CN106159654A - The laser diode system of the band tail optical fiber that a kind of novel instruction monitoring is dual-purpose - Google Patents
The laser diode system of the band tail optical fiber that a kind of novel instruction monitoring is dual-purpose Download PDFInfo
- Publication number
- CN106159654A CN106159654A CN201610642660.9A CN201610642660A CN106159654A CN 106159654 A CN106159654 A CN 106159654A CN 201610642660 A CN201610642660 A CN 201610642660A CN 106159654 A CN106159654 A CN 106159654A
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- Prior art keywords
- optical fiber
- instruction
- laser
- light
- beam splitter
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
- H01S3/10015—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by monitoring or controlling, e.g. attenuating, the input signal
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The laser diode system of the band tail optical fiber that a kind of novel instruction disclosed by the invention monitoring is dual-purpose, it is characterized in that, including an instruction visible light lasers dipolar object light source, one for reflection filter effect two to beam splitter, one photodetector for supervisory function bit and an optical fiber pigtail entering fiber ring laser system for coupling visible ray, the instruction light that described instruction visible light lasers dipolar object light source sends is totally reflected in described optical fiber pigtail to beam splitter by described two and is coupled in optical fiber laser, the reflection light of described optical fiber pigtail is directed through described two and arrives described photodetector to beam splitter, described photodetector real-time detection optical fiber laser is by the light intensity of optical fiber pigtail reflection light.The present invention can monitor the reflective light intensity of fiber ring laser system in real time thus reach to protect the effect of optical fiber laser.
Description
Technical field
The present invention relates to fiber laser technology field, monitor swashing of dual-purpose band tail optical fiber particularly to a kind of novel instruction
Near-infrafed photodiodes system.
Background technology
Along with optical fiber laser popularizing rapidly in various commercial Application, the fastest to the demand of the laser diode of band tail optical fiber
Speed increases.Owing to, after reflecting through various materials, HONGGUANG is the highest to the sensitivity of human eye, essentially all it is integrated into light
The wavelength of the instruction laser diode of the band tail optical fiber of fibre laser is all at 635-660nm.
The laser diode of the band tail optical fiber being integrated into optical fiber laser mainly has following two problem to need to consider: 1. reflection
The optical fiber laser signal the returned impact on the service life of laser diode；2. the return loss of laser diode is to optical fiber
The interference of laser instrument.
For avoiding the laser signal damage laser diode leaking through from optical fiber laser or reflecting, except swashing
Outside the anti-reflection film of near-infrafed photodiodes wavelength, the end face of tail optical fiber all must have the anti-plated film of height of optical fiber laser signal wavelength.Optical fiber swashs
The anti-plated film of height of light device signal wavelength further means that the return loss of optical fiber laser wavelength is relatively low, at tail optical fiber end face reflection light echo
The signal of fibre laser is higher, along with the improving constantly of output of optical fiber laser, anti-from laser diode tail optical fiber end face
The signal disturbing optical fiber laser being emitted back towards is properly functioning, and the probability even damaging optical fiber laser is also greatly increased.
Summary of the invention
The technical problem to be solved is to ask for the above-mentioned technology existing for existing laser diode system
Inscribe and provide a kind of novel instruction to monitor the laser diode system of dual-purpose band tail optical fiber, for the reflection of detecting laser system
Light, can in real time the reflective light intensity of monitoring laser system thus reach to protect the effect of laser instrument.
The technical problem to be solved can be achieved through the following technical solutions:
The laser diode system of the band tail optical fiber that a kind of novel instruction monitoring is dual-purpose, including an instruction visible light lasers
Dipolar object light source, one for reflection filter effect two to beam splitter, a photodetector and for supervisory function bit
The individual optical fiber pigtail entering fiber ring laser system for coupling visible ray, described instruction visible light lasers dipolar object light source is sent out
The instruction light gone out is totally reflected in described optical fiber pigtail to beam splitter by described two and is coupled in optical fiber laser, described light
The reflection light of fine tail optical fiber is directed through described two and arrives described photodetector, described photodetector real-time detection to beam splitter
Optical fiber laser is by the light intensity of optical fiber pigtail reflection light.
