CN203277956U - Pumped annular chamber regenerative amplifier - Google Patents
Pumped annular chamber regenerative amplifier Download PDFInfo
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- CN203277956U CN203277956U CN 201320240225 CN201320240225U CN203277956U CN 203277956 U CN203277956 U CN 203277956U CN 201320240225 CN201320240225 CN 201320240225 CN 201320240225 U CN201320240225 U CN 201320240225U CN 203277956 U CN203277956 U CN 203277956U
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- light
- plane mirror
- annular chamber
- regenerative amplifier
- polarised light
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Abstract
The utility model discloses a pumped annular chamber regenerative amplifier. Seed light sent by a mode locked oscillator is reflected to a photoelectric potassium dideuteride phosphate crystal through a first film polaroid; the photoelectric potassium dideuteride phosphate crystal, when receiving the seed light for the first time, sends the seed light directly to a second film polaroid without applying a voltage, afterwards, applies half a voltage to polarized light so as to enable the polarization direction of the vertical polarized light passing through the crystal to be rotated by 90 degrees; when the energy of the polarized light reaches the maximum, the voltage supply is stopped, the polarized light is outputted, and then the polarized light is processed successively through the second film polaroid, a first planar mirror, a yag crystal rod, a half wave-plate, a second planar mirror and a third planar mirror so that regenerative seed light does not return along a seed light transmission optical path and the stability of the regenerative light is efficiently improved.
Description
Technical field
The utility model relates to communication technical field, relates in particular 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 that usually adopts has single-pass, passes to and the regenerative amplification mode more.Regenerative amplifier is a stable resonant cavity at present, can guarantee the complete conllinear coupling of seed light and pump light, has increased the good beam quality of amplification efficiency and output.
In industry, the normal regenerative amplifier seed light lead-in mode that adopts and reproduced light are derived mode as shown in Figure 1 at present, comprise the first polarizer 101,1/2nd wave plates 102, faraday isolator 103 and the second polarizer 104.In the regenerative amplification process, seed light comes and goes tens output in the chamber of regenerating after, there are some reproduced lights can return to seeds chamber, affected the stability of seed light.
Summary of the invention
In view of above-mentioned analysis, the utility model aims to provide a kind of pumping annular chamber regenerative amplifier, thereby returns in order to solve the problem that seeds chamber affects the stability of seed light when in prior art, seed light is exported.
The purpose of this utility model mainly is achieved through the following technical solutions:
A kind of pumping annular chamber regenerative amplifier comprises:
The first film polarizer, the seed light that is used for vertical polarization that mode locking oscillator is sent reflects to the electric light potassium dideuterium-hydrogen phosphate crystal, and the orthogonal polarized light that also described the 3rd plane mirror is sent sends to described electric light potassium dideuterium-hydrogen phosphate crystal;
Described electric light potassium dideuterium-hydrogen phosphate crystal, being used for when receiving for the first time the seed light of the vertical polarization that described the first film polarizer sends not, making alive directly sends to the second film polarizer, be sent completely for the first time the polarization direction half-twist that after-applied 1/2nd voltages make the orthogonal polarized light that passes, and the polarised light that will change behind the polarization direction sends to described the second film polarizer, when the energy of polarised light reaches maximum, end voltage is supplied with, and polarised light is exported;
Described the second film polarizer, the horizontal polarization light that is used for described electric light potassium dideuterium-hydrogen phosphate crystal is sent is exported, the orthogonal polarized light that described electric light potassium dideuterium-hydrogen phosphate crystal is sent reflects to the first plane mirror, wherein, described the first film polarizer is identical with described the second film polarizer placement direction;
Described the first plane mirror is used for the polarised light that described the second film polarizer sends is reflected to the yag crystal rod;
Described yag crystal rod is used for the polarised light that described the first plane mirror reflection comes is gained;
/ 2nd wave plates, the horizontal direction polarised light that is used for described yag crystal rod is sent becomes the vertical direction polarised light, and the vertical direction polarised light becomes the horizontal direction polarised light, and the polarised light that will change after direction sends to the second plane mirror;
Described the second plane mirror, the polarised light that is used for described 1/2nd wave plates are sent reflects to the 3rd plane mirror;
Described the 3rd plane mirror is used for the polarised light that described the second plane mirror reflection comes is sent to described the first film polarizer.
