CN102338909A - Optical splitting joint detector - Google Patents
Optical splitting joint detector Download PDFInfo
- Publication number
- CN102338909A CN102338909A CN2011103349491A CN201110334949A CN102338909A CN 102338909 A CN102338909 A CN 102338909A CN 2011103349491 A CN2011103349491 A CN 2011103349491A CN 201110334949 A CN201110334949 A CN 201110334949A CN 102338909 A CN102338909 A CN 102338909A
- Authority
- CN
- China
- Prior art keywords
- optical
- lens
- header detector
- tapoff
- sealing cap
- 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.)
- Pending
Links
Images
Abstract
The invention relates to an optical splitting joint detector comprising a dual-core contact pin, a collimating lens, a transistor shape sealing cap, an optical detection chip and a transistor shape seat which are sequentially arranged, wherein a diaphragm is arranged between the collimating lens and the transistor shape sealing cap. The optical splitting joint detector has very strong directivity, very low dark current and higher detection precision.
Description
Technical field
The present invention relates to a kind of optical tapoff header detector, this optical tapoff header detector has high directivity, belongs to the communications field.
Background technology
In order to monitor and measure the luminous power of the light signal of in optical fiber, propagating; Optical tap tap commonly used tells the sub-fraction 1%～10% of signal through optical fiber; And with this part and photodetector coupling, the electric current that this photodetector produces is represented the total optical power of the contained light signal of optical fiber.When the total optical power of finding light signal was not in the desired scope of system, the total optical power that the adjustment flashlight is set through regulating variable optical attenuator was in the desired scope of system.
The optical tapoff header detector structure that prior art exists is as shown in Figure 1, and light gets into the collimation lens 3 that is coated with spectro-film from input optical fibre 1 incident of twin-core contact pin 2; The reflection of part light; From output optical fibre 10 outgoing of twin-core contact pin 2, another part light gets into the ball window 11 via transistor outline sealing cap 7, is injected on the photodetection chip 8; Photodetection chip 8 is transformed into electric signal to light signal, by the pin output of transistor outline stand 9
The optical tapoff header detector of prior art; Directivity is not fine, advances light or returns next light through collimation lens 3, behind the ball window 11 on the transistor outline sealing cap 7 from output optical fibre 10; Can be injected on the photodetection chip 8, it is not very accurate causing detector to be surveyed so yet.
Summary of the invention
The object of the invention is exactly to overcome the problem and shortage that prior art exists, and a kind of optical tapoff header detector with high directivity is provided.
The technical scheme that the present invention adopted is:
A kind of optical tapoff header detector comprises by the twin-core contact pin, collimation lens, transistor outline sealing cap, and the photodetection chip, the transistor outline stand is arranged in order setting, is provided with diaphragm between said collimation lens and the transistor outline sealing cap.
Be provided with convergent lens between said collimation lens and the diaphragm.
Said convergent lens is Grin lens or C lens.
Said collimation lens is Grin lens or C lens
A kind of optical tapoff header detector involved in the present invention has the following advantages:
1, optical tapoff header detector of the present invention has very high directivity, very low dark current;
2, optical tapoff header detector of the present invention has higher detection accuracy.
Description of drawings
The optical tapoff header detector structure of Fig. 1, prior art;
Fig. 2, optical tapoff header detector structure of the present invention.
Wherein:
1, input optical fibre; 2, twin-core contact pin;
3, collimation lens; 4, convergent lens;
5, diaphragm; 6, glass optical window;
7, transistor outline sealing cap; 8, photodetection chip;
9, transistor outline stand; 10, output optical fibre;
11, ball window;
Embodiment
Below in conjunction with embodiment and accompanying drawing a kind of optical tapoff header detector of the present invention is made detailed description.
A kind of optical tapoff header detector of the present invention as shown in Figure 2; Comprise twin-core contact pin 2, collimation lens 3, convergent lens 4, diaphragm 5, transistor outline sealing cap 7, photodetection chip 8; Transistor outline stand 9 is arranged in order setting; Be coated with spectro-film on the said collimation lens 3, said transistor outline sealing cap is provided with glass optical window 6 for 7 li, and this glass optical window 6 is at diaphragm 5 rears.The tail end of twin-core contact pin 2 has two fibers, i.e. input optical fibre 1 and output optical fibre 10.Collimation lens 3 can adopt Grin lens or C lens, and convergent lens 4 can adopt Grin lens or C lens.
