CN105406348A - Universal stimulated Brillouin scattering enhancement device - Google Patents
Universal stimulated Brillouin scattering enhancement device Download PDFInfo
- Publication number
- CN105406348A CN105406348A CN201510937303.0A CN201510937303A CN105406348A CN 105406348 A CN105406348 A CN 105406348A CN 201510937303 A CN201510937303 A CN 201510937303A CN 105406348 A CN105406348 A CN 105406348A
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- CN
- China
- Prior art keywords
- flashlight
- dichroscope
- brillouin scattering
- stimulated brillouin
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/3501—Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/3501—Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals
- G02F1/3503—Structural association of optical elements, e.g. lenses, with the non-linear optical device
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention provides a brand new universal stimulated Brillouin scattering enhancement device. The device is applicable to pulse laser and continuous laser, and the device adopts a total-reflection mirror and a dichroscope to irradiate remaining excitation light into a stimulated Brillouin scattering medium on the same light path as signal light, so as to fully use the remaining excitation light again.
Description
Technical field
The present invention relates to stimulated Brillouin scattering, particularly relate to and a kind ofly improve the strong device of stimulated Brillouin scattering light, belong to photoelectron technical field.
Background technology
Stimulated Brillouin scattering belongs to a kind of very important scattering phenomenon in the middle of nonlinear scattering, a lot of about the research of stimulated Brillouin scattering in prior art, wherein all need generation and the observation that could realize stimulated Brillouin scattering by specific device and light path design, the stimulated Brillouin scattering device of prior art is generally divided into two kinds in the design of light path, one is flashlight and exciting light same light path, another is that exciting light and pump light exist intersecting angle, for the stimulated Brillouin scattering of these two kinds of forms, for the first situation, if carry out stimulated Brillouin scattering in liquid or gas medium, then need the container of special accommodating SBS medi um, light path design is carried out in outside, flashlight and exciting light same light path in the middle of medium is propagated, or just squeeze into exciting light in media as well, utilize spontaneous Brillouin scattering as flashlight, and for fiber medium, because the transmission of light in optical fiber is all strictly be limited in inside of optical fibre, so light path must be same light path, for the stimulated Brillouin scattering of same light path, cell therefor is generally rectangle or the square of transparent cylindrical shape or rule, only need at the same light path order incident generation laser of flashlight and the laser for amplifying when carrying out stimulated Brillouin scattering experiment, flashlight and exciting light are existed to the stimulated Brillouin scattering of angle, then cell therefor needs specialization to design, such as in order to minimized smooth reflection loss, the intersecting angle of inhibit signal light and exciting light is needed to be 90 degree, but, no matter for which kind of situation, exciting light is all once pass through SBS medi um, in fact, when exciting light is once by after medium, the part that its energy is transformed into flashlight is just seldom a part of, major part exciting light has just slatterned after passage, such result is exactly that the flashlight of excited Brillouin can not be greatly enhanced, and cause the significant wastage of the energy.
The present invention puts forward for the problems referred to above, and little by force to solve stimulated Brillouin scattering light in prior art, exciting light wastes serious problem.
Summary of the invention
The invention provides a kind of universal stimulated Brillouin scattering intensifier completely newly, this device paired pulses laser and continuous laser all applicable, it adopts completely reflecting mirror and dichroscope by remaining exciting light again to incide in SBS medi um with the form of flashlight same light path, thus again takes full advantage of remaining exciting light.
According to one embodiment of the invention, provide a kind of universal stimulated Brillouin scattering intensifier, this device comprises: exciting light light source (1), shaping lens (2), dichroscope (3), SBS medi um (5), first completely reflecting mirror (6), second completely reflecting mirror (7), flashlight light source (8), it is characterized in that: their pass that arranges is: exciting light light source (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 SBS medi um (5) through dichroscope (3), crossing with non-zero angle with exciting light in SBS medi um (5), reflexed to completely reflecting mirror (7) from the exciting light of SBS medi um (5) transmission by the first completely reflecting mirror (6), then being totally reflected mirror (7) reflexes on dichroscope (3), dichroscope (3) reflects for exciting light for flashlight transmission, incide exciting light on dichroscope (3) by dichroscope (3) to reflex in SBS medi um (5) with the form of flashlight same light path.
According to another embodiment, also comprise the semi-transparent semi-reflecting lens (9) be positioned between flashlight light source (8) and dichroscope (3), backward scattered stimulated Brillouin scattering flashlight reflexes on detector (10) via semi-transparent semi-reflecting lens (9).
According to one embodiment of the invention, this device for pulse laser and continuous laser all applicable.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of universal stimulated Brillouin scattering intensifier of the present invention.
In above-mentioned accompanying drawing, 1 represents exciting light light source, and 2 represent shaping lens, and 3 represent dichroscope, and 5 represent SBS medi um, 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.
Embodiment
Below by by reference to the accompanying drawings 1 basis on describe embodiments of the invention in detail, in this embodiment, wherein flashlight is crossing with non-zero angle in SBS medi um 5 inside with exciting light, this device comprises: exciting light light source 1, shaping lens 2, dichroscope 3, SBS medi um 5, completely reflecting mirror 6-7, detector 10, flashlight light source 8, semi-transparent reflection mirror 9, their pass that arranges is: exciting light light source 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 dichroscope 3, crossing with non-zero angle with exciting light in SBS medi um, being totally reflected mirror 6 from the exciting light of SBS medi um 5 transmission reflexes to completely reflecting mirror 7, then being totally reflected mirror 7 reflexes on dichroscope 3, dichroscope 3 reflects for exciting light for flashlight transmission, incide exciting light on dichroscope 3 by dichroscope 3 to reflex in SBS medi um 5 with the form of flashlight same light path, and backward stimulated Brillouin scattering light incides on semi-transparent semi-reflecting lens 9 through dichroscope 3, reflexed on detector 10 by semi-transparent semi-reflecting lens 9.
Under regard to the operation principle of above-described embodiment and process is described in detail, because the generation of stimulated Brillouin scattering and detection belong to technology known in the field, so be no longer described in detail for this part, described belowly focus in the light path of exciting light, when exciting light and flashlight are crossing first in media as well, exciting light amplifies flashlight, remaining exciting light then incides on dichroscope 3 via completely reflecting mirror 6 and 7, due to dichroscope 3 for exciting light be reflection, and be reflect with the form of flashlight same light path, Here it is makes remaining exciting light be coaxially carry out interactional with flashlight in incident SBS medi um again, this mode not only makes remaining exciting light again be fully used, and change the mode of anterior cruciate when again utilizing, but become coaxial mode, obviously, it is larger that coaxial mode intersects area, action time is longer, thus make exciting light obtain utilizing very fully.
Obviously, no matter above-mentioned device is for pulse laser, or is all applicable for continuous laser, so stimulated Brillouin scattering intensifier of the present invention is a kind of universal intensifier.
Claims (3)
1. a universal stimulated Brillouin scattering intensifier, this device comprises: exciting light light source (1), shaping lens (2), dichroscope (3), SBS medi um (5), first completely reflecting mirror (6), second completely reflecting mirror (7), flashlight light source (8), it is characterized in that: their pass that arranges is: exciting light light source (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 SBS medi um (5) through dichroscope (3), crossing with non-zero angle with exciting light in SBS medi um (5), reflexed to completely reflecting mirror (7) from the exciting light of SBS medi um (5) transmission by the first completely reflecting mirror (6), then being totally reflected mirror (7) reflexes on dichroscope (3), dichroscope (3) reflects for exciting light for flashlight transmission, incide exciting light on dichroscope (3) by dichroscope (3) to reflex in SBS medi um (5) with the form of flashlight same light path.
2. universal stimulated Brillouin scattering intensifier according to claim 1, it is characterized in that: also comprise the semi-transparent semi-reflecting lens (9) be positioned between flashlight light source (8) and dichroscope (3), backward scattered stimulated Brillouin scattering flashlight reflexes on detector (10) via semi-transparent semi-reflecting lens (9).
3., according to the universal stimulated Brillouin scattering intensifier of claim 1 or 2, it is characterized in that: this device for pulse laser and continuous laser all applicable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937303.0A CN105406348A (en) | 2015-12-10 | 2015-12-10 | Universal stimulated Brillouin scattering enhancement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937303.0A CN105406348A (en) | 2015-12-10 | 2015-12-10 | Universal stimulated Brillouin scattering enhancement device |
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| Publication Number | Publication Date |
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| CN105406348A true CN105406348A (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510937303.0A Pending CN105406348A (en) | 2015-12-10 | 2015-12-10 | Universal stimulated Brillouin scattering enhancement device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599725A (en) * | 1983-03-08 | 1986-07-08 | The United States Of America As Represented By The United States Department Of Energy | Raman laser with controllable suppression of parasitics |
| CN105529612A (en) * | 2015-11-13 | 2016-04-27 | 华北电力大学（保定） | Cross stimulated scattering enhancement device and method |
| CN205335620U (en) * | 2015-12-10 | 2016-06-22 | 华北电力大学（保定） | General type stimulated brillouin scattering reinforcing means |
| CN205355525U (en) * | 2015-11-13 | 2016-06-29 | 华北电力大学（保定） | Intersection stimulated scattering reinforcing means |
-
2015
- 2015-12-10 CN CN201510937303.0A patent/CN105406348A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599725A (en) * | 1983-03-08 | 1986-07-08 | The United States Of America As Represented By The United States Department Of Energy | Raman laser with controllable suppression of parasitics |
| CN105529612A (en) * | 2015-11-13 | 2016-04-27 | 华北电力大学（保定） | Cross stimulated scattering enhancement device and method |
| CN205355525U (en) * | 2015-11-13 | 2016-06-29 | 华北电力大学（保定） | Intersection stimulated scattering reinforcing means |
| CN205335620U (en) * | 2015-12-10 | 2016-06-22 | 华北电力大学（保定） | General type stimulated brillouin scattering reinforcing means |
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Application publication date: 20160316 |
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