CN201569492U - Instrument for detecting optical fiber field distribution - Google Patents
Instrument for detecting optical fiber field distribution Download PDFInfo
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- CN201569492U CN201569492U CN2009200936340U CN200920093634U CN201569492U CN 201569492 U CN201569492 U CN 201569492U CN 2009200936340 U CN2009200936340 U CN 2009200936340U CN 200920093634 U CN200920093634 U CN 200920093634U CN 201569492 U CN201569492 U CN 201569492U
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- optical fiber
- converter tube
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- image converter
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Abstract
The utility model relates to an instrument for detecting in a real time manner and displaying optical fiber field distribution, which is also suitable for testing the parameters of a semi-conductor laser beam, and belongs to the technical field of laser optical field test. The key point of the utility model is that an image converter tube is additionally adopted in the instrument, which has the advantages that the detection area is large, light spectrum receiving range can be extended conveniently by changing image converter tube accessories with different wave bands, and images that human eyes can observe directly in an undistorted manner can be obtained. In the scheme, observable images can be obtained twice, a first-time direct image in a full view field angle on the light beam cross section is obtained at the output terminal of the image converter tube; and a second-time direct image is displayed on a display after CCD camera shooting and computer processing. The device adopts the structure that a to-be-detected light source clamp, a vertical horizontal tilt angle micro-adjust rack, a to-be-detected light source, a light attenuation system, the image converter tube, and the CCD camera are placed on an axial line sequentially; acquired picture signals are input into the computer for processing; the luminous power distribution image containing the numerical aperture, the light beam profile and the luminous power of an optical fiber is obtained, and the quality factor and the energy parameters of a semiconductor laser are tested and displayed; and the device is particularly suitable for on-line detection during fiber coupling process. When additional optical systems are arranged between the light attenuation system and the image converter tube, the near-field information of optical field distribution of the surface of a semi-conductor laser cavity is observed. The utility model is particularly suitable for recording the catastrophe processes of laser devices.
Description
Technical field
The utility model relates to a kind of optical fiber optical field distribution and detects in real time and display device, also is fit to the test of semiconductor laser beam parameter simultaneously, belongs to the laser light field technical field of measurement and test.
Background technology
At present, known optical fiber analyser all is the instrument that characterizes the angle radiation intensity of light.The for example external FiberAlyzer optical fiber analyser of producing, total system comprises independently operating console, an optical fibre packages, can connect outside VGA display screen, adopt detector or CCD camera directly the laser scanning of fiber port to be surveyed, on display screen, obtain Optical Fiber Numerical Aperture, beam profile and luminous power.The detection area of common this detector is less, in implementing detection, because the restriction of light beam receiving angle is inconvenient to survey; For the optical fiber analyser that adds optical lens expansion receiving area, then introduced aberration, the distortion that light beam produces exists uncertain, has influence on the image measurement effect.
Summary of the invention
In order to overcome the deficiency that existing optical fiber analyser exists, the utility model provides a kind of optical fiber optical field distribution to detect and the display instrument device in real time, has introduced image converter tube.Image converter tube has big detection area, changes the image converter tube annex of different-waveband and can expand the spectrum range of receiving easily, the image that distortionless acquisition human eye can directly be observed.In the utility model scheme, can obtain the may observe image twice, obtain the direct imaging first time that the full field angle of beam cross section shows at the image converter tube output terminal.Taken by the CCD camera, the input Computer Processing shows imaging for the second time by display again.Motorized precision translation stage moves under computer program control, can intercept the image of light beam diverse location, and machine is handled numerical aperture, beam profile and the luminous power that can obtain optical fiber as calculated.When being used for semiconductor laser device and measuring, can also obtain near, the far field distribute power, quality factor of semiconductor laser etc.When being used for the coupling of semiconductor laser and optical fiber,, obtain the optimum coupling effect according to the coupled optical power that shows and the symmetric case of optical field distribution image.
The technical scheme that its technical matters that solves the utility model adopts is: laser beam is projected on the image converter tube receiving plane, image converter tube was with 1: 1 ratio, distortionless exploring laser light is converted to visible light, shows in real time, finish direct imaging for the first time at the image converter tube output end face.Be input to Computer Processing by optical field distribution in the output face of CCD camera shooting image converter tube again, realize imaging for the second time.Software systems control motorized precision translation stage is set step direction, step-length, step number, hold-up time, can obtain the image of diverse location.Image data transmission is given computing machine, and the Computer Image Processing program calculates the information that image comprises according to the actual measurement hot spot, and simulates two dimension, three-dimensional curve, provides measurement parameter and demonstration in real time.
On the such scheme basis, between semiconductor laser chamber face and image converter tube receiving plane, add optical system, can obtain laser cavity surface optical field distribution (near field) information.Observation device light-emitting zone size shape and the sharp state of penetrating cooperate the device aging test, timing cut-away view picture, and registering device catastrophe process is used for the device quality assessment.The below of optical system is furnished with the one dimension micro-adjusting mechanism, is used to adjust imaging effect, and this micro-tensioning system also can be positioned over measured light anchor clamps below, can realize adjusting the purpose of imaging effect equally.
The beneficial effects of the utility model are, but measuring optical fiber and laser instrument light field parameter have the real-time Presentation Function of the asymmetric laser fidelity of large tracts of land; Select the image converter tube of different-waveband for use, improve the spectrum range of receiving of common CCD camera; Observation optical field distribution figure and luminous power registration can observe optical fiber and laser instrument coupling situation clearly, realize coupling work fast and intuitively; Noise spectra of semiconductor lasers chamber face light field real-time monitored, catastrophe process that can registering device.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.Fig. 1 is a structural drawing of the present utility model.1. bases among the figure, the 2.CCD camera, 3. image converter tube, 4. high-voltage power supply, 5. optical system, 6. optical attenuation system, 7. measured light anchor clamps and vertical-horizontal inclination angle trimming regulating are whole, 8. motor, 9 motorized precision translation stages, the 10. removable support of optical system, 11. manual translation platforms.
Embodiment
Embodiment one: in Fig. 1, comprise fibre-optical splice or laser instrument socket in the measured light anchor clamps (7), optical fiber or laser instrument are inserted, through optical attenuation system (6), fiber end face laser beam or semiconductor laser beam are projected on image converter tube (3) receiving plane, image converter tube (3) is converted to visible light with exploring laser light, CCD camera (2) is taken the image of image converter tube (3), CCD camera (2), image converter tube (3), high-voltage power supply (4) is installed on the motorized precision translation stage (9), translation stage (9) is under computer program control, fixed step size moves, obtain the image of light source different distance, and give Computer Processing, obtain the numerical aperture of optical fiber image data transmission, beam profile and luminous power, can also obtain the far field power profile of semiconductor laser, quality factor, energy etc. show in real time through display screen.Optical attenuation system (6) can repeat to be placed on the diverse location of light path.Measured light anchor clamps (7) are designed to standard fiber and semiconductor laser packing forms, and the laser instrument pin has the driving power socket, and optical fiber and laser instrument can be selected to measure.
Embodiment two: in Fig. 1, the measured light anchor clamps comprise the laser instrument socket in (7), semiconductor laser is inserted, through optical attenuation system (6), by optical system (5), the films on cavity surfaces of semiconductor lasers laser near-field is imaged onto on image converter tube (3) receiving plane, image converter tube (3) is converted to visible light with exploring laser light, CCD camera (2) is taken the image of image converter tube (3), CCD camera (2), image converter tube (3), high-voltage power supply (4) is installed on the motorized precision translation stage (9), adjust optical system (5) focal length, it is clear to make it imaging, under computer program control, and timing cut-away view picture, obtain the distributed intelligence of laser cavity surface laser near-field, machine is handled and is sent display screen to show in real time as calculated.
Claims (4)
1. optical fiber optical field distribution detector, on an axis, put into measured light anchor clamps and vertical-horizontal inclination angle trimming regulating whole (7), optical attenuation system (6), optical system (5), CCD camera (2) successively, image is delivered to Computer Processing and is shown that it is characterized in that: image converter tube (3) is positioned over CCD camera (2) before.
2. a kind of optical fiber optical field distribution detector according to claim 1, it is characterized in that: motorized precision translation stage (9) is gone up and is placed high-voltage power supply (4), image converter tube (3), CCD camera (2), and motorized precision translation stage is direction initialization, step-length, step number, hold-up time under computer control.