The two-phonon process that a kind of optical tapoff header detector of the present invention is realized is specific as follows: light is from input optical fibre 1 incident of twin-core contact pin 2; Entering is coated with the collimation lens 3 of spectro-film; The reflection of part light is from output optical fibre 10 outgoing of twin-core contact pin 2, after another part light entering convergent lens 4 is assembled, through diaphragm 5; Glass optical window 6 via 7 li of transistor outline sealing caps; Be injected on the photodetection chip 8, photodetection chip 8 is transformed into electric signal to light signal, by the pin output of transistor outline stand 9.
A kind of optical tapoff header detector of the present invention; Optical tapoff header detector with prior art is compared; Increase convergent lens 4 in collimation lens 3 back, light is assembled more, can use the photodetection chip of littler photosurface like this; Photodetection chip photosurface diameter can reach 75 microns, thereby reduces the influence of dark current.Diaphragm 5 is set before photodetection chip 8, can have weakened unnecessary light greatly and get into photodetection chip 8, thereby improved the directivity of optical tap detector.
Suppose that from input optical fibre 1 incident, the light intensity that detector detects is I1, from 10 incidents of outgoing optical fiber, the light intensity that detector detects is I2, and then directivity is-10*log (I2/I1).Generally in 10dB, the optical tapoff header detector directivity of technical scheme of the present invention is greater than 25dB for the optical tapoff header detector directivity of prior art.
Though in conjunction with various embodiment with described for example that the present invention instructed, and do not mean that these embodiment of being limited to that the present invention instructs.On the contrary, the present invention instructed comprises that it should be appreciated by one skilled in the art that various substitute, change and are equal to embodiment.
Claims (4)
1. optical tapoff header detector; Comprise by twin-core contact pin (2) collimation lens (3), transistor outline sealing cap (7), photodetection chip (8); Transistor outline stand (9) is arranged in order setting, it is characterized in that: be provided with diaphragm (5) between said collimation lens (3) and the transistor outline sealing cap (7).
2. a kind of optical tapoff header detector as claimed in claim 1 is characterized in that: be provided with convergent lens (4) between said collimation lens (3) and the diaphragm (5).
3. a kind of optical tapoff header detector as claimed in claim 2 is characterized in that: said convergent lens (4) is Grin lens or C lens.
4. a kind of optical tapoff header detector as claimed in claim 1 is characterized in that: said collimation lens (3) is Grin lens or C lens
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103349491A CN102338909A (en) | 2011-10-28 | 2011-10-28 | Optical splitting joint detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103349491A CN102338909A (en) | 2011-10-28 | 2011-10-28 | Optical splitting joint detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102338909A true CN102338909A (en) | 2012-02-01 |
Family
ID=45514733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103349491A Pending CN102338909A (en) | 2011-10-28 | 2011-10-28 | Optical splitting joint detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102338909A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529524A (en) * | 2013-10-21 | 2014-01-22 | 重庆航伟光电科技有限公司 | Optical signal receiving detector and manufacturing method thereof |
| CN104819772A (en) * | 2014-01-09 | 2015-08-05 | 赫拉胡克公司 | Sensor apparatus, in particular for detecting ambient conditions of a motor vehicle |
| CN109814214A (en) * | 2019-04-11 | 2019-05-28 | 武汉英飞光创科技有限公司 | A kind of optical device and collimated light beam positioning system |
| CN110333563A (en) * | 2018-03-28 | 2019-10-15 | 福州高意光学有限公司 | A kind of production method of optical diaphragm |
| WO2020000775A1 (en) * | 2018-06-29 | 2020-01-02 | 昂纳信息技术（深圳）有限公司 | Compact tap pd |
| CN110823362A (en) * | 2019-09-10 | 2020-02-21 | 李东华 | High beam detection system and detection method thereof |
| CN110823363A (en) * | 2019-09-10 | 2020-02-21 | 李东华 | Automobile light detection system and detection method thereof |
| CN111290087A (en) * | 2020-03-30 | 2020-06-16 | 武汉光谷信息光电子创新中心有限公司 | Light splitting detector |
| WO2023273625A1 (en) * | 2021-06-29 | 2023-01-05 | 华为技术有限公司 | Optical module and network device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200941116Y (en) * | 2006-07-10 | 2007-08-29 | 武汉大学 | Device for compressing dynamic range of laser radar singnlas |
| WO2009055903A1 (en) * | 2007-10-29 | 2009-05-07 | National Research Council Of Canada | Method and apparatus for detecting fluorescence emitted by particle-bound fluorophores confined by particle traps |
| CN102004086A (en) * | 2010-11-03 | 2011-04-06 | 中航华东光电有限公司 | Portable mirror reflection measuring device |
-
2011
- 2011-10-28 CN CN2011103349491A patent/CN102338909A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200941116Y (en) * | 2006-07-10 | 2007-08-29 | 武汉大学 | Device for compressing dynamic range of laser radar singnlas |
| WO2009055903A1 (en) * | 2007-10-29 | 2009-05-07 | National Research Council Of Canada | Method and apparatus for detecting fluorescence emitted by particle-bound fluorophores confined by particle traps |
| CN102004086A (en) * | 2010-11-03 | 2011-04-06 | 中航华东光电有限公司 | Portable mirror reflection measuring device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529524A (en) * | 2013-10-21 | 2014-01-22 | 重庆航伟光电科技有限公司 | Optical signal receiving detector and manufacturing method thereof |
| CN104819772A (en) * | 2014-01-09 | 2015-08-05 | 赫拉胡克公司 | Sensor apparatus, in particular for detecting ambient conditions of a motor vehicle |
| CN104819772B (en) * | 2014-01-09 | 2019-06-04 | 赫拉胡克公司 | In particular for the sensor device of the environmental condition of detection motor vehicles |
| CN110333563A (en) * | 2018-03-28 | 2019-10-15 | 福州高意光学有限公司 | A kind of production method of optical diaphragm |
| CN110333563B (en) * | 2018-03-28 | 2021-11-02 | 福州高意光学有限公司 | Manufacturing method of optical diaphragm |
| WO2020000775A1 (en) * | 2018-06-29 | 2020-01-02 | 昂纳信息技术（深圳）有限公司 | Compact tap pd |
| CN109814214A (en) * | 2019-04-11 | 2019-05-28 | 武汉英飞光创科技有限公司 | A kind of optical device and collimated light beam positioning system |
| CN110823362A (en) * | 2019-09-10 | 2020-02-21 | 李东华 | High beam detection system and detection method thereof |
| CN110823363A (en) * | 2019-09-10 | 2020-02-21 | 李东华 | Automobile light detection system and detection method thereof |
| CN111290087A (en) * | 2020-03-30 | 2020-06-16 | 武汉光谷信息光电子创新中心有限公司 | Light splitting detector |
| WO2023273625A1 (en) * | 2021-06-29 | 2023-01-05 | 华为技术有限公司 | Optical module and network device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102338909A (en) | Optical splitting joint detector | |
| CN101826700A (en) | 2 mu m single mode fiber collimator with high coupling efficiency for semiconductor laser | |
| CN102621558A (en) | Laser radar visibility meter and transceiving coaxial optical system thereof | |
| CN103730822A (en) | Ultrashort pulse optical fiber laser system | |
| CN203551774U (en) | A laser range finder calibration system | |
| CN103424749B (en) | A kind of Full-optical-fiber laser radar visibility meter | |
| CN209280994U (en) | A kind of the variable optical attenuation device and system of integrated light splitting detecting function | |
| CN204947313U (en) | Multichannel array fiber laser | |
| CN201100946Y (en) | Optical power photoelectric detector | |
| CN201616584U (en) | Structure for monitoring power of fiber-coupled laser at visible light wave band | |
| CN102042876B (en) | Remote online spectrum detection system | |
| US10782206B2 (en) | Encircled flux compliant test apparatus | |
| CN108387974A (en) | High-power optical fiber laser receiving and transmitting integrated end cap | |
| CN203037895U (en) | Self-focusing lens fiber | |
| CN205157847U (en) | Luminous power photoelectric detector that area keeps apart | |
| CN202305011U (en) | Light tap detector | |
| CN105449497A (en) | Multifunctional optical fiber device with isolation, filtering and coupling | |
| CN203690694U (en) | Ultrashort pulse fiber laser system | |
| CN204758878U (en) | But adjustable optical attenuator that plug can be monitored | |
| CN104297846A (en) | Light sampling device based on multimode fiber receiving and single mode fiber transmission | |
| CN210863777U (en) | Large depth-of-field optical antenna device applied to optical fiber Doppler velocimeter | |
| CN103323105B (en) | Unidirectional spectrophotometric detector and manufacture method thereof | |
| CN209280920U (en) | A kind of laser radar reception device and laser radar based on fiber coupling | |
| CN204116646U (en) | A kind of integrated light splitting coupling optical components | |
| CN208076758U (en) | High-power optical fiber laser receiving and transmitting integrated end cap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |