CN206498082U - One kind is based on lath gating angle multi-pass amplifier super-fluorescence light source - Google Patents
One kind is based on lath gating angle multi-pass amplifier super-fluorescence light source Download PDFInfo
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- CN206498082U CN206498082U CN201621477067.5U CN201621477067U CN206498082U CN 206498082 U CN206498082 U CN 206498082U CN 201621477067 U CN201621477067 U CN 201621477067U CN 206498082 U CN206498082 U CN 206498082U
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- light source
- lath
- imaging len
- reflective mirror
- super
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Abstract
The utility model provides one kind and is based on lath gating angle multi-pass amplifier super-fluorescence light source, and the program includes slab laser gain media, imaging len, plane high reflective mirror and space filtering rectangular apertures diaphragm；The laser beam that slab laser gain media is sent is projected after imaging len and space filtering rectangular apertures diaphragm after the reflection of plane high reflective mirror after entering to be emitted back towards slab laser gain media.Program light channel structure is simple, can either obtain the gain of superelevation（Small-signal gain is up to 108Magnitude even more high）, while laser starting of oscillation caused by feeding back can be avoided, high power, high efficiency, high light beam quality, the output of different wave length superfluorescence can be achieved, the application field of super-fluorescence light source is expanded significantly.
Description
Technical field
It is especially a kind of super glimmering based on lath gating angle multi-pass amplifier the utility model relates to laser technology field
Radiant.
Background technology
Superfluorescence is a kind of transition state between laser and fluorescence, with spectrum it is continuous, without relaxation oscillation, without mould
The advantages of output is stable is jumped, therefore before the various fields such as optical chromatography, signal analysis, spectral detection have a wide range of applications
Scape.Currently, most study is high-gain fiber superfluorescent source, its power（Watt level level）With extremely inefficient, only continuous work
Make, be mainly used in suppressing optical fiber SBS nonlinear effects, high-power output can be achieved by multistage amplification.Pulsed operation, different ripples
Long super-fluorescence light source is without research report, and high-peak power, different wave length pulse super-fluorescence light source will expand superfluorescence light significantly
The application field in source.
Therefore, currently in the urgent need to one kind can realize that high power, high efficiency, the output of different wave length pulse superfluorescence are solved
Scheme.
Utility model content
The purpose of this utility model, aiming at the deficiency present in prior art, and provides a kind of based on lath angle
Multi-pass amplifier super-fluorescence light source is gated, program light channel structure is simple, can either obtain the gain of superelevation（Small-signal gain is reachable
108Magnitude even more high）, while laser starting of oscillation caused by feeding back can be avoided, high power, high efficiency, high beam matter can be achieved
Amount, the output of different wave length superfluorescence, expand the application field of super-fluorescence light source significantly.
This programme is achieved by the following technical measures：
One kind is based on lath gating angle multi-pass amplifier super-fluorescence light source, includes slab laser gain media, imaging thoroughly
Mirror, plane high reflective mirror and space filtering rectangular apertures diaphragm；The laser beam that slab laser gain media is sent passes through imaging len
With the injection after entering to be emitted back towards slab laser gain media after the reflection of plane high reflective mirror after space filtering rectangular apertures diaphragm.
It is used as the preferred of this programme：Lath gain media is trapezoidal or parallelogram lath structure, can pass through end
Face, big face or side carry out pumping, and pumping source used is continuous or quasi-continuous operation mode
It is used as the preferred of this programme：The outgoing route of laser beam can be by adding multiple imaging lens and plane high reflective mirror
Exported from different perspectives after carrying out refraction of light path to output laser；The focal length of each imaging len is equal；Each imaging len peace
The relative position and distance of face high reflective mirror are put according to 4F light paths.
It is used as the preferred of this programme：Imaging len is obliquely installed relative to light path.
It is used as the preferred of this programme：Space filtering rectangular apertures diaphragm is placed in the 4F far-field positions of imaging len, for selecting
The spontaneous radiation fluorescence for selecting small divergence angle passes through, and realizes the control to super-fluorescence light source beam quality.
It is used as the preferred of this programme：Imaging len can replace with concave surface high reflective mirror；The reflecting surface of concave surface high reflective mirror is to incline
Oblique reflection face, the light path of reflection carries inclination angle.
The beneficial effect of this programme can be learnt according to the narration to such scheme, due to using imaging len in this scenario
Or concave surface high reflective mirror and plane high reflective mirror are used to select the spontaneous radiation fluorescence that pumping loads lower strip gain media by angle
It is logical to carry out multi-pass amplifier, realize that high efficiency superfluorescence is exported；Space filtering rectangular apertures diaphragm is placed in the 4F far fields of imaging len
Position, for selecting the fluorescence of small divergence angle to pass through, realizes the control to super-fluorescence light source beam quality.
As can be seen here, the utility model compared with prior art, with substantive distinguishing features and progress, its beneficial effect implemented
Fruit is also obvious.
Brief description of the drawings
Fig. 1 is 1 jiao 2 logical structural representation of the utility model using imaging len.
Fig. 2 is 2 jiao 4 logical structural representation of the utility model using imaging len.
Fig. 3 is 2 jiao 4 logical structural representation of the utility model using concave surface high reflective mirror.
In figure, 1 is slab laser gain media, and 2 be imaging len, and 3 be plane high reflective mirror, and 4 be that space filtering rectangle is small
Hole diaphragm, 5 be outgoing laser beam, and 6 be concave surface high reflective mirror.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically is chatted
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
As illustrated, this programme includes slab laser gain media, imaging len, plane high reflective mirror and space filtering square
Shape aperture；The laser beam that slab laser gain media is sent is passed through after imaging len and space filtering rectangular apertures diaphragm
Projected after crossing the reflection of plane high reflective mirror after entering to be emitted back towards slab laser gain media.
