CN107026383A - A kind of tunable wave length list polarizes single-frequency circular cavity optic fibre laser - Google Patents
A kind of tunable wave length list polarizes single-frequency circular cavity optic fibre laser Download PDFInfo
- Publication number
- CN107026383A CN107026383A CN201710479108.7A CN201710479108A CN107026383A CN 107026383 A CN107026383 A CN 107026383A CN 201710479108 A CN201710479108 A CN 201710479108A CN 107026383 A CN107026383 A CN 107026383A
- Authority
- CN
- China
- Prior art keywords
- fiber
- polarization
- fibre
- couplers
- photo
- 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.)
- Granted
Links
Classifications
-
- 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
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06712—Polarising fibre; Polariser
-
- 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
- H01S3/06791—Fibre ring 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
A kind of tunable wave length list polarization single-frequency circular cavity optic fibre laser of the present invention belongs to fiber laser technology field, and its structure has pumping source (1), wavelength division multiplexer (2), Er-doped fiber (3), fibre optic polarizer (4), polarization maintaining optical fibre (5), bandpass filter (6), optoisolator (7), 2 × 2 photo-couplers (8), two mould graded index fibers (9), fiber optical circulator (10) and Polarization Controller (11).The present invention obtains high-quality laser output using compact simple design structure, practical, not only with single-frequency characteristic, and with single polarization characteristic, is both suitable for speed fiber optic communication systems, is suitable for Polarization-Sensitive fibre system again.
Description
Technical field
The invention belongs to fiber laser technology field, and in particular to a kind of tunable wave length list polarizes single-frequency annular cavity optical
Fibre laser.
Background technology
Optical fiber laser have high yield rate, thermal diffusivity it is good, with fibre system coupling efficiency it is high the features such as, it is logical in optical fiber
The field such as letter, photoproduction microwave, Fibre Optical Sensor has wide application value, the pattern as disclosed in Chinese patent CN103852092A
Interference annular chamber fiber laser sensor combines mode-interference sensing and optical-fiber laser resonance, available for displacement, temperature
The sensing measurement of all kinds of physical quantitys such as degree, strain.Many longitudinal mode states being operated at current erbium doped fiber laser, which has limited it more
Application in speed fiber optic communication systems, is that this researcher is proposed using phase-shifted fiber grating, anti-Gauss apodization optical fiber cloth
Glug grating, ultrashort cell method, saturated absorbing body method, compound cell method etc. have single-frequency characteristic to ensure to export laser.But in mesh
There are two orthogonal polarization modes preceding single frequency optical fiber laser in the prior art, which has limited it in Polarization-Sensitive optical fiber system more
Application in system, is that this researcher proposes to ensure that output swashs using fibre optic polarizer, polarization-maintaining fiber grating, self-injection locking
Light has single polarization characteristic.But in currently available technology, there is manufacture craft and require higher, structure in above-mentioned optical fiber laser
It is complex, it is difficult to while the shortcomings of realizing single-frequency and single polarization characteristic.
Retrieved through document and new patent searching, so far there is not yet mutually isostructural tunable wave length list polarizes single-frequency annular cavity optical
The patent report of fibre laser.
The content of the invention
The technical problems to be solved by the invention are that many longitudinal modes for overcoming the optical fiber laser in background technology vibrate and non-
The problem of single polarization state is exported polarizes single-frequency circular cavity optic fibre laser there is provided a kind of tunable wave length list.
