CN101154789A - Optical Parametric Amplification System Based on All-Fiber Laser - Google Patents
Optical Parametric Amplification System Based on All-Fiber Laser Download PDFInfo
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- CN101154789A CN101154789A CNA2006101046864A CN200610104686A CN101154789A CN 101154789 A CN101154789 A CN 101154789A CN A2006101046864 A CNA2006101046864 A CN A2006101046864A CN 200610104686 A CN200610104686 A CN 200610104686A CN 101154789 A CN101154789 A CN 101154789A
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- 230000003321 amplification Effects 0.000 title claims abstract description 37
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 37
- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 238000005086 pumping Methods 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 230000001360 synchronised effect Effects 0.000 claims abstract description 7
- 239000013078 crystal Substances 0.000 claims description 26
- 239000013307 optical fiber Substances 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 238000012546 transfer Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000008710 crystal-8 Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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Abstract
The invention relates to an optical parametric amplification system based on an all-fiber laser. The technical solution of the invention is as follows: the invention comprises a pumping source, a signal source, a synchronous generator, an amplifier and a compressor, wherein the signal source triggers the synchronous generator, the synchronous generator controls the pumping source, the signal source and the pumping source are simultaneously connected into the amplifier, and the amplifier is connected into the compressor. The invention provides an optical parametric amplification system based on an all-fiber laser, which has the advantages of compact structure, stable performance, good beam quality, high signal-to-noise ratio and high one-way gain, and aims to solve the technical problems of difficult maintenance, low stability, non-compact structure and easy generation of optical damage of the whole system of a chirped pulse optical parametric amplifier in the background technology.
Description
Technical field
The present invention relates to a kind of optical parameter amplification system based on full-optical-fiber laser.
Background technology
Energy is superpower, the extremely development of short femtosecond laser of pulse duration, and the research that directly drives physics, chemistry, biology, material and information science enters microcosmic ultrafast process field.Especially utilize chirped pulse optical parameter amplifying technique to produce that superpower, ultrashort femtosecond laser has in fields such as high field physics, X ray, Ah second's science and Image Information Processing technology and important use is worth.Research and development compact conformation, little, the stable high chirped pulse photoparametric amplifier of volume seem particularly important.
Traditional chirped pulse photoparametric amplifier, generally be made of devices such as femtosecond oscillator, stretcher, amplifier and compressor reducers, the amplifier of this kind structure can cause that whole system is difficult to safeguard, stability is not high, structure is not compact and easily produce shortcoming such as optical damage.
Summary of the invention
The present invention is for the whole system that the chirped pulse photoparametric amplifier that solves in the background technology exists is difficult to safeguard, stability is not high, structure is not compact and easily produce the technical problem of optical damage, and a kind of compact conformation, stable performance, good beam quality, signal to noise ratio height, the optical parameter amplification system based on full-optical-fiber laser that gain by one path is high are provided.
Technical solution of the present invention is: the present invention is a kind of optical parameter amplification system based on full-optical-fiber laser, its special character is: this amplification system comprises pumping source 29, signal source 22, synchronizing generator 33, amplifier 34 and compressor reducer 30, signal source 22 triggering synchronous generators 33, synchronizing generator 33 control pumping sources 29, signal source 22 inserts amplifier 34 simultaneously with pumping source 29, and amplifier 34 inserts compressor reducer 30.
Above-mentioned pumping source 29 adopts Seeded PR II 8010 type macro-energy single longitudinal modes to transfer Q Nd:YAG laser or ps level pumping source.
Above-mentioned signal source 22 adopts fiber laser.
Above-mentioned synchronizing generator 33 comprises prism 25, prism 26, Pockers cell 27,5046E (Pockers cell driving power) 23, DG535 (digit pulse time-delay/generator) 24, prism 25, prism 26 are separately positioned on Pockers cell 27 both sides, 5046E23, DG53524 join with Pockers cell 27 respectively, 5046E23 and DG53524 join, prism 26 inserts 5046E23, and DG53524 inserts pumping source 29.
Above-mentioned amplifier 34 comprises beam splitter 1, half-wave plate 2, polarizer 3, biconvex lens 4, vacuum tube 5, biconvex lens 6, dichroic mirror 7, second level amplification crystal 8, absorption cell 9, high threshold film speculum 10, half-wave plate 11, polarizer 12, biconvex lens 13, vacuum tube 14, biconvex lens 15, dichroic mirror 16, first order amplification crystal 17, absorption cell 18, biconvex lens 19, biconvex lens 20, changes polariscope 21, speculum 28, dichroic mirror 31 and change polariscope 32; Send out successively on the light path of synchronizing generator 33 outgoing and be equipped with speculum 28, commentaries on classics polariscope 21, biconvex lens 20, dichroic mirror 16, first order amplification crystal 17, dichroic mirror 31, biconvex lens 19, dichroic mirror 7, second level amplification crystal 8, change polariscope 32 and compressor reducer 30; Pumping source 29 is by beam splitter 1 outgoing two-way light, be disposed with half-wave plate 2, polarizer 3, biconvex lens 4, vacuum tube 5, biconvex lens 6, second level amplification crystal 8 and absorption cell 9 on one tunnel light path, be disposed with high threshold film speculum 10, half-wave plate 11, polarizer 12, biconvex lens 13, vacuum tube 14, biconvex lens 15, first order amplification crystal 17 and absorption cell 18 on another road light path.
Above-mentioned biconvex lens 20 is 1,2 or 3.
Above-mentioned biconvex lens 19 is 1,2 or 3.
Crystal 8 is amplified in the above-mentioned second level, first order amplification crystal 17 is a bbo crystal.
The present invention is a branch of flashlight with fiber laser output, after Pockers cell is chosen pulse, directly enter in the nonlinear crystal and carry out the optical parameter coupling with a branch of arrowband pump light synchronous, the high-energy nanosecond, produce the promptly idle light of three-beam simultaneously, in the coupling process energy from the pump light pulses switch to signal pulse, thereby signal pulse is exaggerated, and the signal pulse after the amplification arrives nearly Fourier transform limit with double grating compressor compresses simple in structure.Therefore the present invention has adopted fiber laser, amplifier and compressor reducer, and the 8 font chamber ytterbium-doping optical fiber lasers that utilize nonlinear optical fiber annular mirror locked mode have self-starting, long-time stable mode-locking, seldom are subjected to the characteristics of the influence that external environment changes, adopt integrated passive mode locking ytterbium-doping optical fiber laser as seed source, when having avoided optical damage, improved the stability of whole system greatly, make the whole system compact conformation, be convenient to safeguard.
Description of drawings
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is the structural representation of the embodiment of the invention;
Fig. 3 is the pulse curve figure of the incoming signal light of the embodiment of the invention;
Fig. 4 is the one-level amplifying signal gain of light figure of the embodiment of the invention;
Fig. 5 is the secondary amplifying signal gain of light figure of the embodiment of the invention;
Fig. 6 is the incoming signal light and the amplifying signal light spectrogram of the embodiment of the invention;
Fig. 7 is the ideler frequency light spectrogram of the embodiment of the invention.
Description of reference numerals is as follows:
The 1-beam splitter, the 2-half-wave plate, the 3-polarizer, the 4-biconvex lens, the 5-vacuum tube, the 6-biconvex lens, the 7-dichroic mirror, crystal is amplified in the 8-second level, the 9-absorption cell, 10-high threshold film speculum, the 11-half-wave plate, the 12-polarizer, the 13-biconvex lens, the 14-vacuum tube, the 15-biconvex lens, the 16-dichroic mirror, the 17-first order is amplified crystal, the 18-absorption cell, the 19-biconvex lens, the 20-biconvex lens, 21-changes polariscope, the 22-signal source, 23-5046E (Pockers cell driving power), 24-DG535 (digit pulse time-delay/generator), the 25-prism, the 26-prism, the 27-Pockers cell, the 28-speculum, the 29-pumping source, the 30-compressor reducer, the 31-dichroic mirror, 32-changes polariscope, the 33-synchronizing generator, the 34-amplifier.
Embodiment
Referring to Fig. 1, the present invention includes pumping source 29, signal source 22, synchronizing generator 33, amplifier 34 and compressor reducer 30, signal source 22 triggering synchronous generators 33, synchronizing generator 33 control pumping sources 29, signal source 22 inserts amplifier 34 simultaneously with pumping source 29, and amplifier 34 inserts compressor reducer 30.
Wherein pumping source 29 adopts Seeded PR II 8010 type macro-energy single longitudinal modes to transfer Q Nd:YAG laser or ps level pumping source.
Signal source 22 adopts fiber laser.
Referring to Fig. 2, in the specific embodiment of the utility model, its synchronizing generator 33 comprises prism 25, prism 26, Pockers cell 27,5046E (Pockers cell driving power) 23, DG535 (digit pulse time-delay/generator) 24, prism 25, prism 26 are separately positioned on Pockers cell 27 both sides, 5046E23, DG53524 join with Pockers cell 27 respectively, 5046E23 and DG53524 join, and prism 26 inserts 5046E23, and DG53524 inserts pumping source 29.Amplifier 34 comprises beam splitter 1, half-wave plate 2, polarizer 3, biconvex lens 4, vacuum tube 5, biconvex lens 6, dichroic mirror 7, second level amplification bbo crystal 8, absorption cell 9, high threshold film speculum 10, half-wave plate 11, polarizer 12, biconvex lens 13, vacuum tube 14, biconvex lens 15, dichroic mirror 16, first order amplification bbo crystal 17, absorption cell 18, biconvex lens 19, biconvex lens 20, changes polariscope 21, speculum 28, dichroic mirror 31 and change polariscope 32; Be disposed with speculum 28, commentaries on classics polariscope 21, biconvex lens 20, dichroic mirror 16, first order amplification bbo crystal 17, dichroic mirror 31, biconvex lens 19, dichroic mirror 7, second level amplification bbo crystal 8 on the light path of synchronizing generator 33 outgoing, change polariscope 32 and compressor reducer 30; Pumping source 29 is by beam splitter 1 outgoing two-way light, be disposed with half-wave plate 2, polarizer 3, biconvex lens 4, vacuum tube 5, biconvex lens 6, second level amplification bbo crystal 8 and absorption cell 9 on one tunnel light path, be disposed with high threshold film speculum 10, half-wave plate 11, polarizer 12, biconvex lens 13, vacuum tube 14, biconvex lens 15, first order amplification bbo crystal 17 and absorption cell 18 on another road light path.
Wherein biconvex lens 20 can be 1,2 or 3, and convex lens 19 are 1,2 or 3.
When the present invention works, the 360ps of fiber laser 22 outputs, the seed light that centre wavelength is 1053nm are divided into two bundles with Glan prism 24, a branch ofly receive as Pockers cell 27 power supply triggering signals with PIN, another bundle enters Pockers cell 27 to carry out pulse and chooses.Output signal with Pockers cell 27 control power supplys triggers DG535, behind the delayed 170 μ s of a certain output channel of DG535, triggers the Q-switch of pump light, has reached seed Synchronization Control pump light, and synchronization accuracy reaches 500ps.Convert the polarization direction of pulse seed light to horizontal polarization, inject bbo crystal.The pump light that pumping source 29 sends carries out optical parameter with the pulse seed light and amplifies in bbo crystal behind high threshold film speculum, half-wave plate, polarizer, biconvex lens, vacuum tube, the signal pulse after the amplification is compressed near Fourier transform limit with compressor reducer 30.
Referring to Fig. 3-7, this for be 1.5nJ when the seed source single pulse energy, design sketch when repetition rate is 3.8MHz, two-stage pumping light intensity is 350MW/cm
2, energy is 150mJ.Amplification process adopts non-colinear, first kind phase matched mode.Amplification medium adopts bbo crystal, is of a size of 6mm * 6mm * 16mm, and cutting angle is θ=22.86 °, Φ=0 °.The non-colinear angle is 0.67 ° (the crystal exterior angle is 1.1 °).Total net gain reaches 4 * 10
6Final output energy is 6mJ, energy hunting＜2%.
Claims (8)
1. optical parameter amplification system based on full-optical-fiber laser, it is characterized in that: this amplification system comprises pumping source (29), signal source (22), synchronizing generator (33), amplifier (34) and compressor reducer (30), described pumping source (29) inserts synchronizing generator (33) and amplifier (34) respectively, described signal source (22) inserts synchronizing generator (33), described synchronizing generator (33) inserts amplifier (34), and described amplifier (34) inserts compressor reducer (30).Signal source (22) triggering synchronous generator (33), synchronizing generator (33) control pumping source (29), signal source (22) inserts amplifier (34) simultaneously with pumping source (29), and amplifier (34) inserts compressor reducer (30).
2. the optical parameter amplification system based on full-optical-fiber laser according to claim 1 is characterized in that: described pumping source (29) adopts Seeded PR II 8010 type macro-energy single longitudinal modes to transfer QNd:YAG laser or ps level pumping source.
3. the optical parameter amplification system based on full-optical-fiber laser according to claim 1 is characterized in that: described signal source (22) adopts fiber laser.
4. the optical parameter amplification system based on full-optical-fiber laser according to claim 1, it is characterized in that: described synchronizing generator (33) comprises prism (25), prism (26), Pockers cell (27), 5046E (23), DG535 (24), described prism (25), prism (26) are separately positioned on Pockers cell (27) both sides, described 5046E (23), DG535 (24) join with Pockers cell (27) respectively, described 5046E (23) and DG535 (24) join, described prism (26) inserts 5046E (23), and described DG535 (24) inserts pumping source (29).
5. the optical parameter amplification system based on full-optical-fiber laser according to claim 1 is characterized in that: described amplifier (34) comprises beam splitter (1), half-wave plate (2), polarizer (3), biconvex lens (4), vacuum tube (5), biconvex lens (6), dichroic mirror (7), crystal (8) is amplified in the second level, absorption cell (9), high threshold film speculum (10), half-wave plate (11), polarizer (12), biconvex lens (13), vacuum tube (14), biconvex lens (15), dichroic mirror (16), the first order is amplified crystal (17), absorption cell (18), biconvex lens (19), biconvex lens (20), change polariscope (21), speculum (28), dichroic mirror (31) and commentaries on classics polariscope (32); Be disposed with speculum (28), commentaries on classics polariscope (21), biconvex lens (20), dichroic mirror (16), first order amplification crystal (17), dichroic mirror (31), biconvex lens (19), dichroic mirror (7) on the light path of described synchronizing generator (33) outgoing, amplify crystal (8), change polariscope (32) and compressor reducer (30); Described pumping source (29) is by beam splitter (1) outgoing two-way light, be disposed with half-wave plate (2), polarizer (3), biconvex lens (4), vacuum tube (5), biconvex lens (6), second level amplification crystal (8) and absorption cell (9) on one tunnel light path, be disposed with high threshold film speculum (10), half-wave plate (11), polarizer (12), biconvex lens (13), vacuum tube (14), biconvex lens (15), first order amplification crystal (17) and absorption cell (18) on another road light path.
6. the optical parameter amplification system based on full-optical-fiber laser according to claim 5 is characterized in that: described biconvex lens (20) is 1,2 or 3.
7. according to claim 5 or 6 described optical parameter amplification systems based on full-optical-fiber laser, it is characterized in that: described biconvex lens (19) is 1,2 or 3.
8. according to claim 4 or 5 described optical parameter amplification systems based on full-optical-fiber laser, it is characterized in that: crystal (8) is amplified in the described second level, the first order is amplified crystal (17) and is bbo crystal.
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| CNB2006101046864A CN100561808C (en) | 2006-09-30 | 2006-09-30 | Optical Parametric Amplification System Based on All-Fiber Laser |
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| CNB2006101046864A CN100561808C (en) | 2006-09-30 | 2006-09-30 | Optical Parametric Amplification System Based on All-Fiber Laser |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820130A (en) * | 2010-04-01 | 2010-09-01 | 中国工程物理研究院激光聚变研究中心 | Method for adjusting non-collinear once chirped pulse optical parameter amplifying system |
| CN102368590A (en) * | 2011-11-29 | 2012-03-07 | 北京航空航天大学 | Control driving system of short pulse laser system |
| CN103034013A (en) * | 2012-12-14 | 2013-04-10 | 湖南大学 | Population inversion-free laser energy amplifying system based on long-relaxation-time optical fiber |
| CN105514778A (en) * | 2015-12-29 | 2016-04-20 | 哈尔滨工业大学 | Tunable laser pumping system and method for obtaining tunable laser by using same |
| CN107123925A (en) * | 2017-05-02 | 2017-09-01 | 中国科学院西安光学精密机械研究所 | Laser and method for compressing pulse width and improving energy based on gain grating |
| CN109088671A (en) * | 2018-09-14 | 2018-12-25 | 国网西藏电力有限公司 | One kind is based on the distant pump Er-doped fiber transmission method of chirped bypass and system |
| CN110048298A (en) * | 2019-04-28 | 2019-07-23 | 北京航天控制仪器研究所 | A kind of small-sized LONG WAVE INFRARED laser generator |
| CN111736356A (en) * | 2020-07-17 | 2020-10-02 | 西安交通大学 | Variable multi-beam MOPA laser output system and method based on light field regulation |
| CN111822850A (en) * | 2020-07-17 | 2020-10-27 | 西安交通大学 | Multi-beam laser amplification scanning processing system and method based on light field regulation |
| CN111952828A (en) * | 2020-08-21 | 2020-11-17 | 西南交通大学 | Scheme and device for improving signal light gain by adopting twin-core and twin-pump optical fiber parametric amplifier |
| CN112615244A (en) * | 2020-12-16 | 2021-04-06 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Medium wave single resonance optical frequency conversion device |
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| KR100280968B1 (en) * | 1997-12-10 | 2001-02-01 | 윤종용 | Optical fiber amplifier using a synchronized etal on filter |
| JP3089253B2 (en) * | 1999-02-18 | 2000-09-18 | 郵政省通信総合研究所長 | Regeneration mode-locked laser using Fabry-Perot filter |
| CN201015020Y (en) * | 2006-09-30 | 2008-01-30 | 中国科学院西安光学精密机械研究所 | Optical Parametric Amplification System Based on All-Fiber Laser |
-
2006
- 2006-09-30 CN CNB2006101046864A patent/CN100561808C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101820130A (en) * | 2010-04-01 | 2010-09-01 | 中国工程物理研究院激光聚变研究中心 | Method for adjusting non-collinear once chirped pulse optical parameter amplifying system |
| CN102368590A (en) * | 2011-11-29 | 2012-03-07 | 北京航空航天大学 | Control driving system of short pulse laser system |
| CN103034013A (en) * | 2012-12-14 | 2013-04-10 | 湖南大学 | Population inversion-free laser energy amplifying system based on long-relaxation-time optical fiber |
| CN105514778A (en) * | 2015-12-29 | 2016-04-20 | 哈尔滨工业大学 | Tunable laser pumping system and method for obtaining tunable laser by using same |
| CN105514778B (en) * | 2015-12-29 | 2018-09-07 | 哈尔滨工业大学 | A kind of pumping system of tunable laser and the method that tunable laser is obtained using the system |
| CN107123925B (en) * | 2017-05-02 | 2019-04-02 | 中国科学院西安光学精密机械研究所 | Laser and method for compressing pulse width and improving energy based on gain grating |
| CN107123925A (en) * | 2017-05-02 | 2017-09-01 | 中国科学院西安光学精密机械研究所 | Laser and method for compressing pulse width and improving energy based on gain grating |
| CN109088671A (en) * | 2018-09-14 | 2018-12-25 | 国网西藏电力有限公司 | One kind is based on the distant pump Er-doped fiber transmission method of chirped bypass and system |
| CN110048298A (en) * | 2019-04-28 | 2019-07-23 | 北京航天控制仪器研究所 | A kind of small-sized LONG WAVE INFRARED laser generator |
| CN110048298B (en) * | 2019-04-28 | 2020-08-14 | 北京航天控制仪器研究所 | Light and small-sized long-wave infrared laser generating device |
| CN111736356A (en) * | 2020-07-17 | 2020-10-02 | 西安交通大学 | Variable multi-beam MOPA laser output system and method based on light field regulation |
| CN111822850A (en) * | 2020-07-17 | 2020-10-27 | 西安交通大学 | Multi-beam laser amplification scanning processing system and method based on light field regulation |
| CN111952828A (en) * | 2020-08-21 | 2020-11-17 | 西南交通大学 | Scheme and device for improving signal light gain by adopting twin-core and twin-pump optical fiber parametric amplifier |
| CN112615244A (en) * | 2020-12-16 | 2021-04-06 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Medium wave single resonance optical frequency conversion device |
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