CN101145669A - Narrow linewidth optical fiber laser - Google Patents
Narrow linewidth optical fiber laser Download PDFInfo
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- CN101145669A CN101145669A CNA200710047414XA CN200710047414A CN101145669A CN 101145669 A CN101145669 A CN 101145669A CN A200710047414X A CNA200710047414X A CN A200710047414XA CN 200710047414 A CN200710047414 A CN 200710047414A CN 101145669 A CN101145669 A CN 101145669A
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- optical fiber
- fiber laser
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- coupling mirror
- double
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 64
- 230000008878 coupling Effects 0.000 claims abstract description 38
- 238000010168 coupling process Methods 0.000 claims abstract description 38
- 238000005859 coupling reaction Methods 0.000 claims abstract description 38
- 238000005253 cladding Methods 0.000 claims abstract description 21
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229940085805 fiberall Drugs 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
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- Optical Couplings Of Light Guides (AREA)
Abstract
A narrow linewidth optical fiber laser is characterized in that narrow linewidth output is achieved by placing an F-P etalon in a resonant cavity of the optical fiber laser. The whole device consists of a pumping source, a coupling lens, an input coupling mirror, a double-cladding active optical fiber, a short-focus collimating lens, an F-P etalon and an output coupling mirror. The input end of the double-clad active optical fiber is tightly attached to the input coupling mirror, a coupling lens is arranged in front of the input coupling mirror, a pumping source is arranged in front of the coupling lens, the output end of the double-clad active optical fiber is arranged on the focal plane of the short-focus collimating lens, an F-P etalon and an output coupling mirror are sequentially arranged behind the short-focus collimating lens, and the latter and the input coupling mirror form a laser resonant cavity. The invention can realize narrow linewidth output of the optical fiber laser, has compact structure and convenient integration, and can be applied to a plurality of fields.
Description
Technical field
The present invention relates to fiber laser, particularly a kind of narrow cable and wide optical fiber laser.
Background technology
Adopt wavelength select element can the limit laser gain spectral in the longitudinal mode number of starting of oscillation, thereby obtain narrow linewidth even single-frequency laser output.In fiber laser, the most frequently used way is to write the Bragg grating reflector at optical fiber itself.But because aspects such as doping, the normal doubly clad optical fiber that adopts can not write Bragg grating as ordinary optic fibre in high-capacity optical fiber laser, has therefore limited its application.
Summary of the invention
The object of the present invention is to provide a kind of narrow cable and wide optical fiber laser, to realize the high power laser light output of narrow linewidth.
Technical solution of the present invention is as follows:
A kind of narrow cable and wide optical fiber laser, its formation is by along light path pumping source successively, coupled lens, the input coupling mirror, double-cladding active optical fiber, short focal length collimating lens, F-P etalon and output coupling mirror are formed, the input of described double-cladding active optical fiber is close to described input coupling mirror, the pumping laser of pumping source output focuses on by coupled lens and enters double-cladding active optical fiber, the output of double-cladding active optical fiber places on the focal plane of short focal length collimating lens, short focal length collimating lens back sets gradually described F-P etalon and output coupling mirror, and described output coupling mirror is formed laserresonator with the input coupling mirror.
Described pumping source is a semiconductor laser diode.
Described coupled lens surface is coated with and the corresponding anti-reflection deielectric-coating of pump light wavelength.
Described input coupling mirror is coated with pump light high saturating, to the deielectric-coating of the corresponding total reflection of optical-fiber laser output wavelength.
Two end faces of described double-cladding active optical fiber all are coated with and the corresponding anti-reflection deielectric-coating of optical-fiber laser output wavelength.
The focal length of described short focal length collimating lens is by the numerical aperture decision of optical fiber, and lens surface is coated with and the corresponding anti-reflection deielectric-coating of optical-fiber laser output wavelength.
The use wavelength of described F-P etalon is corresponding with the optical-fiber laser output wavelength, and its live width requires decision by the output linewidth that expectation obtains, and described F-P etalon is made up of one or several F-P etalons.
Described output coupling mirror surface is coated with and the corresponding partial reflection deielectric-coating of optical-fiber laser output wavelength.
Narrow cable and wide optical fiber laser of the present invention can be realized narrow linewidth output, and simultaneously, compact conformation is convenient to integratedly, can be applicable to a plurality of fields.
Description of drawings
Fig. 1 is a narrow cable and wide optical fiber laser structural representation of the present invention.
Embodiment
See also Fig. 1, Fig. 1 is the novel narrow cable and wide optical fiber laser structural representation of the present invention.As seen from the figure, narrow cable and wide optical fiber laser of the present invention, its formation is by along light path pumping source 1 successively, coupled lens 2, input coupling mirror 3, double-cladding active optical fiber 4, short focal length collimating lens 5, F-P etalon 6 and output coupling mirror 7 are formed, the input of described double-cladding active optical fiber 4 is close to described input coupling mirror 3, the pumping laser of pumping source 1 output focuses on by coupled lens 2 and enters double-cladding active optical fiber 4, the output of double-cladding active optical fiber 4 places on the focal plane of short focal length collimating lens 5, short focal length collimating lens 5 back set gradually described F-P etalon 6 and output coupling mirror 7, and output coupling mirror 7 is formed laserresonator with input coupling mirror 3.
Described pumping source 1 is a semiconductor laser diode.Described coupled lens 2 surfaces are coated with the anti-reflection deielectric-coating that conforms to the pump light wavelength.Described input coupling mirror 3 is coated with pump light high saturating, to the deielectric-coating of the corresponding total reflection of optical-fiber laser output wavelength.45 two end faces of described double-cladding active optical fiber all are coated with and the corresponding anti-reflection deielectric-coating of optical-fiber laser output wavelength.The focal length of described short focal length collimating lens 5 is by the numerical aperture decision of optical fiber, and lens surface is coated with and the corresponding anti-reflection deielectric-coating of optical-fiber laser output wavelength.The use wavelength of described F-P etalon 6 is corresponding with the optical-fiber laser output wavelength, and its live width requires decision by the output linewidth that expectation obtains, and described F-P etalon is made up of one or several F-P etalons.The surface of described output coupling mirror 7 is coated with and the corresponding partial reflection deielectric-coating of optical-fiber laser output wavelength.
The pump light of pumping source 1 output focuses on through coupled lens 2 and enters double-cladding active optical fiber 4, and the input end face of double-cladding active optical fiber 4 is placed on the focus of coupled lens 2.Input coupling mirror 3 is close on this end face, is coated with laser and is all-trans the one side of film towards double-cladding active optical fiber.The double-cladding active optical fiber output places on the focus of short focal length collimating lens 5, makes output laser become directional light, and F-P etalon 6 places between short focal length collimating lens 5 and the output coupling mirror 7, and the one side of output coupling mirror 7 plated films is towards double-cladding active optical fiber 6.Laser forms vibration between input coupling mirror 3 and output coupling mirror 7.
Test shows, under the wavelength selection of F-P etalon, and obtainable output laser bandwidth＜5GHz.
Claims (8)
1. narrow cable and wide optical fiber laser, be characterised in that its formation is by along light path pumping source successively, coupled lens, the input coupling mirror, double-cladding active optical fiber, short focal length collimating lens, F-P etalon and output coupling mirror are formed, the input of described double-cladding active optical fiber is close to described input coupling mirror, the pumping laser of pumping source output focuses on by coupled lens and enters double-cladding active optical fiber, the output of double-cladding active optical fiber places on the focal plane of short focal length collimating lens, short focal length collimating lens back sets gradually described F-P etalon and output coupling mirror, and output coupling mirror is formed laserresonator with the input coupling mirror.
2. narrow cable and wide optical fiber laser according to claim 1 is characterized in that described pumping source is a semiconductor laser diode.
3. narrow cable and wide optical fiber laser according to claim 1 is characterized in that described coupled lens surface is coated with the anti-reflection deielectric-coating that conforms to the pump light wavelength.
4. narrow cable and wide optical fiber laser according to claim 1, it is high saturating to it is characterized in that described input coupling mirror is coated with pump light, to the deielectric-coating of the corresponding total reflection of optical-fiber laser output wavelength.
5. narrow cable and wide optical fiber laser according to claim 1 is characterized in that two end faces of described double-cladding active optical fiber all are coated with and the corresponding anti-reflection deielectric-coating of optical-fiber laser output wavelength.
6. narrow cable and wide optical fiber laser according to claim 1 is characterized in that the numerical aperture decision of the focal length of described short focal length collimating lens by optical fiber, and lens surface is coated with and the corresponding anti-reflection deielectric-coating of optical-fiber laser output wavelength.
7. narrow cable and wide optical fiber laser according to claim 1, the use wavelength that it is characterized in that described F-P etalon is corresponding with the optical-fiber laser output wavelength, its live width requires decision by the output linewidth that expectation obtains, and described F-P etalon is made up of one or several F-P etalons.
8. narrow cable and wide optical fiber laser according to claim 1 is characterized in that described output coupling mirror surface is coated with and the corresponding partial reflection deielectric-coating of optical-fiber laser output wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710047414XA CN101145669A (en) | 2007-10-25 | 2007-10-25 | Narrow linewidth optical fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710047414XA CN101145669A (en) | 2007-10-25 | 2007-10-25 | Narrow linewidth optical fiber laser |
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| Publication Number | Publication Date |
|---|---|
| CN101145669A true CN101145669A (en) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200710047414XA Pending CN101145669A (en) | 2007-10-25 | 2007-10-25 | Narrow linewidth optical fiber laser |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244344A (en) * | 2011-06-02 | 2011-11-16 | 天津大学 | Neodymium-doped ion fiber laser of In-band pump |
| CN102969647A (en) * | 2012-10-30 | 2013-03-13 | 华中科技大学 | Progressive type fiber laser device |
| CN103701025A (en) * | 2012-12-20 | 2014-04-02 | 中国科学院光电研究院 | Self-seed-injection dual-cavity excimer laser system |
| CN103811985A (en) * | 2014-03-05 | 2014-05-21 | 中国科学院半导体研究所 | Miniature ErYb co-doped superfluorescent optical fiber light source |
| CN105470792A (en) * | 2016-01-04 | 2016-04-06 | 中国科学院上海光学精密机械研究所 | High-power dual-core co-cavity optical fiber laser |
| CN112117626A (en) * | 2020-09-20 | 2020-12-22 | 河南顺博新能源科技有限公司 | Tunable narrow-linewidth terahertz wave parameter source for parametric Stokes optical seed injection |
-
2007
- 2007-10-25 CN CNA200710047414XA patent/CN101145669A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244344A (en) * | 2011-06-02 | 2011-11-16 | 天津大学 | Neodymium-doped ion fiber laser of In-band pump |
| CN102244344B (en) * | 2011-06-02 | 2012-10-03 | 天津大学 | Neodymium-doped ion fiber laser of In-band pump |
| CN102969647A (en) * | 2012-10-30 | 2013-03-13 | 华中科技大学 | Progressive type fiber laser device |
| CN103701025A (en) * | 2012-12-20 | 2014-04-02 | 中国科学院光电研究院 | Self-seed-injection dual-cavity excimer laser system |
| CN103701025B (en) * | 2012-12-20 | 2016-08-24 | 中国科学院光电研究院 | Self-seeding double cavity structure excimer laser system |
| CN103811985A (en) * | 2014-03-05 | 2014-05-21 | 中国科学院半导体研究所 | Miniature ErYb co-doped superfluorescent optical fiber light source |
| CN103811985B (en) * | 2014-03-05 | 2017-01-18 | 中国科学院半导体研究所 | Miniature ErYb co-doped superfluorescent optical fiber light source |
| CN105470792A (en) * | 2016-01-04 | 2016-04-06 | 中国科学院上海光学精密机械研究所 | High-power dual-core co-cavity optical fiber laser |
| CN105470792B (en) * | 2016-01-04 | 2019-07-16 | 中国科学院上海光学精密机械研究所 | Two core of high power is total to cavity optical fibre laser |
| CN112117626A (en) * | 2020-09-20 | 2020-12-22 | 河南顺博新能源科技有限公司 | Tunable narrow-linewidth terahertz wave parameter source for parametric Stokes optical seed injection |
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