In a preferred embodiment of the invention, described instruction visible light lasers dipolar object light source can be answered according to reality
With selecting different-waveband, select wave band at 635-660nm HONGGUANG diode for industrial optical fiber laser instrument.
In a preferred embodiment of the invention, described two and refer to according to the wave band of optical fiber laser itself to beam splitter
Show and lead to type with instruction optical wavelength many selections long wave of visible light lasers dipolar object light source.
The present invention can monitor the reflective light intensity of fiber ring laser system in real time thus reach to protect the work of optical fiber laser
With.
The advantage of the laser diode system that the novel instruction of the present invention monitors dual-purpose band tail optical fiber is as follows:
1. the problem overcoming interference laser itself work that traditional coating process is brought, it is from optical fiber laser
The laser signal reflected can be directed through two and be accepted by photodetection to beam splitter, thus plays protection instruction laser two
Polar body extends the effect of working life.
2. avoid the return loss interference to optical fiber laser of laser diode.Due to returning of laser diode itself
The reflection light of the laser signal that ripple loss causes can be dissipated on external metallization fixture to beam splitter by two.
3. add monitoring optical fiber laser reflected signal function.Traditional visible light lasers diode only has indicated work
Can, the photodetector of the present invention can monitor optical fiber laser reflected signal and play the effect that protection laser instrument normally works.
4. contrast traditional band tail optical fiber laser diode.This structure uses more flexible, can change not according to actual needs
Coupled power is changed with the instruction laser diode of power, and without re-starting optical fiber welding.
5. cost performance is higher.The wave band of band tail optical fiber in the usual peak power of laser diode of 635-660nm is on the market
20mW, price is more than thousand yuan.And the laser diode structure of Novel belt tail optical fiber mentioned in this article, provide not only the highest defeated
Go out the probability of power, and owing to using free space coupling system, laser diode cost can as little as hundred yuan, and
And output can be up to hundreds of milliwatt.
The laser diode system of the band tail optical fiber that novel instruction monitoring proposed by the invention is dual-purpose overcomes traditional finger
Showing the signal disturbance problem brought with laser diode tail optical fiber plated film, and use more flexible, cost performance is higher, the most also increases
Add real-time monitoring and launched laser signal function, provide for fiber ring laser system and further protect.
Accompanying drawing explanation
Fig. 1 is the light path schematic diagram that a kind of novel instruction of the present invention monitors the laser diode system of dual-purpose band tail optical fiber.
Detailed description of the invention
Seeing Fig. 1, a kind of novel instruction shown in figure monitors the laser diode system of dual-purpose band tail optical fiber, including one
Individual instruction visible light lasers dipolar object light source 100, one is used for beam splitter 200, for the two of reflection filter effect
The photodetector 300 of supervisory function bit and an optical fiber pigtail 400 entering fiber ring laser system for coupling visible ray.
Instruction visible light lasers dipolar object light source 100 generally selects wave band λ 2 in 635-660nm HONGGUANG two according to application
Polar body, the instruction light that it sends passes through two and is totally reflected in optical fiber pigtail 400 to beam splitter 200 and is coupled into optical fiber laser
In (not shown), the wavelength of optical fiber pigtail 400 is that the reflection light of λ 1 is directed through described two and arrives photoelectricity to beam splitter 200
Detector 300, photodetector 300 real-time detection optical fiber laser reflects the light intensity of light by optical fiber pigtail 400, thus reaches
The effect of protection optical fiber laser
Two to beam splitter according to the wave band of optical fiber laser 200 itself and instruction visible light lasers dipolar object light source 100
Instruction optical wavelength many selections long wave lead to type.
