CN205355525U - Intersection stimulated scattering reinforcing means - Google Patents
Intersection stimulated scattering reinforcing means Download PDFInfo
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- CN205355525U CN205355525U CN201520907455.1U CN201520907455U CN205355525U CN 205355525 U CN205355525 U CN 205355525U CN 201520907455 U CN201520907455 U CN 201520907455U CN 205355525 U CN205355525 U CN 205355525U
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- 230000003014 reinforcing effect Effects 0.000 title 1
- 230000005284 excitation Effects 0.000 claims abstract description 64
- 238000007493 shaping process Methods 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract 3
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000001069 Raman spectroscopy Methods 0.000 description 44
- 230000011514 reflex Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
一种交叉受激散射增强装置，包括：激励光光源(1)，整形透镜(2)，受激散射介质(5)，第一全反射镜(6)，信号光光源(8)，第二全反射镜(7)和/或二向色镜(3)：激励光光源(1)，整形透镜(2)，受激布里渊散射介质(5)和第一全反射镜(6)沿光路顺序依次设置，信号光光源(8)发出的信号光进入受激散射介质(5)，在受激散射介质(5)中与激励光以非零角度相交，从受激布里渊散射介质(5)透射的激励光被第一全反射镜(6)反射到第二全反射镜(7)和/或二向色镜(3)上，然后被第二全反射镜(7)和/或二向色镜(3)以与信号光同光路同方向或反方向的形式反射到受激散射介质(5)内。
A cross stimulated scattering enhancement device, comprising: an excitation light source (1), a shaping lens (2), a stimulated scattering medium (5), a first total reflection mirror (6), a signal light source (8), a second Total reflection mirror (7) and/or dichroic mirror (3): excitation light source (1), shaping lens (2), stimulated Brillouin scattering medium (5) and first total reflection mirror (6) The optical paths are arranged sequentially, the signal light emitted by the signal light source (8) enters the stimulated scattering medium (5), intersects the excitation light at a non-zero angle in the stimulated scattering medium (5), and passes through the stimulated Brillouin scattering medium (5) the excitation light of transmission is reflected on the second total reflection mirror (7) and/or dichroic mirror (3) by the first total reflection mirror (6), then by the second total reflection mirror (7) and/or Or the dichroic mirror (3) is reflected into the stimulated scattering medium (5) in the same direction as the signal light or in the opposite direction of the optical path.
Description
Technical field
This utility model relates to stimulated scattering, particularly relates to a kind of device improving excited Brillouin or stimulated Raman scattering light intensity, belongs to photoelectron technical field.
Background technology
Excited Brillouin and stimulated Raman scattering belong to very important scattering phenomenon in the middle of nonlinear scattering, in prior art a lot of about the research of excited Brillouin and stimulated Raman scattering, wherein it is required for could realizing generation and the observation of excited Brillouin and stimulated Raman scattering by specific device and light path design, excited Brillouin and the stimulated Raman scattering device of prior art are generally divided into two kinds in the design of light path, one is flashlight and excitation light same light path, another is that excitation light exists intersecting angle with pump light, excited Brillouin and stimulated Raman scattering for both forms, for the first situation, if in liquid or gas medium carry out excited Brillouin and stimulated Raman scattering, then need to place specially the container of excited Brillouin and stimulated Raman scattering medium, light path design is carried out in outside, flashlight and excitation light same light path in the middle of medium are propagated, or simply squeeze into excitation light in media as well, utilize spontaneous Brillouin scattering as flashlight, and for fiber medium, owing to light transmission in optical fiber is all strictly be limited in inside of optical fibre, so light path must be same light path, excited Brillouin and stimulated Raman scattering for same light path, cell therefor is generally the rectangular or square when of transparent cylindrical shape or rule, have only at the incident laser producing flashlight of same light path order and the laser for amplifying when carrying out excited Brillouin and stimulated Raman scattering experiment, flashlight and excitation light are existed to excited Brillouin and the stimulated Raman scattering of angle, then cell therefor needs specialization to design, the such as luminous reflectance loss in order to minimize, needing the intersecting angle keeping flashlight with encouraging light is 90 degree, but, no matter for which kind of situation, excitation light is all once by excited Brillouin and stimulated Raman scattering medium, actually, when excitation light is once by after medium, the part that its energy is transformed into flashlight is simply seldom a part of, major part excitation light just slatterns after passage, such result is just so that the flashlight of excited Brillouin can not be greatly enhanced, and also cause the significant wastage of the energy.