Technical scheme is as follows：
A kind of tunable wave length list polarizes single-frequency circular cavity optic fibre laser, its structure have pumping source 1, wavelength division multiplexer 2,
Er-doped fiber 3, bandpass filter 6, optoisolator 7,2 × 2 photo-couplers 8 and fiber optical circulator 10, it is characterised in that structure is also
There are fibre optic polarizer 4, polarization maintaining optical fibre 5, two mould graded index fibers 9 and Polarization Controller 11；Wherein described bandpass filtering
Device 6 is tunable bandpass filters；
The output port of pumping source 1 is connected with the 980nm ports of wavelength division multiplexer 2, the 1550nm ports of wavelength division multiplexer 2
It is connected with one end of fibre optic polarizer 4, the other end of fibre optic polarizer 4 is connected with one end of polarization maintaining optical fibre 5, polarization maintaining optical fibre 5
The other end is connected with the input of bandpass filter 6, and the output end of bandpass filter 6 is connected with the input of optoisolator 7, light
The output end of isolator 7 is connected with 1 port of 2 × 2 photo-couplers 8,3 ports of 2 × 2 photo-couplers 8 and two mould gradient index
One end of rate optical fiber 9 is connected, and the other end of two mould graded index fibers 9 is connected with 2 ports of fiber optical circulator 10, fiber optic loop
3 ports of row device 10 are connected with one end of Polarization Controller 11, the other end of Polarization Controller 11 and 1 end of fiber optical circulator 10
Mouth is connected, and 2 ports of 2 × 2 photo-couplers 8 are connected with one end of Er-doped fiber 3, the other end and wavelength-division multiplex of Er-doped fiber 3
The public port of device 2 is connected, and 4 ports of 2 × 2 photo-couplers 8 are used as tunable wave length list polarization single-frequency annular chamber of the invention
The output port of optical fiber laser.
In a kind of tunable wave length list polarization single-frequency circular cavity optic fibre laser of the present invention, described pumping source 1 is excellent
980nm pumping sources are selected, the preferred 980/1550nm wavelength division multiplexers of described wavelength division multiplexer 2,2 × 2 described photo-couplers 8 are excellent
It is 30 to select splitting ratio:70 standard single-mode fiber coupler.
Beneficial effect：
1st, tunable wave length list polarization single-frequency circular cavity optic fibre laser of the present invention uses compact simple design
Structure obtains high-quality laser output, practical；
2nd, tunable wave length list polarization single-frequency circular cavity optic fibre laser of the present invention not only has single-frequency characteristic, and
And with single polarization characteristic, be both suitable for speed fiber optic communication systems, be suitable for Polarization-Sensitive fibre system again.
Brief description of the drawings：
Fig. 1 is that the tunable wave length list of the present invention polarizes the principle assumption diagram of single-frequency circular cavity optic fibre laser.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, being given for example only property of following examples explanation, no
It is understood that as the limitation to this patent.
The concrete structure of the present invention of embodiment 1
Fig. 1 is the principle assumption diagram that tunable wave length list of the present invention polarizes single-frequency circular cavity optic fibre laser.By
Pumping source 1, wavelength division multiplexer 2, Er-doped fiber 3, fibre optic polarizer 4, polarization maintaining optical fibre 5, bandpass filter 6, optoisolator 7,2 ×
2 photo-couplers 8, two mould graded index fibers 9, fiber optical circulator 10, Polarization Controller 11 are constituted.
Their annexation is：The output port of pumping source 1 is connected with the 980nm ports of wavelength division multiplexer 2, and wavelength-division is multiple
It is connected with the 1550nm ports of device 2 with one end of fibre optic polarizer 4, the other end of fibre optic polarizer 4 and one end of polarization maintaining optical fibre 5
It is connected, the other end of polarization maintaining optical fibre 5 is connected with the input of bandpass filter 6, the output end and optoisolator of bandpass filter 6
7 input is connected, and the output end of optoisolator 7 is connected with 1 port of 2 × 2 photo-couplers 8,3 ends of 2 × 2 photo-couplers 8
Mouth is connected with one end of two mould graded index fibers 9, the other end and the fiber optical circulator 10 of two mould graded index fibers 9
2 ports be connected, 3 ports of fiber optical circulator 10 are connected with one end of Polarization Controller 11, the other end of Polarization Controller 11 and
1 port of fiber optical circulator 10 is connected, and 2 ports of 2 × 2 photo-couplers 8 are connected with one end of Er-doped fiber 3, Er-doped fiber 3
The other end is connected with the public port of wavelength division multiplexer 2,4 ports of 2 × 2 photo-couplers 8 as whole system output port.
The connection between each part uses fused fiber splice above.
Refering to Fig. 1, described pumping source 1 is 980nm pumping sources, and described wavelength division multiplexer 2 is 980/1550nm wavelength-divisions
Multiplexer, pumping source 1 provides 980nm pump light signals by wavelength division multiplexer 2 for optical fiber laser；Described Er-doped fiber 3
It is the Er-doped fiber of high-gain, it functions as the gain media of optical fiber laser；Described polarization maintaining optical fibre 5 is with Gao Shuan
The polarization-maintaining fiber of refracting characteristic, it and fibre optic polarizer 4 collectively constitute birefringent light fiber filter；Described bandpass filtering
Device 6 is tunable bandpass filters, and it is the transmission peak position conduct for selecting birefringent light fiber filter pectination transmission spectrum that it, which is acted on,
Excitation wavelength；The effect of described optoisolator 7 is to ensure that laser signal is transported along clockwise direction in fig. 1 in resonator
Turn；2 × 2 described photo-couplers 8 are that splitting ratio is 30:70 standard single-mode fiber coupler, 1 end of 2 × 2 photo-couplers 8
Mouth is connected with the output end of optoisolator 7, and the single-mode tail fiber and two moulds of 3 ports (splitting ratio 30%) of 2 × 2 photo-couplers 8 are gradually
One end of nonlinear refractive-index fiber 9 is connected, and 2 ports of 2 × 2 photo-couplers 8 are connected with one end of Er-doped fiber 3, and composition annular is humorous
Shake chamber, and 4 ports (splitting ratio 70%) of 2 × 2 photo-couplers 8 are used as system outlet port；Two described mould graded index light
Fibre 9 is only LP01And LP11Less fundamental mode optical fibre, the single-mode tail fiber and fiber optical circulator of 3 ports of it and 2 × 2 photo-couplers 8
10 2 port single-mode tail fibers collectively constitute spatial model interference filter；Described fiber optical circulator 10 is three fiber port rings
Row device, its 1 port and 3 ports and the composition fiber reflector of Polarization Controller 11, for adjusting optical signal in ring resonator
Polarization state, changes the coupled ratio between different mode.
The operation principle of the present invention of embodiment 2
The tunable wave length list polarization single-frequency circular cavity optic fibre laser of the present invention uses counter-pumping configuration, pumping source 1
The 980nm pump light signals sent are by wavelength division multiplexer 2 pumping, one section of Er-doped fiber 3, and optoisolator 7 is used for ensureing annular
Laser signal is along operating clockwise in resonator, and reverse spontaneous emission light amplified signal (being produced by Er-doped fiber 3) enters by light
The birefringent light fiber filter of fine polarizer 4 and polarization maintaining optical fibre 5 composition.Birefringent light fiber filter effectively selects single polarization
Optical signal, its good polarization conserving properties is beneficial to single polarization output of optical fiber laser, while its narrow-band filtering characteristic
It is beneficial to many longitudinal modes vibration for suppressing optical fiber laser.The pectination transmission spectrum wavelength interval of birefringent light fiber filter is more than or equal to
The three dB bandwidth of bandpass filter 6, the centre wavelength of bandpass filter 6 is tuned to the transmission of birefringent light fiber filter pectination successively
The transmission peak position of spectrum, that is, realize the selection of optical fiber laser excitation wavelength.By 3 port single mode tails of 2 × 2 photo-couplers 8
2 port single-mode tail fiber composition spatial model interference filters of fine, two mould graded index fibers 9 and fiber optical circulator 10, light
1 port of the signal through 2 × 2 photo-couplers 8 enters the spatial model interference filter based on two mould graded index fibers 9, base
There was only LP in the spatial model interference filter of two mould graded index fibers 901And LP11Interfered between two patterns.
