diode (10) of a band pipe cap globe lens (11), one metal base (20), one axial adjustment ring (30), one adapter metal sleeve (40), ceramic sleeve (50), it is characterized in that, described ceramic sleeve (50) front end is provided with an infundibulate center pit (51), rear end is provided with the through hole suitable with external fiber connector (52), wherein, laser chip (12) the transmitting light beam of laser diode (10) becomes and converges light through pipe cap globe lens (11), macropore (5101) by described infundibulate center pit (51) is incident to aperture (5102), converging beam is exported by external fiber connector.
2. TO-CAN laser assembly according to claim 1, is characterized in that, the highly about 2.5mm of infundibulate center pit (51) of described ceramic sleeve (50), and the diameter of aperture (5102) is 0.20～2.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132429.1U CN203773100U (en) | 2014-03-22 | 2014-03-22 | TO-CAN laser assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132429.1U CN203773100U (en) | 2014-03-22 | 2014-03-22 | TO-CAN laser assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773100U true CN203773100U (en) | 2014-08-13 |
Family
ID=51290275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420132429.1U Expired - Fee Related CN203773100U (en) | 2014-03-22 | 2014-03-22 | TO-CAN laser assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773100U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445871A (en) * | 2015-12-28 | 2016-03-30 | 中国电子科技集团公司第八研究所 | Ultra-wide temperature active optical device packaging process |
| CN105842797A (en) * | 2016-06-21 | 2016-08-10 | 国网辽宁省电力有限公司锦州供电公司 | Engineering-used plastic optical fiber connector |
| CN106443909A (en) * | 2016-11-16 | 2017-02-22 | 中国电子科技集团公司第四十四研究所 | Avalanche detector coupling packaging structure |
| CN109188620A (en) * | 2018-09-29 | 2019-01-11 | 深圳市亚派光电器件有限公司 | Miniature laser device assembly and four-way optical module |
-
2014
- 2014-03-22 CN CN201420132429.1U patent/CN203773100U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445871A (en) * | 2015-12-28 | 2016-03-30 | 中国电子科技集团公司第八研究所 | Ultra-wide temperature active optical device packaging process |
| CN105842797A (en) * | 2016-06-21 | 2016-08-10 | 国网辽宁省电力有限公司锦州供电公司 | Engineering-used plastic optical fiber connector |
| CN106443909A (en) * | 2016-11-16 | 2017-02-22 | 中国电子科技集团公司第四十四研究所 | Avalanche detector coupling packaging structure |
| CN109188620A (en) * | 2018-09-29 | 2019-01-11 | 深圳市亚派光电器件有限公司 | Miniature laser device assembly and four-way optical module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20190322 |