CN101771231A - Ytterbium-doped ultrashort pulse fiber laser for dispersion compensation in cavity - Google Patents
Ytterbium-doped ultrashort pulse fiber laser for dispersion compensation in cavity Download PDFInfo
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- CN101771231A CN101771231A CN200810236574A CN200810236574A CN101771231A CN 101771231 A CN101771231 A CN 101771231A CN 200810236574 A CN200810236574 A CN 200810236574A CN 200810236574 A CN200810236574 A CN 200810236574A CN 101771231 A CN101771231 A CN 101771231A
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- fiber
- ytterbium
- wavelength division
- division multiplexer
- ultrashort pulse
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Abstract
An ytterbium-doped ultrashort pulse fiber laser for dispersion compensation in a cavity comprises a semiconductor pumping source connected with the input end of a wavelength division multiplexer as well as a photonic crystal fiber, a fiber coupling follower, polarization controllers and an optical isolator sequentially connected with the output end of the wavelength division multiplexer. Both ends of the optical isolator are provided with the polarization controllers; the wavelength division multiplexer, the photonic crystal fiber, the fiber coupling follower, the polarization controllers and the optical isolator are welded by optical fibers to form an annular cavity; a transmission-type semiconductor saturable absorption mirror is arranged between the wavelength division multiplexer and the photonic crystal fiber and is used for mode locking of the ytterbium-doped ultrashort pulse fiber laser; and one segment of the optical fiber between the wavelength division multiplexer and the transmission-type semiconductor saturable absorption mirror is an ytterbium-doped optical fiber. The ytterbium-doped ultrashort pulse fiber laser can be self-started and has wide application prospect.
Description
Technical field
The present invention relates to a kind of ultrashort pulse fiber laser, what be specifically related to the compensation of a kind of chamber internal dispersion mixes the ytterbium ultrashort pulse fiber laser.
Background technology
Fiber laser is compared with traditional solid state laser,, light-phototranstormation efficiency height little with its volume, the high many advantages of stability and obtained extensive studies. wherein, and especially can be used for the Er that mixes of communication
3+Fiber laser and amplifier research are at most, with the Er that mixes that is applied to communication band
3+Fiber laser is compared, and the research of ytterbium-doping optical fiber laser is less, along with the raising of laser processing to high power, high-peak power demand, makes ytterbium-doping optical fiber laser also obtain attention day by day.
Concerning the emission spectra of ytterbium ion, in silica fiber, present very strong positive dispersion, therefore want to make the shorter pulse of ytterbium-doping optical fiber laser generation must align the light pulse of warbling and carry out dispersion compensation.In ytterbium-doping optical fiber laser, the device that can be used for dispersion compensation mainly contains grating, photonic crystal fiber, chirped fiber grating, carbon nanotube etc.Do in the annular chamber ytterbium-doping optical fiber laser of chromatic dispersion compensation at photonic crystal fiber (PCF), at present seen report, the startup of locked mode mainly starts by acousto-optic modulator (AOM), and the annular chamber ytterbium-doping optical fiber laser can not self-starting.
Summary of the invention
The compensation of a kind of chamber of the present invention internal dispersion mix the ytterbium ultrashort pulse fiber laser, it has solved mixes the technical problem that the ytterbium ultrashort pulse fiber laser can't be realized self-starting in the background technology.
Technical solution of the present invention is:
The compensation of a kind of chamber internal dispersion mix the ytterbium ultrashort pulse fiber laser, comprise the semiconductor pumping sources 2 that is connected with wavelength division multiplexer 1 input, the photonic crystal fiber 3 that is connected successively with wavelength division multiplexer 1 output, optical fiber coupling follower 4, Polarization Controller 5 and optical isolator 6, the two ends of described optical isolator 6 are equipped with Polarization Controller 5, described wavelength division multiplexer 1, photonic crystal fiber 3, optical fiber coupling follower 4, Polarization Controller 5 and optical isolator 6 constitute an annular chamber by fused fiber splice
Its special character is: be provided with transmission-type semiconductor saturable absorbing mirror 7 between described wavelength division multiplexer 1 and the photonic crystal fiber 3, described transmission-type semiconductor saturable absorbing mirror 7 is used for the locked mode that this mixes the ytterbium ultrashort pulse fiber laser; Optical fiber between described wavelength division multiplexer 1 and the transmission-type semiconductor saturable absorbing mirror 7 has one section to be Yb dosed optical fiber 8.
Above-mentioned except that photonic crystal fiber 3 and Yb dosed optical fiber 8, the used optical fiber of other parts is general single mode fiber.
Above-mentioned optical isolator 6 all can for the relevant optical isolator of polarization or the optical isolator of polarization irrelevant.
Above-mentioned Polarization Controller 5 is at line style Polarization Controller or or wave plate formula Polarization Controller or electronic Polarization Controller.
The present invention gives and adds transmission-type semiconductor saturable absorbing mirror (SESAM) in the annular chamber, utilize transmission-type semiconductor saturable absorbing mirror (SESAM) to come locked mode, (PCF) carries out pulse compression with photonic crystal fiber, and the full optical fiber of subpicosecond that can obtain self-starting is mixed the ytterbium ultrashort pulse fiber laser.Transmission-type SESAM can be directly used in annular chamber, and reflectively needs circulator to connect just to can be used for annular chamber, therefore adopts transmission-type semiconductor saturable absorbing mirror (SESAM) to come locked mode just can realize the laser self-starting
Description of drawings
Fig. 1 is a structural representation of the present invention.
Drawing reference numeral explanation: 1-wavelength division multiplexer, 2-semiconductor pumping sources, 3-photonic crystal fiber, 4-optical fiber coupling follower, 5-Polarization Controller, 6-optical isolator, 7-transmission-type semiconductor saturable absorbing mirror, 8-Yb dosed optical fiber.
Embodiment
Referring to Fig. 1, the compensation of a kind of chamber internal dispersion mix the ytterbium ultrashort pulse fiber laser, comprise the semiconductor pumping sources 2 that is connected with wavelength division multiplexer 1 input, the photonic crystal fiber 3 that is connected successively with wavelength division multiplexer 1 output, optical fiber coupling follower 4, Polarization Controller 5 and optical isolator 6, the two ends of optical isolator 6 are equipped with Polarization Controller 5, described wavelength division multiplexer 1, photonic crystal fiber 3, optical fiber coupling follower 4, Polarization Controller 5 and optical isolator 6 constitute an annular chamber by fused fiber splice, be provided with transmission-type semiconductor saturable absorbing mirror 7 between wavelength division multiplexer 1 and the photonic crystal fiber 3, transmission-type semiconductor saturable absorbing mirror 7 is used for this locked mode of mixing the ytterbium ultrashort pulse fiber laser; Optical fiber between wavelength division multiplexer 1 and the transmission-type semiconductor saturable absorbing mirror 7 has one section to be Yb dosed optical fiber 8, and wherein Polarization Controller 5 is at line style Polarization Controller or wave plate formula Polarization Controller or electronic Polarization Controller.。
Except that photonic crystal fiber and Yb dosed optical fiber, the used optical fiber of other parts is general single mode fiber in the structure of the present invention.
The present invention is because the locked mode device is the transmission-type semiconductor saturable absorbing mirror, so optical isolator is the relevant optical isolator of polarization or the optical isolator of polarization irrelevant.Here, isolator just plays the effect that makes the light unidirectional operation.And if without saturable absorber, the principle of annular chamber locked mode is that an a kind of kind saturable absorber based on the nonlinear polarization rotation comes locked mode, at this time must be polarization relative photo circulator, and can not be polarization independent optical isolator.
During concrete work, semiconductor pumping sources tail optical fiber output wavelength is the laser of 976nm, semiconductor pumping sources output laser is coupled into Yb dosed optical fiber by 980nm/1053nm wavelength division multiplexer WDM, the laser that produces through wavelength Conversion passes through the transmission-type semiconductor saturable absorbing mirror, the laser that sees through the transmission-type semiconductor saturable absorbing mirror arrives optical fiber coupling follower via photonic crystal fiber again, Polarization Controller through optical isolator one end, behind the Polarization Controller of the optical isolator and the optical isolator other end, import 1053 ends of 980nm/1053nm wavelength division multiplexer WDM again.
Claims (4)
1. a chamber internal dispersion compensation mixes the ytterbium ultrashort pulse fiber laser, comprise the semiconductor pumping sources (2) that is connected with wavelength division multiplexer (1) input, the photonic crystal fiber (3) that is connected successively with wavelength division multiplexer (1) output, optical fiber coupling follower (4), Polarization Controller (5) and optical isolator (6), the two ends of described optical isolator (6) are equipped with Polarization Controller (5), described wavelength division multiplexer (1), photonic crystal fiber (3), optical fiber coupling follower (4), Polarization Controller (5) and optical isolator (6) constitute an annular chamber by fused fiber splice
It is characterized in that: be provided with transmission-type semiconductor saturable absorbing mirror (7) between described wavelength division multiplexer (1) and the photonic crystal fiber (3), described transmission-type semiconductor saturable absorbing mirror (7) is used for the locked mode that this mixes the ytterbium ultrashort pulse fiber laser; Optical fiber between described wavelength division multiplexer (1) and the transmission-type semiconductor saturable absorbing mirror (7) has one section to be Yb dosed optical fiber (8).
According to the described chamber of claim 1 internal dispersion compensation mix the ytterbium ultrashort pulse fiber laser, it is characterized in that: described except that photonic crystal fiber (3) and Yb dosed optical fiber (8), the used optical fiber of other parts is general single mode fiber.
According to claim 1 or the compensation of 2 described chamber internal dispersions mix the ytterbium ultrashort pulse fiber laser, it is characterized in that: the optical isolator that described optical isolator (6) is correlated with for polarization or the optical isolator of polarization irrelevant.
According to the described chamber of claim 3 internal dispersion compensation mix the ytterbium ultrashort pulse fiber laser, it is characterized in that: described Polarization Controller (5) is at line style Polarization Controller or wave plate formula Polarization Controller or electronic Polarization Controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810236574A CN101771231A (en) | 2008-12-31 | 2008-12-31 | Ytterbium-doped ultrashort pulse fiber laser for dispersion compensation in cavity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810236574A CN101771231A (en) | 2008-12-31 | 2008-12-31 | Ytterbium-doped ultrashort pulse fiber laser for dispersion compensation in cavity |
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| CN101771231A true CN101771231A (en) | 2010-07-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924319A (en) * | 2010-09-02 | 2010-12-22 | 中国科学院西安光学精密机械研究所 | All-fiber structure laser system capable of generating high-energy femtosecond pulse |
| CN101995246A (en) * | 2010-08-13 | 2011-03-30 | 北京大学 | Laser gyroscope based on parallel feedback |
| CN101997263A (en) * | 2010-08-13 | 2011-03-30 | 北京大学 | Ultra-narrow line width ring cavity laser based on parallel feedback |
| CN104242032A (en) * | 2014-08-11 | 2014-12-24 | 北京交通大学 | Compound type mode locker system |
| CN109378694A (en) * | 2018-12-20 | 2019-02-22 | 北京航空航天大学 | Broad band wavelength adjustable dispersion management type all -fiber ultrafast pulsed laser device and system |
-
2008
- 2008-12-31 CN CN200810236574A patent/CN101771231A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995246A (en) * | 2010-08-13 | 2011-03-30 | 北京大学 | Laser gyroscope based on parallel feedback |
| CN101997263A (en) * | 2010-08-13 | 2011-03-30 | 北京大学 | Ultra-narrow line width ring cavity laser based on parallel feedback |
| CN101995246B (en) * | 2010-08-13 | 2012-11-07 | 北京大学 | Laser gyroscope based on parallel feedback |
| CN101924319A (en) * | 2010-09-02 | 2010-12-22 | 中国科学院西安光学精密机械研究所 | All-fiber structure laser system capable of generating high-energy femtosecond pulse |
| CN104242032A (en) * | 2014-08-11 | 2014-12-24 | 北京交通大学 | Compound type mode locker system |
| CN104242032B (en) * | 2014-08-11 | 2017-10-10 | 北京交通大学 | A kind of compound mode locker system |
| CN109378694A (en) * | 2018-12-20 | 2019-02-22 | 北京航空航天大学 | Broad band wavelength adjustable dispersion management type all -fiber ultrafast pulsed laser device and system |
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Application publication date: 20100707 |