Fiber optical circulator 10 and Polarization Controller 11 constitute fiber reflector, and circulation vibration had both been can adjust by adjusting Polarization Controller 11
During be again introduced into the optical signal polarization state of fibre optic polarizer 4, can change again in circulation oscillatory process between two patterns
Coupled ratio.The optical signal that fiber reflector is reflected again passes by the spatial model based on two mould graded index fibers 9
Interference filter, this enhance LP01And LP11Interference between two patterns, can filter out the spuious side caused by multiple-mode interfence
Mould, serves the effect for suppressing many longitudinal mode vibrations of optical fiber laser.3 ports of the optical signal through 2 × 2 photo-couplers 8 feed back to 2 ×
2 ports of 2 photo-couplers 8,2 ports of 2 × 2 photo-couplers 8 are connected to form ring resonator with one end of Er-doped fiber 3, instead
Present optical signal to vibrate in annular resonance cavity circulation, under birefringent light fiber filter and spatial model interference filter collective effect
Many longitudinal modes vibration of optical fiber laser is effectively suppressed, and laser is believed under birefringent light fiber filter and Polarization Controller collective effect
Number polarization state it is constantly optimised so that the laser of 4 ports through 2 × 2 photo-couplers 8 output has single-frequency and single polarized simultaneously
Characteristic.
Claims (2)
1. a kind of tunable wave length list polarizes single-frequency circular cavity optic fibre laser, its structure has pumping source (1), wavelength division multiplexer
(2), Er-doped fiber (3), bandpass filter (6), optoisolator (7), 2 × 2 photo-couplers (8) and fiber optical circulator (10), its
It is characterised by, structure also has fibre optic polarizer (4), polarization maintaining optical fibre (5), two mould graded index fibers (9) and Polarization Controller
(11)；Wherein described bandpass filter (6) is tunable bandpass filters；
The output port of pumping source (1) is connected with the 980nm ports of wavelength division multiplexer (2), the 1550nm ends of wavelength division multiplexer (2)
Mouth is connected with one end of fibre optic polarizer (4), and the other end of fibre optic polarizer (4) is connected with one end of polarization maintaining optical fibre (5), polarization-maintaining
The other end of optical fiber (5) is connected with the input of bandpass filter (6), output end and the optoisolator (7) of bandpass filter (6)
Input be connected, the output end of optoisolator (7) is connected with 1 port of 2 × 2 photo-couplers (8), 2 × 2 photo-couplers (8)
3 ports be connected with one end of two mould graded index fibers (9), the other end and optical fiber of two mould graded index fibers (9)
2 ports of circulator (10) are connected, and 3 ports of fiber optical circulator (10) are connected with one end of Polarization Controller (11), polarization control
The other end of device (11) processed is connected with 1 port of fiber optical circulator (10), 2 ports of 2 × 2 photo-couplers (8) and Er-doped fiber
(3) one end is connected, and the other end of Er-doped fiber (3) is connected with the public port of wavelength division multiplexer (2), 2 × 2 photo-couplers
(8) 4 ports polarize the output port of single-frequency circular cavity optic fibre laser as the tunable wave length list of the present invention.
2. a kind of tunable wave length list polarization single-frequency circular cavity optic fibre laser according to claim 1, it is characterised in that
Described pumping source (1) is 980nm pumping sources, and described wavelength division multiplexer (2) is 980/1550nm wavelength division multiplexers, described
2 × 2 photo-couplers (8) are that splitting ratio is 30:70 standard single-mode fiber coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710479108.7A CN107026383B (en) | 2017-06-22 | 2017-06-22 | Wavelength-tunable single-polarization single-frequency ring cavity fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710479108.7A CN107026383B (en) | 2017-06-22 | 2017-06-22 | Wavelength-tunable single-polarization single-frequency ring cavity fiber laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107026383A true CN107026383A (en) | 2017-08-08 |
| CN107026383B CN107026383B (en) | 2019-12-06 |
Family
ID=59531969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710479108.7A Active CN107026383B (en) | 2017-06-22 | 2017-06-22 | Wavelength-tunable single-polarization single-frequency ring cavity fiber laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107026383B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493749A (en) * | 2018-04-24 | 2018-09-04 | 南京邮电大学 | A kind of Tunable Multi-wavelength Fiber Laser based on high birefringence micro-nano fiber |
| CN114498262A (en) * | 2021-12-31 | 2022-05-13 | 北京交通大学 | Multi-wavelength switchable single longitudinal mode thulium-doped fiber laser |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013791A (en) * | 2007-02-05 | 2007-08-08 | 北京交通大学 | Ring tunable single-frequency single-polarization fiber laser |
| CN101013792A (en) * | 2007-02-05 | 2007-08-08 | 北京交通大学 | Linear tunable single-frequency single-polarization fiber laser |
| CN101132102A (en) * | 2007-08-23 | 2008-02-27 | 上海交通大学 | Single-longitudinal mode optical fiber ring laser based on wave filter with double Sagnac rings |
| CN101355226A (en) * | 2008-08-05 | 2009-01-28 | 北京航空航天大学 | Single-frequency single-polarization liner cavity ytterbium-doping optical fiver laser |
| US20090225794A1 (en) * | 2008-03-10 | 2009-09-10 | Jian Liu | High Energy All Fiber Mode Locked Fiber Laser |
| CN101667710A (en) * | 2009-10-09 | 2010-03-10 | 北京航空航天大学 | Tunable single-frequency single polarization fiber laser based on polarization-preserved fiber grating |
| CN102946041A (en) * | 2012-11-26 | 2013-02-27 | 中国人民解放军国防科学技术大学 | Tunable single-polarization Brillouin erbium-doped optical fiber laser with super narrow linewidth |
| CN104932121A (en) * | 2015-06-25 | 2015-09-23 | 天津理工大学 | Microwave photon filter based on multi-wavelength fiber laser and chirp Bragg gratings |
| CN106848823A (en) * | 2017-03-06 | 2017-06-13 | 南京邮电大学 | A kind of 8 word chamber locked mode post vector optical fiber lasers based on model selection coupler |
-
2017
- 2017-06-22 CN CN201710479108.7A patent/CN107026383B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013791A (en) * | 2007-02-05 | 2007-08-08 | 北京交通大学 | Ring tunable single-frequency single-polarization fiber laser |
| CN101013792A (en) * | 2007-02-05 | 2007-08-08 | 北京交通大学 | Linear tunable single-frequency single-polarization fiber laser |
| CN101132102A (en) * | 2007-08-23 | 2008-02-27 | 上海交通大学 | Single-longitudinal mode optical fiber ring laser based on wave filter with double Sagnac rings |
| US20090225794A1 (en) * | 2008-03-10 | 2009-09-10 | Jian Liu | High Energy All Fiber Mode Locked Fiber Laser |
| CN101355226A (en) * | 2008-08-05 | 2009-01-28 | 北京航空航天大学 | Single-frequency single-polarization liner cavity ytterbium-doping optical fiver laser |
| CN101667710A (en) * | 2009-10-09 | 2010-03-10 | 北京航空航天大学 | Tunable single-frequency single polarization fiber laser based on polarization-preserved fiber grating |
| CN102946041A (en) * | 2012-11-26 | 2013-02-27 | 中国人民解放军国防科学技术大学 | Tunable single-polarization Brillouin erbium-doped optical fiber laser with super narrow linewidth |
| CN104932121A (en) * | 2015-06-25 | 2015-09-23 | 天津理工大学 | Microwave photon filter based on multi-wavelength fiber laser and chirp Bragg gratings |
| CN106848823A (en) * | 2017-03-06 | 2017-06-13 | 南京邮电大学 | A kind of 8 word chamber locked mode post vector optical fiber lasers based on model selection coupler |
Non-Patent Citations (4)
| Title |
|---|
| 孙铁刚: "《双波长单频光纤激光器研究》", 《中国优秀硕士学位论文全文数据库》 * |
| 崔三烈: "《光纤传感原理与应用技术》", 30 April 1995, 哈尔滨工程大学出版社 * |
| 廖延彪等: "《现代光信息传感原理》", 31 January 2016, 清华大学出版社 * |
| 张岩等: "《2μm波段双波长间隔可调谐光纤激光器》", 《光子学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493749A (en) * | 2018-04-24 | 2018-09-04 | 南京邮电大学 | A kind of Tunable Multi-wavelength Fiber Laser based on high birefringence micro-nano fiber |
| CN108493749B (en) * | 2018-04-24 | 2023-09-08 | 南京邮电大学 | Tunable multi-wavelength fiber laser based on high-birefringence micro-nano fiber |
| CN114498262A (en) * | 2021-12-31 | 2022-05-13 | 北京交通大学 | Multi-wavelength switchable single longitudinal mode thulium-doped fiber laser |
| CN114498262B (en) * | 2021-12-31 | 2023-11-07 | 北京交通大学 | Multi-wavelength switchable single-longitudinal-mode thulium-doped fiber laser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107026383B (en) | 2019-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101483307A (en) | Polarization related outputting multiple wavelength and passive mode locking optical fiber laser | |
| CN103149628B (en) | Micro-tapered fiber for producing ultra-narrow linewidth fiber laser, and laser | |
| CN104297854B (en) | Silicon substrate multi wave length illuminating source and its method for realization | |
| CN100444480C (en) | Ring tunable single-frequency single-polarization fiber laser | |
| CN109787074A (en) | A kind of single mode narrow linewidth optical fiber laser based on double fiber coupling rings and saturated absorbing body | |
| Dimmick et al. | Compact all-fiber acoustooptic tunable filters with small bandwidth-length product | |
| CN101777722B (en) | Double-wavelength single-longitudinal-mode fiber laser and operating method thereof | |
| CN1295822C (en) | Convertible dual-wavelength doping optical fiber laser | |
| CN107026383A (en) | A kind of tunable wave length list polarizes single-frequency circular cavity optic fibre laser | |
| CN209516303U (en) | A kind of changeable multiple-wavelength laser that all -fiber wavelength interval is variable | |
| CN102324685A (en) | Multi-wavelength erbium-doped optical fiber laser based on parallel non-linear polarization rotation structure | |
| CN100505442C (en) | Dual-wavelength single-longitudinal mode optical fiber ring laser device | |
| CN105633773A (en) | Chirped and phase-shifted fiber bragg grating-based ring cavity Q-switched pulse laser | |
| CN100423385C (en) | A linear resonant cavity wide narrow line tunable optical fiber laser | |
| CN100495835C (en) | Separate linetype cavity wavelength interval tunable single polarization dual wavelength optical fibre grating laser | |
| CN105703208A (en) | Multi-wavelength tunable laser based on polarization-maintaining chirped phase-shift fiber grating | |
| CN110535013A (en) | Ultra-narrow wire single frequency optical fiber laser based on convex fiber optic loop and Sagnac ring | |
| CN104617472B (en) | Multi-wavelength super-narrow line width Brillouin erbium-doped fiber laser | |
| CN109638625A (en) | Multi-wavelength tunable all-fiber pulse laser and system | |
| CN208459624U (en) | Super model interference filter and fiber optic wavelength tunable mode-locked laser | |
| CN103515836B (en) | Dual-wavelength annular cavity single frequency optical fiber laser | |
| CN100514772C (en) | Novel single-polarization multi-wavelength polarization-preserving sampling optical fiber optical grating laser | |
| CN103178434A (en) | Wavelength-tunable miniature single-mode optical fiber laser | |
| CN100446358C (en) | Linear tunable single-frequency single-polarization fiber laser | |
| CN107887785A (en) | A kind of optical fiber and the compound single frequency optical fiber laser of wave guide resonance ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |