CN103296571B - Pumping annular chamber regenerative amplifier - Google Patents
Pumping annular chamber regenerative amplifier Download PDFInfo
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- CN103296571B CN103296571B CN201310163820.8A CN201310163820A CN103296571B CN 103296571 B CN103296571 B CN 103296571B CN 201310163820 A CN201310163820 A CN 201310163820A CN 103296571 B CN103296571 B CN 103296571B
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Abstract
The invention discloses a kind of pumping annular chamber regenerative amplifier, the seed light of being sent by mode locking oscillator by the first film polarizer reflects to electric light potassium dideuterium-hydrogen phosphate crystal, electric light potassium dideuterium-hydrogen phosphate crystal when first time receives seed light not making alive directly send to the second film polarizer, later to polarised light apply 1/2nd voltages make through the polarization direction half-twist of orthogonal polarized light, when the energy of polarised light reaches maximum, end voltage supplies, polarised light is exported, and by the second film polarizer, first plane mirror, yag crystal rod, / 2nd wave plates, second plane mirror and the 3rd plane mirror process polarised light successively, make regeneration seed light can not transmit light path along seed light to return, effectively improve the stability of reproduced light.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of pumping annular chamber regenerative amplifier.
Background technology
In order to obtain more high-peak power and larger single pulse energy, need to carry out light amplification to seed light, the amplification mode usually adopted has single-pass, passes to and regenerative amplification mode more.Current regenerative amplifier is a stable resonant cavity, can ensure seed light and the complete conllinear coupling of pump light, the beam quality adding amplification efficiency He exported.
Regenerative amplifier seed light lead-in mode and the reproduced light of normal employing in current industry derive mode as shown in Figure 1, comprise the first polarizer 101,1/2nd wave plate 102, faraday isolator 103 and the second polarizer 104.In regenerative amplifying process, seed light, after regeneration intracavity round trip exports for tens times, has some reproduced lights to return seeds chamber, have impact on the stability of seed light.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide a kind of pumping annular chamber regenerative amplifier, returns seeds chamber thus the problem affecting the stability of seed light in order to solve when seed light in prior art exports.
Object of the present invention is mainly achieved through the following technical solutions:
A kind of pumping annular chamber regenerative amplifier, comprising:
The first film polarizer, the seed light for the vertical polarization of being sent by mode locking oscillator reflects to electric light potassium dideuterium-hydrogen phosphate crystal, also the orthogonal polarized light that described 3rd plane mirror sends is sent to described electric light potassium dideuterium-hydrogen phosphate crystal;
Described electric light potassium dideuterium-hydrogen phosphate crystal, for when first time receives the seed light of the vertical polarization that described the first film polarizer sends not making alive directly send to the second film polarizer, first time be sent completely after-applied 1/2nd voltages make through the polarization direction half-twist of orthogonal polarized light, and the polarised light after changing polarization direction is sent to described second film polarizer, when the energy of polarised light reaches maximum, end voltage supplies, and is exported by polarised light;
Described second film polarizer, for the horizontal polarization light output that described electric light potassium dideuterium-hydrogen phosphate crystal is sent, the orthogonal polarized light that described electric light potassium dideuterium-hydrogen phosphate crystal sends is reflected to the first plane mirror, wherein, described the first film polarizer is identical with described second film polarizer placement direction;
Described first plane mirror, the polarised light for being sent by described second film polarizer reflects to yag crystal rod;
Described yag crystal rod, carries out gain for the polarised light come described first plane mirror reflection;
/ 2nd wave plates, become vertical direction polarised light for the horizontal direction polarised light sent by described yag crystal rod, vertical direction polarised light becomes horizontal direction polarised light, and the polarised light after changing direction is sent to the second plane mirror;
Described second plane mirror, the polarised light for being sent by described 1/2nd wave plates reflects to the 3rd plane mirror;
Described 3rd plane mirror, sends to described the first film polarizer for the polarised light described second plane mirror reflection come.
Preferably, the number of turns of polarised light circulation when the energy calculating polarised light according to the gain degree of described seed light and described yag crystal rod in advance reaches maximum, when reach polarised light ceiling capacity circulation the number of turns after, remove described electric light potassium dideuterium-hydrogen phosphate crystal voltage.
Preferably, also oscilloscope is comprised;
Described oscilloscope, for the amplification process of Real Time Observation seed light, when the energy of polarised light reaches maximum, removes described electric light potassium dideuterium-hydrogen phosphate crystal voltage.
Preferably, the pump mode of described yag crystal rod is continuous pumping or pulse pump, and when the pump mode of described yag crystal rod is continuous pumping, pumping current is 20A ~ 30A.
Preferably, the diameter of described yag crystal rod is Ф 3mm ~ Ф 4mm, and length is 65mm ~ 75mm.
Preferably, the logical light face of described yag crystal rod is coated with the double-colored anti-reflection film of 808nm and 1064nm.
Preferably, the reflection angle of described first plane mirror is 30 ° ~ 40 °.
Preferably, the reflection angle of described second plane mirror is 45 °.
Preferably, the reflection angle of described 3rd plane mirror is 45 °.
Preferably, described mode locking oscillator mixes rubidium Yttrium Orthovanadate locked mode psec oscillator, and power output is 300mw, and wavelength is 1064nm, and repetition rate is 91.8MHz, pulse duration 10ps, single pulse energy 3.3nJ.
Beneficial effect of the present invention is as follows:
The invention provides a kind of pumping annular chamber regenerative amplifier, make regeneration seed light can not transmit light path along seed light and return, effectively improve the stability of reproduced light.
Other features and advantages of the present invention will be set forth in the following description, and, becoming apparent from specification of part, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Fig. 1 is regenerative amplifier structural representation of the prior art;
Fig. 2 is the pumping annular chamber regenerative amplifier structural representation of the embodiment of the present invention;
Fig. 3 be the embodiment of the present invention not by the stable seed light oscillogram that reproduced light affects;
Fig. 4 is the output reproduced light oscillogram of the embodiment of the present invention.
Embodiment
Specifically describe the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing forms the application's part, and together with embodiments of the present invention for explaining principle of the present invention.For purpose of clarity and simplification, when it may make theme of the present invention smudgy, illustrating in detail of known function and structure in device described herein will be omitted.
Electric light potassium dideuterium-hydrogen phosphate crystal 202 in the embodiment of the present invention is electric light KD*P crystal, and yag crystal rod 205 is Nd:YAG rod.
Embodiments provide a kind of pumping annular chamber regenerative amplifier, see Fig. 2, comprising:
The first film polarizer 201, the seed light for the vertical polarization of being sent by mode locking oscillator reflects to electric light KD*P crystal 202, also the orthogonal polarized light that described 3rd plane mirror 208 sends is sent to described electric light KD*P crystal 202;
Described electric light KD*P crystal 202, for when first time receives the vertical polarization light that described the first film polarizer 201 sends not making alive directly send to the second film polarizer 203, first time be sent completely after-applied 1/2nd voltages make through the polarization direction half-twist of orthogonal polarized light, and the polarised light after changing direction is sent to described second film polarizer 203, when the energy of polarised light reaches maximum, end voltage supplies, and is exported by polarised light; Namely the voltage that electric light KD*P crystal 202 applies is controlled, make to be equivalent to plain film when not applying voltage to this electric light KD*P crystal, when seed light is passed, polarization direction does not change, / 2nd wave plates are equivalent to when applying 1/2nd voltage to this electric light KD*P crystal, seed light is often passed once, polarization direction half-twist;
Described second film polarizer 203, for transmission level polarised light, and reflective vertical polarised light, wherein, described the first film polarizer 201 is identical with described second film polarizer 203 placement direction;
First plane mirror 204, reflects to Nd:YAG rod 205 for the polarised light sent by described second film polarizer 203;
The described logical light face of Nd:YAG rod 205 is coated with the double-colored anti-reflection film of 808nm and 1064nm, reflects the polarised light come carry out gain to described first plane mirror 201;
/ 2nd wave plates 206, for the horizontal direction received polarised light is become vertical direction polarised light, vertical direction polarised light becomes horizontal direction polarised light, and the polarised light after changing direction is sent to the second plane mirror 207;
Described second plane mirror 207, the polarised light for being sent by described 1/2nd wave plates 206 reflects to the 3rd plane mirror 208;
Described 3rd plane mirror 208, sends to described the first film polarizer 201 for described second plane mirror 207 being reflected the polarised light come.
Wherein the embodiment of the present invention is in advance according to the number of turns of the gain degree computation cycles of described seed light and described Nd:YAG rod 205, when reach polarised light ceiling capacity circulation the number of turns after, remove described electric light KD*P crystal 202 voltage.
Or, by the amplification process of oscilloscope Real Time Observation seed light, when the energy of seed light reaches maximum, described electric light KD*P crystal 202 voltage can also be removed.
The pump mode of the Nd:YAG rod 205 in the embodiment of the present invention is continuous pumping or pulse pump, and when the pump mode of described Nd:YAG rod 205 is continuous pumping, pumping current is 20A ~ 30A.
The diameter of described Nd:YAG rod 205 is Ф 3mm ~ Ф 4mm, and length is 65mm ~ 75mm.
Described Nd:YAG rod, is coated with the double-colored anti-reflection film of 808nm and 1064nm for logical light face.
The reflection angle of the first plane mirror 201 described in the embodiment of the present invention is 30 ° ~ 40 °;
The reflection angle of described second plane mirror is 45 °, and the reflection angle of described 3rd plane mirror is 45 °.
Mode locking oscillator described in the embodiment of the present invention mixes rubidium Yttrium Orthovanadate locked mode psec oscillator, i.e. Nd:YVO4 locked mode psec oscillator, and power output is 300mw, and wavelength is 1064nm, and repetition rate is 91.8MHz, pulse duration 10ps, single pulse energy 3.3nJ;
Wherein the light path trend of pumping annular chamber regenerative amplifier is specifically:
The seed light of vertical polarization reflexes to the electric light KD*P crystal 202 of non-high voltage through the first film polarizer 201, the second film polarizer 203 is incided through after electric light KD*P crystal 202, and reflexed to the first plane mirror 204 by the second film polarizer 203, then Nd:YAG rod 205 is entered through the first plane mirror 204 reflection, by after Nd:YAG rod 205 through 1/2nd wave plates 206, the seed light direction half-twist of now vertical polarization, become the seed light of horizontal direction, through the first film polarizer 201 after the second plane mirror 207 and the 3rd plane mirror 208, now, electric light KD*P crystal 202 adds high pressure, seed light is at the first film polarizer 201, first plane mirror 204, multiple oscillation in the ring regenerative amplifiers of the second plane mirror 207 and the 3rd plane mirror 208 composition, and be exaggerated, until the high voltage of electric light KD*P crystal 202 is removed, after amplification laser export through the second film polarizer 203.
In debug process, first block seed light, be added in the electric current of Nd:YAG rod 205, then regulate the first plane mirror 204, realize the vibration of laser.A photodiode is placed after the second plane mirror 207, seed light is injected in regenerative amplifier, with the amplification process gradually of seed light in oscilloscope observation chamber, when seed light is amplified to maximum, remove the voltage on electric light KD*P crystal 202, now seed pulse just can be poured out in chamber.Careful adjustment second plane mirror and 207 and the 3rd plane mirror 208, makes seed light and regeneration pump light reach pattern matching, thus exports more high-energy.
Shown in accompanying drawing 3 is when in this embodiment, regenerative amplifier works, not by the light stable oscillogram that reproduced light affects.
Shown in accompanying drawing 4 is export reproduced light oscillogram in this embodiment.At repetition rate 100Hz, during pumping current 21A, export the amplifying laser of maximum single pulse energy 2.4mJ.
Fig. 3 and Fig. 4 can illustrate that the pumping annular chamber regenerative amplifier that the embodiment of the present invention provides eliminates the problem returning seeds chamber when seed light exports fully, thus improves the stability of seed light.
According to other embodiments of the invention, wherein the first polarizer 201, second polarizer 203 is polarization selector, and those skilled in the art can according to the polarization selector of other type of content choice of the present invention.
In sum, embodiments provide a kind of pumping annular chamber regenerative amplifier, make regeneration seed light can not transmit light path along seed light and return, effectively improve the stability of reproduced light.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (10)
1. a pumping annular chamber regenerative amplifier, is characterized in that, comprising:
The first film polarizer, the seed light for the vertical polarization of being sent by mode locking oscillator reflects to electric light potassium dideuterium-hydrogen phosphate crystal, also the orthogonal polarized light that described 3rd plane mirror sends is sent to described electric light potassium dideuterium-hydrogen phosphate crystal;
Described electric light potassium dideuterium-hydrogen phosphate crystal, for when first time receives the seed light of the vertical polarization that described the first film polarizer sends not making alive directly send to the second film polarizer, first time be sent completely after-applied 1/2nd voltages make through the polarization direction half-twist of orthogonal polarized light, and the polarised light after changing polarization direction is sent to described second film polarizer, when the energy of polarised light reaches maximum, end voltage supplies, and is exported by polarised light;
Described second film polarizer, for the horizontal polarization light output that described electric light potassium dideuterium-hydrogen phosphate crystal is sent, the orthogonal polarized light that described electric light potassium dideuterium-hydrogen phosphate crystal sends is reflected to the first plane mirror, wherein, described the first film polarizer is identical with described second film polarizer placement direction;
Described first plane mirror, the polarised light for being sent by described second film polarizer reflects to yag crystal rod;
Described yag crystal rod, carries out gain for the polarised light come described first plane mirror reflection;
/ 2nd wave plates, become vertical direction polarised light for the horizontal direction polarised light sent by described yag crystal rod, vertical direction polarised light becomes horizontal direction polarised light, and the polarised light after changing direction is sent to the second plane mirror;
Described second plane mirror, the polarised light for being sent by described 1/2nd wave plates reflects to the 3rd plane mirror;
Described 3rd plane mirror, sends to described the first film polarizer for the polarised light described second plane mirror reflection come.
2. pumping annular chamber regenerative amplifier according to claim 1, is characterized in that,
The number of turns of polarised light circulation when the energy calculating polarised light according to the gain degree of described seed light and described yag crystal rod in advance reaches maximum, when reach polarised light ceiling capacity circulation the number of turns after, remove described electric light potassium dideuterium-hydrogen phosphate crystal voltage.
3. pumping annular chamber regenerative amplifier according to claim 1, is characterized in that, also comprise oscilloscope;
Described oscilloscope, for the amplification process of Real Time Observation seed light, when the energy of polarised light reaches maximum, removes described electric light potassium dideuterium-hydrogen phosphate crystal voltage.
4. the pumping annular chamber regenerative amplifier according to claim 1-3 any one, is characterized in that,
The pump mode of described yag crystal rod is continuous pumping or pulse pump, and when the pump mode of described yag crystal rod is continuous pumping, pumping current is 20A ~ 30A.
5. the pumping annular chamber regenerative amplifier according to claim 1-3 any one, is characterized in that,
The diameter of described yag crystal rod is Ф 3mm ~ Ф 4mm, and length is 65mm ~ 75mm.
6. the pumping annular chamber regenerative amplifier according to claim 1-3 any one, is characterized in that, the logical light face of described yag crystal rod is coated with the double-colored anti-reflection film of 808nm and 1064nm.
7. the pumping annular chamber regenerative amplifier according to claim 1-3 any one, is characterized in that, the reflection angle of described first plane mirror is 30 ° ~ 40 °.
8. the pumping annular chamber regenerative amplifier according to claim 1-3 any one, is characterized in that, the reflection angle of described second plane mirror is 45 °.
9. the pumping annular chamber regenerative amplifier according to claim 1-3 any one, is characterized in that, the reflection angle of described 3rd plane mirror is 45 °.
10. the pumping annular chamber regenerative amplifier according to claim 1-3 any one, is characterized in that,
Described mode locking oscillator mixes rubidium Yttrium Orthovanadate locked mode psec oscillator, and its power output is 300mw, and wavelength is 1064nm, and repetition rate is 91.8MHz, pulse duration 10ps, single pulse energy 3.3nJ.
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| CN201310163820.8A CN103296571B (en) | 2013-05-07 | 2013-05-07 | Pumping annular chamber regenerative amplifier |
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| CN201310163820.8A CN103296571B (en) | 2013-05-07 | 2013-05-07 | Pumping annular chamber regenerative amplifier |
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| CN103296571B true CN103296571B (en) | 2015-09-16 |
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| CN104300352B (en) * | 2014-10-16 | 2017-04-26 | 北京工业大学 | Light pulse repetition rate spectrum spreader |
| CN107845947A (en) * | 2017-12-12 | 2018-03-27 | 苏州大学 | Dipulse loop laser amplifier |
| CN110034484A (en) * | 2019-05-15 | 2019-07-19 | 广东石油化工学院 | A kind of novel Nd:YAG single-frequency loop laser resonance cavity |
| CN112350142A (en) * | 2020-10-29 | 2021-02-09 | 江苏拜欧尼克智能科技有限公司 | Motor car brake disc laser regeneration device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6876689B2 (en) * | 2001-06-07 | 2005-04-05 | Light Age, Inc. | Narrow spectral bandwidth tunable pulsed solid-state laser system |
| CN1983744A (en) * | 2005-12-16 | 2007-06-20 | 中国科学院福建物质结构研究所 | Circular laser with continuouslly variable outputting coupler |
| CN203277956U (en) * | 2013-05-07 | 2013-11-06 | 中国电子科技集团公司第十一研究所 | Pumped annular chamber regenerative amplifier |
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| JPH0697560A (en) * | 1992-07-29 | 1994-04-08 | Mitsubishi Electric Corp | Laser beam wavelength converting equipment |
| JP2817709B2 (en) * | 1996-05-15 | 1998-10-30 | 日本電気株式会社 | Laser device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6876689B2 (en) * | 2001-06-07 | 2005-04-05 | Light Age, Inc. | Narrow spectral bandwidth tunable pulsed solid-state laser system |
| CN1983744A (en) * | 2005-12-16 | 2007-06-20 | 中国科学院福建物质结构研究所 | Circular laser with continuouslly variable outputting coupler |
| CN203277956U (en) * | 2013-05-07 | 2013-11-06 | 中国电子科技集团公司第十一研究所 | Pumped annular chamber regenerative amplifier |
Non-Patent Citations (1)
| Title |
|---|
| 高能量高效率钕玻璃再生放大器;王小发等;《中国激光》;20120831;第39卷(第8期);全文 * |
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