Lath gain media is trapezoidal or parallelogram lath structure, can be entered by end face, big face or side
Row pumping, pumping source used is continuous or quasi-continuous operation mode
The outgoing route of laser beam can carry out light by adding multiple imaging lens and plane high reflective mirror to output laser
Exported from different perspectives after the refraction of road；The focal length of each imaging len is equal；The relative position of each imaging len and plane high reflective mirror
Put and distance is put according to 4F light paths.
Imaging len is obliquely installed relative to light path.
Space filtering rectangular apertures diaphragm is placed in the 4F far-field positions of imaging len, the spontaneous spoke for selecting small divergence angle
Penetrate fluorescence to pass through, realize the control to super-fluorescence light source beam quality.
Imaging len can replace with concave surface high reflective mirror；The reflecting surface of concave surface high reflective mirror is sloping reflector, the light of reflection
Road carries inclination angle.
Embodiment is：
Slab laser gain media is singly to mix Nd:YAG crystal bonding laths, the mm of lath length 150（z）, wide 30 mm（y）、
2 mm of thickness（x）, wherein, the mm of lath doped region length 120, the at.% of concentration 0.1, two ends are respectively bonded the white YAG of long 15 mm, lath
45 ° of end face corner cut, the processing of side feather plucking；Described 4F imaging lens or concave surface high reflective mirror focal length is 500 mm；Described sky
Between filtering rectangular apertures aperture stop size be 0.05 mm（y） × 0.8 mm（x）.
Using above-mentioned a kind of based on lath gating angle multi-pass amplifier super-fluorescence light source light channel structure, in 100 Hz, 500 μ
S quasi-cw pumpings, it is not added with space filtering rectangular apertures diaphragm, the W outputs of highest average power 328, light light is obtained during 200 A
Efficiency about 28%；Impulse waveform is " h " type step rectangular laser pulse, first the μ s of step pulsewidth 20, peak power about 15
KW, second the μ s of step pulsewidth 400, the kW of peak power about 7.5." h " type step rectangular laser pulse adds in scientific research, industry
There is important application background in the fields such as work, military radar.
The utility model is not limited to foregoing embodiment.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
Close.
Claims (6)
1. one kind is based on lath gating angle multi-pass amplifier super-fluorescence light source, it is characterized in that：Include slab laser gain media,
Imaging len, plane high reflective mirror and space filtering rectangular apertures diaphragm；The laser beam warp that the slab laser gain media is sent
Cross after imaging len and space filtering rectangular apertures diaphragm and entering to be emitted back towards slab laser gain Jie after the reflection of plane high reflective mirror
Projected after matter.
2. it is according to claim 1 a kind of based on lath gating angle multi-pass amplifier super-fluorescence light source, it is characterized in that：It is described
Slab laser gain media is trapezoidal or parallelogram lath structure, can carry out pump by end face, big face or side
Pu, pumping source used is continuous or quasi-continuous operation mode.
3. it is according to claim 1 a kind of based on lath gating angle multi-pass amplifier super-fluorescence light source, it is characterized in that：It is described
The outgoing route of laser beam can be carried out after refraction of light path by adding multiple imaging lens and plane high reflective mirror to output laser
Export from different perspectives；The focal length of each imaging len is equal；The relative position of each imaging len and plane high reflective mirror
Put and distance is put according to 4F light paths.
4. one kind according to claim 1 or 3 is based on lath gating angle multi-pass amplifier super-fluorescence light source, it is characterized in that：
The imaging len is obliquely installed relative to light path.
5. it is according to claim 1 a kind of based on lath gating angle multi-pass amplifier super-fluorescence light source, it is characterized in that：It is described
Space filtering rectangular apertures diaphragm is placed in the 4F far-field positions of imaging len, for selecting the spontaneous radiation fluorescence of small divergence angle to lead to
Cross, realize the control to super-fluorescence light source beam quality.
6. one kind according to claim 1 or 3 is based on lath gating angle multi-pass amplifier super-fluorescence light source, it is characterized in that：
The imaging len can replace with concave surface high reflective mirror；The reflecting surface of the concave surface high reflective mirror is sloping reflector, the light of reflection
Road carries inclination angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621477067.5U CN206498082U (en) | 2016-12-30 | 2016-12-30 | One kind is based on lath gating angle multi-pass amplifier super-fluorescence light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621477067.5U CN206498082U (en) | 2016-12-30 | 2016-12-30 | One kind is based on lath gating angle multi-pass amplifier super-fluorescence light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206498082U true CN206498082U (en) | 2017-09-15 |
Family
ID=59801836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621477067.5U Withdrawn - After Issue CN206498082U (en) | 2016-12-30 | 2016-12-30 | One kind is based on lath gating angle multi-pass amplifier super-fluorescence light source |
Country Status (1)
| Country | Link |
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| CN (1) | CN206498082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785869A (en) * | 2016-12-30 | 2017-05-31 | 中国工程物理研究院应用电子学研究所 | One kind is based on lath gating angle multi-pass amplifier super-fluorescence light source |
-
2016
- 2016-12-30 CN CN201621477067.5U patent/CN206498082U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785869A (en) * | 2016-12-30 | 2017-05-31 | 中国工程物理研究院应用电子学研究所 | One kind is based on lath gating angle multi-pass amplifier super-fluorescence light source |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170915 Effective date of abandoning: 20230331 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170915 Effective date of abandoning: 20230331 |