3. a kind of optical fiber optical field distribution detector according to claim 1, it is characterized in that: the measured light jig Design becomes applicable various standard fiber and semiconductor laser packing forms, the laser instrument pin has the driving power socket, and optical fiber and laser instrument can be selected to measure.
4. a kind of optical fiber optical field distribution detector according to claim 1 is characterized in that: the one dimension micro-adjusting mechanism of the removable support of optical system (10) below is placed on measured light anchor clamps and whole (7) below of vertical-horizontal inclination angle trimming regulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200936340U CN201569492U (en) | 2009-05-15 | 2009-05-15 | Instrument for detecting optical fiber field distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200936340U CN201569492U (en) | 2009-05-15 | 2009-05-15 | Instrument for detecting optical fiber field distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569492U true CN201569492U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200936340U Expired - Fee Related CN201569492U (en) | 2009-05-15 | 2009-05-15 | Instrument for detecting optical fiber field distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201569492U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542931A (en) * | 2013-09-22 | 2014-01-29 | 北京工业大学 | Method for transmission light field quantitative analysis and test of light-transmitting concrete material |
| CN104535177A (en) * | 2014-12-29 | 2015-04-22 | 苏州优谱德精密仪器科技有限公司 | Detection device for measuring near-infrared light numerical aperture |
| CN107478660A (en) * | 2017-09-14 | 2017-12-15 | 中国石油大学(北京) | A kind of optical fiber quality detecting system and method |
| CN108827603A (en) * | 2018-09-03 | 2018-11-16 | 深圳市杰普特光电股份有限公司 | Semiconductor laser numerical aperture automatic test equipment and method |
| CN109682576A (en) * | 2017-10-19 | 2019-04-26 | 深圳光峰科技股份有限公司 | Light source hot spot detection method and detection device |
| CN110082077A (en) * | 2019-06-19 | 2019-08-02 | 无锡奥普特自动化技术有限公司 | Fiber numerical aperture measuring instrument |
| CN112763184A (en) * | 2020-12-23 | 2021-05-07 | 中国人民解放军国防科技大学 | Gain optical fiber absorption coefficient measuring device and method based on side scattering light detection |
| CN113532637A (en) * | 2020-04-20 | 2021-10-22 | 山东华光光电子股份有限公司 | Adapter capable of monitoring numerical aperture and power of light spot and manufacturing and using method thereof |
-
2009
- 2009-05-15 CN CN2009200936340U patent/CN201569492U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542931A (en) * | 2013-09-22 | 2014-01-29 | 北京工业大学 | Method for transmission light field quantitative analysis and test of light-transmitting concrete material |
| CN104535177A (en) * | 2014-12-29 | 2015-04-22 | 苏州优谱德精密仪器科技有限公司 | Detection device for measuring near-infrared light numerical aperture |
| CN107478660A (en) * | 2017-09-14 | 2017-12-15 | 中国石油大学(北京) | A kind of optical fiber quality detecting system and method |
| CN107478660B (en) * | 2017-09-14 | 2023-11-03 | 中国石油大学(北京) | Optical fiber quality detection system and method |
| CN109682576A (en) * | 2017-10-19 | 2019-04-26 | 深圳光峰科技股份有限公司 | Light source hot spot detection method and detection device |
| CN108827603A (en) * | 2018-09-03 | 2018-11-16 | 深圳市杰普特光电股份有限公司 | Semiconductor laser numerical aperture automatic test equipment and method |
| CN110082077A (en) * | 2019-06-19 | 2019-08-02 | 无锡奥普特自动化技术有限公司 | Fiber numerical aperture measuring instrument |
| CN110082077B (en) * | 2019-06-19 | 2024-05-28 | 无锡奥普特自动化技术有限公司 | Optical fiber numerical aperture measuring instrument |
| CN113532637A (en) * | 2020-04-20 | 2021-10-22 | 山东华光光电子股份有限公司 | Adapter capable of monitoring numerical aperture and power of light spot and manufacturing and using method thereof |
| CN112763184A (en) * | 2020-12-23 | 2021-05-07 | 中国人民解放军国防科技大学 | Gain optical fiber absorption coefficient measuring device and method based on side scattering light detection |
| CN112763184B (en) * | 2020-12-23 | 2023-08-29 | 中国人民解放军国防科技大学 | Gain fiber absorption coefficient measuring device and method based on side scattered light detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20120515 |