Preferably, the number of turns of polarised light circulation when the energy that calculates polarised light according to the gain degree of described seed light and described yag crystal rod in advance reaches maximum, after the number of turns of the circulation of the ceiling capacity that reaches polarised light, remove described electric light potassium dideuterium-hydrogen phosphate crystal voltage.
Preferably, also comprise oscilloscope;
Described oscilloscope, the amplification process for the 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 was continuous pumping, pumping current was 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 808nm and the double-colored anti-reflection film of 1064nm.
Preferably, the reflection angle of described the first plane mirror is 30 °～40 °.
Preferably, the reflection angle of described the second plane mirror is 45 °.
Preferably, the reflection angle of described the 3rd plane mirror is 45 °.
Preferably, described mode locking oscillator is to mix 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.
The utility model beneficial effect is as follows:
The utility model provides a kind of pumping annular chamber regenerative amplifier, makes the regeneration seed light can not transmit light path along seed light and returns, and has effectively improved the stability of reproduced light.
Other feature and advantage of the present utility model will be set forth in the following description, and becoming apparent from specification of part perhaps understood by implementing the utility model.The purpose of this utility model and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Description of drawings
Fig. 1 is regenerative amplifier structural representation of the prior art;
Fig. 2 is the pumping annular chamber regenerative amplifier structural representation of the utility model embodiment;
Fig. 3 is the stable seed light oscillogram that not affected by reproduced light of the utility model embodiment;
Fig. 4 is the output reproduced light oscillogram of the utility model embodiment.
Embodiment
Specifically describe preferred embodiment of the present utility model below in conjunction with accompanying drawing, wherein, accompanying drawing consists of the application's part, and is used from explaination principle of the present utility model with embodiment one of the present utility model.For clear and simplification purpose, when it may make theme of the present utility model smudgy, with illustrating in detail of known function and structure in omission device described herein.
Electric light potassium dideuterium-hydrogen phosphate crystal 202 in the utility model embodiment is electric light KD*P crystal, and yag crystal rod 205 is the Nd:YAG rod.
The utility model embodiment provides a kind of pumping annular chamber regenerative amplifier, referring to Fig. 2, comprising:
The first film polarizer 201, the seed light that is used for vertical polarization that mode locking oscillator is sent reflects to electric light KD*P crystal 2 02, and the orthogonal polarized light that also described the 3rd plane mirror 208 is sent sends to described electric light KD*P crystal 2 02;
Described electric light KD*P crystal 2 02, be used for receive for the first time vertical polarization light time that described the first film polarizer 201 sends not making alive directly send to the second film polarizer 203, be sent completely for the first time the polarization direction half-twist that after-applied 1/2nd voltages make the orthogonal polarized light that passes, and the polarised light that will change after direction sends to described the second film polarizer 203, when the energy of polarised light reaches maximum, end voltage is supplied with, and polarised light is exported; Namely control the voltage that applies on electric light KD*P crystal 2 02, make and be equivalent to plain film when this electric light KD*P crystal not being applied voltage, when seed light is passed, the polarization direction does not change, when being applied 1/2nd voltage, this electric light KD*P crystal is equivalent to 1/2nd wave plates, seed light is often passed once, the polarization direction half-twist;
Described the second film polarizer 203 is used for the transmission level polarised light, and the reflection orthogonal polarized light, and wherein, described the first film polarizer 201 is identical with described the second film polarizer 203 placement directions;
The first plane mirror 204, the polarised light that is used for described the second film polarizer 203 is sent reflects to Nd:YAG rod 205;
The logical light face of described Nd:YAG rod 205 is coated with 808nm and the double-colored anti-reflection film of 1064nm, and the polarised light that described the first plane mirror 201 reflections are come gains;
/ 2nd wave plates 206 are used for the horizontal direction polarised light that receives is become the vertical direction polarised light, and the vertical direction polarised light becomes the horizontal direction polarised light, and the polarised light that will change after direction sends to the second plane mirror 207;
Described the second plane mirror 207, the polarised light that is used for described 1/2nd wave plates 206 are sent reflects to the 3rd plane mirror 208;
Described the 3rd plane mirror 208 is used for the polarised light that described the second plane mirror 207 reflections come is sent to described the first film polarizer 201.
Wherein the utility model embodiment 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, after the number of turns of the circulation of the ceiling capacity that reaches polarised light, removes described electric light KD*P crystal 2 02 voltage.
Perhaps, can also by the amplification process of oscilloscope Real Time Observation seed light, when the energy of seed light reaches maximum, remove described electric light KD*P crystal 2 02 voltage.
The pump mode of the Nd:YAG rod 205 in the utility model embodiment is continuous pumping or pulse pump, and when the pump mode of described Nd:YAG rod 205 was continuous pumping, pumping current was 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 used for logical light face and is coated with 808nm and the double-colored anti-reflection film of 1064nm.
The reflection angle of the first plane mirror 201 described in the utility model embodiment is 30 °～40 °;
The reflection angle of described the second plane mirror is 45 °, and the reflection angle of described the 3rd plane mirror is 45 °.
Mode locking oscillator described in the utility model embodiment is to mix rubidium Yttrium Orthovanadate locked mode psec oscillator, i.e. Nd:YVO4 locked mode psec oscillator, and power output is 300mw, wavelength is 1064nm, repetition rate is 91.8MHz, pulse duration 10ps, single pulse energy 3.3nJ;
Wherein the light path of pumping annular chamber regenerative amplifier trend is specifically:
the seed light of vertical polarization reflexes to through the first film polarizer 201 and does not add high-tension electric light KD*P crystal 2 02, incide the second film polarizer 203 after passing electric light KD*P crystal 2 02, and reflexed to the first plane mirror 204 by the second film polarizer 203, then enter Nd:YAG rod 205 through the first plane mirror 204 reflections, by Nd:YAG rod 205 by 1/2nd wave plates 206, 90 ° of the seed light direction rotations of vertical polarization this moment, become the seed light of horizontal direction, pass the first film polarizer 201 after the second plane mirror 207 and the 3rd plane mirror 208, at this moment, electric light KD*P crystal 2 02 has added high pressure, seed light is at the first film polarizer 201, the first plane mirror 204, multiple oscillation in the annular regenerative amplifier that the second plane mirror 207 and the 3rd plane mirror 208 form, and be exaggerated, until the high voltage of electric light KD*P crystal 2 02 is removed, after amplification laser pass the second film polarizer 203 output.
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.At photodiode of the second rear placement of plane mirror 207, seed light is injected in regenerative amplifier, amplification process gradually with seed light in the oscilloscope observation chamber, when seed light is amplified to maximum, remove the voltage on electric light KD*P crystal 2 02, this moment, seed pulse just can be poured out in the chamber.Carefully regulate the second plane mirror and the 207 and the 3rd plane mirror 208, make seed light and regeneration pump light reach pattern matching, thereby export more high-energy.
Shown in accompanying drawing 3 is when in this embodiment, regenerative amplifier is worked, the light stable oscillogram that not affected by reproduced light.
Shown in accompanying drawing 4 is output reproduced light oscillogram in this embodiment.At repetition rate 100Hz, export the amplifying laser of maximum single pulse energy 2.4mJ during pumping current 21A.
Fig. 3 and Fig. 4 can illustrate fully that pumping annular chamber regenerative amplifier that the utility model embodiment provides returns to the problem of seeds chamber when having eliminated seed light output, thereby have improved the stability of seed light.
According to other embodiment of the present utility model, wherein the first polarizer 201, the second polarizer 203 are the polarization selector, and those skilled in the art can be according to the polarization selector of other type of content choice of the present utility model.
In sum, the utility model embodiment provides a kind of pumping annular chamber regenerative amplifier, makes the regeneration seed light can not transmit light path along seed light and returns, and has effectively improved the stability of reproduced light.
The above; it is only the better embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement are within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (9)
1. a pumping annular chamber regenerative amplifier, is characterized in that, comprising:
The first film polarizer, the seed light that is used for vertical polarization that mode locking oscillator is sent reflects to the electric light potassium dideuterium-hydrogen phosphate crystal, and the orthogonal polarized light that also described the 3rd plane mirror is sent sends to described electric light potassium dideuterium-hydrogen phosphate crystal;
Described electric light potassium dideuterium-hydrogen phosphate crystal, being used for when receiving for the first time the seed light of the vertical polarization that described the first film polarizer sends not, making alive directly sends to the second film polarizer, be sent completely for the first time the polarization direction half-twist that after-applied 1/2nd voltages make the orthogonal polarized light that passes, and the polarised light that will change behind the polarization direction sends to described the second film polarizer, when the energy of polarised light reaches maximum, end voltage is supplied with, and polarised light is exported;
Described the second film polarizer, the horizontal polarization light that is used for described electric light potassium dideuterium-hydrogen phosphate crystal is sent is exported, the orthogonal polarized light that described electric light potassium dideuterium-hydrogen phosphate crystal is sent reflects to the first plane mirror, wherein, described the first film polarizer is identical with described the second film polarizer placement direction;
Described the first plane mirror is used for the polarised light that described the second film polarizer sends is reflected to the yag crystal rod;
Described yag crystal rod is used for the polarised light that described the first plane mirror reflection comes is gained;
/ 2nd wave plates, the horizontal direction polarised light that is used for described yag crystal rod is sent becomes the vertical direction polarised light, and the vertical direction polarised light becomes the horizontal direction polarised light, and the polarised light that will change after direction sends to the second plane mirror;
Described the second plane mirror, the polarised light that is used for described 1/2nd wave plates are sent reflects to the 3rd plane mirror;
Described the 3rd plane mirror is used for the polarised light that described the second plane mirror reflection comes is sent to described the first film polarizer.
2. pumping annular chamber regenerative amplifier according to claim 1, is characterized in that, also comprises oscilloscope;
Described oscilloscope, the amplification process for the Real Time Observation seed light when the energy of polarised light reaches maximum, removes described electric light potassium dideuterium-hydrogen phosphate crystal voltage.
3. pumping annular chamber regenerative amplifier according to claim 1 and 2, 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 was continuous pumping, pumping current was 20A～30A.
4. pumping annular chamber regenerative amplifier according to claim 1 and 2, is characterized in that,
The diameter of described yag crystal rod is Ф 3mm～Ф 4mm, and length is 65mm～75mm.
5. pumping annular chamber regenerative amplifier according to claim 1 and 2, is characterized in that, the logical light face of described yag crystal rod is coated with 808nm and the double-colored anti-reflection film of 1064nm.
6. pumping annular chamber regenerative amplifier according to claim 1 and 2, is characterized in that, the reflection angle of described the first plane mirror is 30 °～40 °.
7. pumping annular chamber regenerative amplifier according to claim 1 and 2, is characterized in that, the reflection angle of described the second plane mirror is 45 °.
8. pumping annular chamber regenerative amplifier according to claim 1 and 2, is characterized in that, the reflection angle of described the 3rd plane mirror is 45 °.
9. pumping annular chamber regenerative amplifier according to claim 1 and 2, is characterized in that,
Described mode locking oscillator is to mix 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320240225 CN203277956U (en) | 2013-05-07 | 2013-05-07 | Pumped annular chamber regenerative amplifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320240225 CN203277956U (en) | 2013-05-07 | 2013-05-07 | Pumped annular chamber regenerative amplifier |
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| CN203277956U true CN203277956U (en) | 2013-11-06 |
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| CN 201320240225 Withdrawn - After Issue CN203277956U (en) | 2013-05-07 | 2013-05-07 | Pumped annular chamber regenerative amplifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296571A (en) * | 2013-05-07 | 2013-09-11 | 中国电子科技集团公司第十一研究所 | Pumping ring cavity regenerative amplifier |
-
2013
- 2013-05-07 CN CN 201320240225 patent/CN203277956U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296571A (en) * | 2013-05-07 | 2013-09-11 | 中国电子科技集团公司第十一研究所 | Pumping ring cavity regenerative amplifier |
| CN103296571B (en) * | 2013-05-07 | 2015-09-16 | 中国电子科技集团公司第十一研究所 | Pumping annular chamber regenerative amplifier |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20150916 |
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| RGAV | Abandon patent right to avoid regrant |