This utility model is aiming at what the problems referred to above put forward, little to solve excited Brillouin and stimulated Raman scattering light intensity in prior art, the problem that excitation light waste is serious.
Utility model content
This utility model provides a kind of stimulated scattering intensifier that intersects, this device includes: excitation radiant (1), shaping lens (2), stimulated scattering medium (5), first completely reflecting mirror (6), flashlight light source (8), second completely reflecting mirror (7) and/or dichroic mirror (3), it is characterized in that: their relation that arranges is: excitation radiant (1), shaping lens (2), SBS medi um (5) and the first completely reflecting mirror (6) set gradually along light path order, the flashlight that flashlight light source (8) sends enters stimulated scattering medium (5), stimulated scattering medium (5) intersects with non-zero angle with excitation light, reflexed to the second completely reflecting mirror (7) and/or dichroic mirror (3) from the excitation light of SBS medi um (5) transmission by the first completely reflecting mirror (6), then reflexed in stimulated scattering medium (5) with equidirectional with flashlight same light path or reciprocal form by the second completely reflecting mirror (7) and/or dichroic mirror (3).
According to an embodiment of the present utility model, described stimulated scattering is stimulated Raman scattering.
According to an embodiment of the present utility model, described stimulated scattering is stimulated Brillouin scattering.
According to an embodiment of the present utility model, providing a kind of method utilizing above-mentioned enhancing stimulated scattering, remaining excitation light is reflexed in stimulated scattering medium (5) with equidirectional with flashlight same light path or reciprocal form by the first completely reflecting mirror (6) with the second completely reflecting mirror (7) and/or dichroic mirror (3).
According to an embodiment of the present utility model, in described method stimulated scattering be stimulated Raman scattering.
According to an embodiment of the present utility model, the stimulated scattering in described method is stimulated Brillouin scattering.
According to an embodiment of the present utility model, in described method, remaining excitation light is reflexed in stimulated scattering medium (5) with equidirectional with flashlight same light path or reciprocal form by the first completely reflecting mirror (6) with the second completely reflecting mirror (7) and dichroic mirror (3).
According to an embodiment of the present utility model, in described method, the first completely reflecting mirror (6) and the second completely reflecting mirror (7) by remaining excitation light to reflex in stimulated scattering medium (5) with the reciprocal form of flashlight same light path.
According to an embodiment of the present utility model, in described method, the first completely reflecting mirror (6) and dichroic mirror (3) by remaining excitation light to reflex in stimulated scattering medium (5) with the reciprocal form of flashlight same light path.
According to an embodiment of the present utility model, in described method, also include using detector and/or semi-transparent semi-reflecting lens to detect stimulated scattering light.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of the stimulated Brillouin scattering intensifier of embodiment one of the present utility model；
Accompanying drawing 2 is the schematic diagram of the stimulated Raman scattering intensifier of embodiment two of the present utility model；
Accompanying drawing 3 is the schematic diagram of the stimulated Brillouin scattering intensifier of embodiment three of the present utility model；
Accompanying drawing 4 is the schematic diagram of the stimulated Raman scattering intensifier of embodiment four of the present utility model.
In above-mentioned accompanying drawing, 1 represents excitation radiant, 2 shaping lens, and 3 represent dichroic mirror, and 5 represent excited Brillouin and stimulated Raman scattering medium, and 6-7 represents completely reflecting mirror, and 9 represent semi-transparent semi-reflecting lens, and 10 represent detector, and 8 represent flashlight light source.
Detailed description of the invention
Before carrying out the explaining orally in detail of this utility model specific embodiment, the generation direction of we first clear and definite stimulated Brillouin scattering once and stimulated Raman scattering, stimulated Brillouin scattering belongs to back scattering, and stimulated Raman scattering is then forward scattering.
