CN103825170A - Random distributed feedback fiber laser based on semiconductor optical amplifier - Google Patents
Random distributed feedback fiber laser based on semiconductor optical amplifier Download PDFInfo
- Publication number
- CN103825170A CN103825170A CN201410076422.7A CN201410076422A CN103825170A CN 103825170 A CN103825170 A CN 103825170A CN 201410076422 A CN201410076422 A CN 201410076422A CN 103825170 A CN103825170 A CN 103825170A
- Authority
- CN
- China
- Prior art keywords
- fiber
- laser
- optical amplifier
- semiconductor optical
- optical fiber
- 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
Landscapes
- Lasers (AREA)
Abstract
The invention relates to a random distributed feedback fiber laser based on a semiconductor optical amplifier, belonging to the technical field of fiber lasers. The random distributed feedback fiber laser comprises an FC/APC (Ferrule Connector/Angled Polished Connector) optical fiber connector A, a fiber bragg grating, a semiconductor optical amplifier, a long-distance single mode fiber and an FC/APC optical fiber connector B, wherein the fiber bragg grating is used for providing strong feedback, the long-distance single mode fiber is used for providing random distributed rayleigh scattering feedback, and the semiconductor optical amplifier is used for providing gain amplification; and when the overall gain in the laser can counteract the total loss, the pumping threshold is reached and the random laser output is realized; and the driving current of the semiconductor optical amplifier is increased continuously to obtain stable laser output finally. The random distributed feedback fiber laser has the characteristics of low pumping threshold value, high conversion efficiency, simple structure and convenient operation, and can be suitable in the fields such as non-linear optics, remote optical fiber sensing, telecommunication and the like.
Description
Technical field
The present invention is specifically related to a kind of random-distribution feedback optical fiber laser of based semiconductor image intensifer, belongs to fiber laser technology field.
Background technology
Accidental laser is bringing into play in many applications the effect that conventional laser can not be substituted as a kind of microlaser of novelty, for example, as the light source of flat-panel screens, light source, the fluid detection flashlight etc. of microstructured optical fibers; In addition, its compact conformation, function uniqueness, caused people's extensive concern.At nonlinear optics, Fibre Optical Sensor and fiber optic communication field, random distribution feedback laser has potential application foreground widely, thereby is considered to a kind of important new type light source.
In recent years, random-distribution feedback optical fiber laser has become the hot issue of domestic and international research field.In April, 2010, the mode of two directional pump in the middle of Turitsyn etc. adopt, utilizes Rayleigh scattering dorsad in optical fiber as feedback mechanism, successfully realize the stable output of laser, and definite designation is random distribution feedback laser (RDFL).It can provide the continuous laser output of incoherent, non-mode competition, but has that pumping threshold power is high, energy conversion efficiency is low and the shortcoming such as single-mode optical fiber length is oversize.In August, 2011, the broad band wavelength that S.A.Babin etc. have realized random optical-fiber laser output based on Rayleigh scattering is adjustable, but still adopts the energisation mode of double pumping action.Chinese patent notification number CN102354900A, on February 15 2012 day for announcing, name is called " a kind of random-distribution feedback optical fiber laser " and discloses employing double pumping action mode and realize random-distribution feedback optical fiber laser, adopts longer Er-doped fiber, and cost is higher.Chinese patent notification number CN103378538A, October 30 2013 day for announcing, name is called " a kind of low threshold value random fiber laser of semi-open chamber " and discloses and utilize single pumping, semi-open chamber mode to realize accidental laser, but in structure, needs independent optical pumping source that excitation is provided.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of random-distribution feedback optical fiber laser that provides strong feedback, long-range single mode fiber to provide random distribution Rayleigh scattering feedback, semiconductor optical amplifier to provide gain to amplify by fiber grating has been provided.The present invention has the advantages that pumping threshold is lower, transformation efficiency is higher, simple in structure, easy to operate.
The technical scheme that technical solution problem of the present invention is taked is as follows.
A kind of random-distribution feedback optical fiber laser of based semiconductor image intensifer, comprise FC/APC optical fiber splice A, fiber grating, semiconductor optical amplifier, long-range single mode fiber and FC/APC optical fiber splice B, wherein FC/APC optical fiber splice A connects fiber grating, the other end of fiber grating is connected with the input of semiconductor optical amplifier, the output of semiconductor optical amplifier is connected with one end of long-range single mode fiber, and the other end of long-range single mode fiber connects FC/APC optical fiber splice B; At the laser of FC/APC optical fiber splice A or FC/APC optical fiber splice B place stable output.
Operation principle of the present invention: as shown in Figure 1, utilize the self-excitation radiation of semiconductor optical amplifier to enter after long-range single mode fiber, the Rayleigh scattering dorsad of generation has spatially formed distributed light feedback.Because fiber grating is connected FC/APC optical fiber splice with long-range single mode fiber, can ignore the light feedback of end face Fresnel reflection.Above-mentioned distributed light feedback, after fiber grating reflection, has formed the light feedback of the other end, through semiconductor optical amplifier, obtains one way and amplifies.In the time that the overall gain in laser can be offset total losses, reach pumping threshold, obtain Random Laser output; The drive current that continues to increase semiconductor optical amplifier, finally obtains stable Laser output.
The present invention has the following advantages: utilize the semiconductor optical amplifier of electric current pumping to carry out light amplification, have that gain is higher, wider, the saturation output power of gain spectrum width is compared with high, realize the object that reduces single-mode optical fiber length and improve the power output of laser, there is the advantages such as pumping threshold is lower, transformation efficiency is higher, simple in structure, easy to make, easy to operate, cost is lower.
Accompanying drawing explanation
Fig. 1 is the structural representation of the random-distribution feedback optical fiber laser of based semiconductor image intensifer.
Embodiment
Below in conjunction with accompanying drawing and example, the invention will be further described, but be not limited to this.
The embodiment of the present invention comprises fiber grating 1 that FC/APC optical fiber splice A, reflection wavelength are 1550nm as shown in Figure 1, amplify semiconductor optical amplifier 2 that wavelength is 1550nm, (Coming SMF28, core diameter 6.06 μ m) and FC/APC optical fiber splice B for long-range single mode fiber 3.It is characterized in that FC/APC optical fiber splice A connects fiber grating, the other end of fiber grating is connected with the input of semiconductor optical amplifier, the output of semiconductor optical amplifier is connected with long-range single mode fiber, and the other end of long-range single mode fiber connects FC/APC optical fiber splice B; At the laser of FC/APC optical fiber splice A or FC/APC optical fiber splice B place stable output.After the output of this laser is connected with spectrometer or light power meter, just can observe spectrum and the power characteristic of Output of laser.
Wherein, FC/APC optical fiber splice A and B, its insertion loss≤0.2dB, RL return loss >=60dB; Fiber grating 1, its reflectivity is higher than 90%, and centre wavelength is 1550nm, and three dB bandwidth is 0.2nm; Semiconductor optical amplifier 2 adopts tunable electric current pumping, and amplification wavelength is 1550nm, and spectral bandwidth is greater than 40nm, and gain is greater than 30dB; (Corning SMF28, core diameter 6.06 μ m) length are 20km to long-range single mode fiber 3.
Claims (1)
1. the random-distribution feedback optical fiber laser of a based semiconductor image intensifer, comprise FC/APC optical fiber splice A, fiber grating, semiconductor optical amplifier, long-range single mode fiber and FC/APC optical fiber splice B, it is characterized in that FC/APC optical fiber splice A connects fiber grating, the other end of fiber grating is connected with the input of semiconductor optical amplifier, the output of semiconductor optical amplifier is connected with one end of long-range single mode fiber, and the other end of long-range single mode fiber connects FC/APC optical fiber splice B; At FC/APC optical fiber splice A place or the laser of FC/APC optical fiber splice B place stable output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076422.7A CN103825170A (en) | 2014-03-03 | 2014-03-03 | Random distributed feedback fiber laser based on semiconductor optical amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076422.7A CN103825170A (en) | 2014-03-03 | 2014-03-03 | Random distributed feedback fiber laser based on semiconductor optical amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103825170A true CN103825170A (en) | 2014-05-28 |
Family
ID=50760095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410076422.7A Pending CN103825170A (en) | 2014-03-03 | 2014-03-03 | Random distributed feedback fiber laser based on semiconductor optical amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103825170A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501843A (en) * | 2014-12-17 | 2015-04-08 | 电子科技大学 | External cavity type fiber laser sensor based on random feedback |
| CN105356210A (en) * | 2015-12-10 | 2016-02-24 | 电子科技大学 | Frequency stabilized random fiber laser and narrow linewidth measuring method |
| CN105880839A (en) * | 2016-06-23 | 2016-08-24 | 华中科技大学 | Random control method for laser frequency energy of fiber laser for roll roughening |
| WO2021098184A1 (en) * | 2019-11-22 | 2021-05-27 | 重庆大学 | Laser light deep compression method and laser |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354900A (en) * | 2011-11-09 | 2012-02-15 | 中国计量学院 | Random-distribution feedback optical fiber laser |
| CN102801091A (en) * | 2012-09-06 | 2012-11-28 | 北京化工大学 | Random fiber laser |
| CN103378538A (en) * | 2012-04-17 | 2013-10-30 | 电子科技大学 | Semi-open cavity random fiber laser with low threshold |
-
2014
- 2014-03-03 CN CN201410076422.7A patent/CN103825170A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354900A (en) * | 2011-11-09 | 2012-02-15 | 中国计量学院 | Random-distribution feedback optical fiber laser |
| CN103378538A (en) * | 2012-04-17 | 2013-10-30 | 电子科技大学 | Semi-open cavity random fiber laser with low threshold |
| CN102801091A (en) * | 2012-09-06 | 2012-11-28 | 北京化工大学 | Random fiber laser |
Non-Patent Citations (1)
| Title |
|---|
| ZHANG P, WANG T, JIA Q, ET AL.: "A novel fiber laser based on Rayleigh scattering feedback with a half-opened cavity", 《PROC.OF SPIE》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501843A (en) * | 2014-12-17 | 2015-04-08 | 电子科技大学 | External cavity type fiber laser sensor based on random feedback |
| CN105356210A (en) * | 2015-12-10 | 2016-02-24 | 电子科技大学 | Frequency stabilized random fiber laser and narrow linewidth measuring method |
| CN105356210B (en) * | 2015-12-10 | 2018-08-17 | 电子科技大学 | A kind of frequency stabilization random fiber laser and narrow linewidth measurement method |
| CN105880839A (en) * | 2016-06-23 | 2016-08-24 | 华中科技大学 | Random control method for laser frequency energy of fiber laser for roll roughening |
| WO2021098184A1 (en) * | 2019-11-22 | 2021-05-27 | 重庆大学 | Laser light deep compression method and laser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102354900B (en) | Random-distribution feedback optical fiber laser | |
| CN103825169A (en) | Fiber laser based on doped fiber random phase shift raster | |
| CN103872560A (en) | Single-pumping semi-open cavity randomly-distributed feedback laser based on erbium-doped fiber | |
| CN202512332U (en) | Full-optical fiber ultrashort laser pulse amplifier | |
| CN104617471A (en) | Random laser based on Fresnel reflection of fiber flat surface | |
| CN103825170A (en) | Random distributed feedback fiber laser based on semiconductor optical amplifier | |
| Li et al. | 90 nm gain extension towards 1.7 μm for diode-pumped silica-based thulium-doped fiber amplifiers | |
| CN102263358A (en) | High-power broadband superfluorescence light source in all-fiber structure | |
| Alam et al. | Recent progress in the development of few mode fiber amplifiers | |
| CN103401131A (en) | Random fiber laser for hybrid of a special fiber and a standard single mode fiber | |
| CN103036135A (en) | L wave band broadband tunable multi-wavelength optical fiber laser | |
| Lu et al. | Gain flattening by using dual-core fiber in erbium-doped fiber amplifier | |
| CN105322420B (en) | Simple and adjustable multi-wavelength Brillouin-erbium-doped fiber laser | |
| CN103296567A (en) | Ultra-narrow-linewidth nonlinear gain amplification multi-wavelength fiber laser | |
| CN107785771A (en) | A kind of Dan Zong for improving wavelength delivery efficiency touches multi-wavelength tunable Optical Maser System and method | |
| CN103794974A (en) | Novel fiber amplifier | |
| Tench et al. | Broadband high gain polarization-maintaining holmium-doped fiber amplifiers | |
| CN108565667A (en) | A kind of feedback-enhanced erbium-doped nonlinear fiber grating accidental laser | |
| CN104158072A (en) | In-band pumped 2-micron single-frequency fiber laser with thulium-doped silica fiber | |
| CN102280803A (en) | Pulse fiber amplifier | |
| CN108649415B (en) | Thulium-doped optical fiber laser amplifier | |
| CN103618202B (en) | A kind of broadband light source system adopting C-band Er-doped fiber to produce C+L wave band | |
| Tench et al. | All-polarization-maintaining one-and two-stage Holmium-doped Fiber Amplifiers at 2051 nm | |
| CN105098590A (en) | Dual wavelength Raman fiber laser based on combination of weak fiber grating arrays and Raman scattering | |
| CN204464746U (en) | Based on the random distribution feedback light fibre optic Raman laser that fiber grating string and Raman scattering combine |
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: 20140528 |