Claims (3)
1. the laser diode system of the band tail optical fiber that novel instruction monitoring is dual-purpose, it is characterised in that include that an instruction is used
Visible light lasers dipolar object light source, one for reflection filter effect two to beam splitter, the photoelectricity for supervisory function bit
Detector and an optical fiber pigtail entering fiber ring laser system for coupling visible ray, described instruction visible light lasers two
The instruction light that polar body light source sends is totally reflected in described optical fiber pigtail to beam splitter by described two and is coupled into optical-fiber laser
In device, the reflection light of described optical fiber pigtail is directed through described two and arrives described photodetector, described smooth electrical resistivity survey to beam splitter
Survey the device real-time detection optical fiber laser intensity by optical fiber pigtail reflection light.
The laser diode system of the band tail optical fiber that a kind of novel instruction the most as claimed in claim 1 monitoring is dual-purpose, its feature exists
In, described instruction visible light lasers dipolar object light source selects wave band at 635-660nm HONGGUANG diode.
The laser diode system of the band tail optical fiber that a kind of novel instruction the most as claimed in claim 1 monitoring is dual-purpose, its feature exists
In, described two to beam splitter according to the wave band of optical fiber laser itself and the instruction light of instruction visible light lasers dipolar object light source
Wavelength many selections long wave leads to type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610642660.9A CN106159654B (en) | 2016-08-08 | 2016-08-08 | Novel dual-purpose laser diode system with tail fiber for indicating and monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610642660.9A CN106159654B (en) | 2016-08-08 | 2016-08-08 | Novel dual-purpose laser diode system with tail fiber for indicating and monitoring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106159654A true CN106159654A (en) | 2016-11-23 |
| CN106159654B CN106159654B (en) | 2021-12-03 |
Family
ID=57329246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610642660.9A Active CN106159654B (en) | 2016-08-08 | 2016-08-08 | Novel dual-purpose laser diode system with tail fiber for indicating and monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106159654B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001061A1 (en) * | 2020-07-01 | 2022-01-06 | 苏州创鑫激光科技有限公司 | Laser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185749A (en) * | 1990-09-18 | 1993-02-09 | The Board Of Trustee Of The Leland Stanford Junior University | Large signal three-level superfluorescent fiber sources |
| CN1641318A (en) * | 2005-01-07 | 2005-07-20 | 清华大学 | Optical fiber sensor based on laser feedback |
| CN203895741U (en) * | 2014-06-10 | 2014-10-22 | 吉林省科英激光技术有限责任公司 | Novel pulse Nd:YAG laser |
| CN104810711A (en) * | 2015-05-26 | 2015-07-29 | 中国工程物理研究院应用电子学研究所 | Indication light device for high-power all-optical fiber laser |
| CN205985731U (en) * | 2016-08-08 | 2017-02-22 | 光惠（上海）激光科技有限公司 | Novel instruct fine laser diode system of dual -purpose tape trailer of control |
-
2016
- 2016-08-08 CN CN201610642660.9A patent/CN106159654B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185749A (en) * | 1990-09-18 | 1993-02-09 | The Board Of Trustee Of The Leland Stanford Junior University | Large signal three-level superfluorescent fiber sources |
| CN1641318A (en) * | 2005-01-07 | 2005-07-20 | 清华大学 | Optical fiber sensor based on laser feedback |
| CN203895741U (en) * | 2014-06-10 | 2014-10-22 | 吉林省科英激光技术有限责任公司 | Novel pulse Nd:YAG laser |
| CN104810711A (en) * | 2015-05-26 | 2015-07-29 | 中国工程物理研究院应用电子学研究所 | Indication light device for high-power all-optical fiber laser |
| CN205985731U (en) * | 2016-08-08 | 2017-02-22 | 光惠（上海）激光科技有限公司 | Novel instruct fine laser diode system of dual -purpose tape trailer of control |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001061A1 (en) * | 2020-07-01 | 2022-01-06 | 苏州创鑫激光科技有限公司 | Laser |
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| Publication number | Publication date |
|---|---|
| CN106159654B (en) | 2021-12-03 |
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