When describing them and direction occurring, of the present utility model embodiment one will be described in detail below on the basis in conjunction with accompanying drawing 1, in this embodiment, wherein flashlight intersects with non-zero angle in SBS medi um 5 inside with excitation light, this device includes: excitation radiant 1, shaping lens 2, dichroic mirror 3, SBS medi um 5, completely reflecting mirror 6-7, detector 10, flashlight light source 8, partial mirror 9, their relation that arranges is: excitation radiant 1, shaping lens 2, SBS medi um 5 and completely reflecting mirror 6 set gradually along light path order, the flashlight that flashlight light source 8 sends enters SBS medi um 5 sequentially through semi-transparent semi-reflecting lens 9 and dichroic mirror 3, SBS medi um intersects with non-zero angle with excitation light, it is totally reflected mirror 6 from the excitation light of SBS medi um 5 transmission and reflexes to completely reflecting mirror 7, then it is totally reflected mirror 7 and reflexes on dichroic mirror 3, dichroic mirror 3 for flashlight transmission for excitation luminous reflectance, the excitation light incided on dichroic mirror 3 is reflexed in SBS medi um 5 by dichroic mirror 3 with the form with flashlight same light path, and backward stimulated Brillouin scattering light incides on semi-transparent semi-reflecting lens 9 through dichroic mirror 3, reflexed on detector 10 by semi-transparent semi-reflecting lens 9.
Below in conjunction with accompanying drawing 2 embodiment two of the present utility model, in this embodiment, flashlight intersects with non-zero angle in stimulated Raman scattering medium 5 with excitation light, this device includes: excitation radiant 1, shaping lens 2, dichroic mirror 3, stimulated Raman scattering medium 5, completely reflecting mirror 6-7, detector 10, flashlight light source 8, their relation that arranges is: excitation radiant 1, shaping lens 2, stimulated Raman scattering medium 5 and completely reflecting mirror 6 set gradually along light path order, the flashlight that flashlight light source 8 sends enters stimulated Raman scattering medium 5 sequentially through dichroic mirror 3, stimulated Raman scattering medium intersects with non-zero angle with excitation light, it is totally reflected mirror 6 from the excitation light of stimulated Raman scattering medium 5 transmission and reflexes to completely reflecting mirror 7, then it is totally reflected mirror 7 and reflexes on dichroic mirror 3, dichroic mirror 3 for flashlight transmission for excitation luminous reflectance, the excitation light incided on dichroic mirror 3 is reflexed in stimulated Raman scattering medium 5 by dichroic mirror 3 with the form with flashlight same light path, and the stimulated Raman scattering light of forward direction is being directly incident on detector 10 after stimulated Raman scattering medium.
Below in conjunction with accompanying drawing 3, embodiment three of the present utility model is described, in this embodiment, wherein flashlight intersects with non-zero angle in SBS medi um 5 inside with excitation light, and this device includes: excitation radiant 1, shaping lens 2, SBS medi um 5, completely reflecting mirror 6-7, detector 10, flashlight light source 8, partial mirror 9, their relation that arranges is；Excitation radiant 1, shaping lens 2, SBS medi um 5 and completely reflecting mirror 6 set gradually along light path order, the flashlight that flashlight light source 8 sends enters SBS medi um 5 sequentially through semi-transparent semi-reflecting lens 9, SBS medi um intersects with non-zero angle with excitation light, it is totally reflected mirror 6 from the excitation light of SBS medi um 5 transmission and reflexes to completely reflecting mirror 7, then be totally reflected mirror 7 with flashlight same light path but the contrary form in the direction of propagation reflexes in SBS medi um 5, and backward stimulated Brillouin scattering light incides on semi-transparent semi-reflecting lens 9, reflexed on detector 10 by semi-transparent semi-reflecting lens 9.
Below in conjunction with accompanying drawing 4, the 4th embodiment of the present utility model is described, in this embodiment, flashlight intersects with non-zero angle in stimulated Raman scattering medium 5 with excitation light, this device includes: excitation radiant 1, shaping lens 2, dichroic mirror 3, stimulated Raman scattering medium 5, completely reflecting mirror 6, detector 10, flashlight light source 8, their relation that arranges is: excitation radiant 1, shaping lens 2, stimulated Raman scattering medium 5 and completely reflecting mirror 6 set gradually along light path order, the flashlight that flashlight light source 8 sends is directly entered stimulated Raman scattering medium 5, stimulated Raman scattering medium intersects with non-zero angle with excitation light, it is totally reflected mirror 6 from the excitation light of stimulated Raman scattering medium 5 transmission and reflexes to dichroic mirror 3, but then reflexed in stimulated Raman scattering medium 5 by dichroic mirror 3 with the form contrary with the flashlight same light path direction of propagation, and the stimulated Raman scattering light of forward direction is being directly incident on detector 10 after dichroic mirror, wherein dichroic mirror 3 for flashlight transmission for excitation luminous reflectance.
Operation principle and process below for above-described embodiment are described in detail, owing to the generation of excited Brillouin and stimulated Raman scattering belongs to technology known in the field with detection, so being no longer described in detail for this part, in the light path focusing on excitation light described below, for embodiment one, when encouraging light to intersect first in media as well with flashlight, flashlight is amplified by excitation light, remaining excitation light then incides on dichroic mirror 3 via completely reflecting mirror 6 and 7, owing to dichroic mirror 3 just reflects for excitation, and it is that the form with flashlight same light path reflects, here it is make remaining excitation light incident excited Brillouin and stimulated Raman scattering medium again coaxially interact with flashlight, this mode not only makes remaining excitation light again be fully used, and again with time change the mode of anterior cruciate, but become coaxial mode, obviously, it is bigger that coaxial mode intersects area, action time is longer, so that excitation light obtains utilizing fully very much.
For embodiment two, its principle is similar with embodiment one, differs only in the stimulated Raman scattering that herein happens is that forward direction, so detector 10 can directly receive the stimulated Raman scattering of forward direction.
For embodiment three, but remaining excitation light is incided in stimulated scattering medium by reflecting mirror 6 and reflecting mirror 7 with the form contrary with the flashlight same light path direction of propagation, this mode eliminates dichroic mirror, in structure simpler, simultaneously because be backward Brillouin scattering, so relative to embodiment one, the reception position of detector does not change.Similar with embodiment one, make remaining excitation light incident excited Brillouin and stimulated Raman scattering medium again coaxially interact with flashlight, this mode not only makes remaining excitation light again be fully used, and again with time change the mode of anterior cruciate, but becoming coaxial mode, it is obvious that it is bigger that coaxial mode intersects area, action time is longer, so that excitation light obtains utilizing fully very much.
For embodiment four, its principle is substantially coincident with embodiment three, differing only in this embodiment is stimulated Raman scattering, so using dichroic mirror 3 to instead of the completely reflecting mirror 7 in embodiment three, so that the stimulated Raman scattering flashlight of propagated forward incides on detector 10, it is obvious that it is bigger that this coaxial mode intersects area, action time is longer, so that excitation light obtains utilizing fully very much.
Four above-mentioned embodiments describe stimulated scattering intensifier of the present utility model with different scatterings and structural form respectively; it is no matter which kind of form all makes excitation light obtain making full use of again with flashlight in the way of coaxially intersecting; above-mentioned description carries out on basis in conjunction with specific embodiments; it should be appreciated that; above-described embodiment is not the restriction for this utility model protection domain, and the predictable deformation of any those skilled in the art is in protection domain of the present utility model.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907455.1U CN205355525U (en) | 2015-11-13 | 2015-11-13 | Intersection stimulated scattering reinforcing means |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520907455.1U CN205355525U (en) | 2015-11-13 | 2015-11-13 | Intersection stimulated scattering reinforcing means |
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| CN205355525U true CN205355525U (en) | 2016-06-29 |
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| CN201520907455.1U Expired - Fee Related CN205355525U (en) | 2015-11-13 | 2015-11-13 | Intersection stimulated scattering reinforcing means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406348A (en) * | 2015-12-10 | 2016-03-16 | 华北电力大学（保定） | Universal stimulated Brillouin scattering enhancement device |
| CN105529612A (en) * | 2015-11-13 | 2016-04-27 | 华北电力大学（保定） | Cross stimulated scattering enhancement device and method |
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2015
- 2015-11-13 CN CN201520907455.1U patent/CN205355525U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529612A (en) * | 2015-11-13 | 2016-04-27 | 华北电力大学（保定） | Cross stimulated scattering enhancement device and method |
| CN105529612B (en) * | 2015-11-13 | 2020-09-04 | 华北电力大学（保定） | Cross stimulated scattering enhancement device and method |
| CN105406348A (en) * | 2015-12-10 | 2016-03-16 | 华北电力大学（保定） | Universal stimulated Brillouin scattering enhancement device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20181113 |