CN103293820A - Nonlinear optical effect device - Google Patents
Nonlinear optical effect device Download PDFInfo
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- CN103293820A CN103293820A CN2013101883074A CN201310188307A CN103293820A CN 103293820 A CN103293820 A CN 103293820A CN 2013101883074 A CN2013101883074 A CN 2013101883074A CN 201310188307 A CN201310188307 A CN 201310188307A CN 103293820 A CN103293820 A CN 103293820A
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Abstract
A nonlinear optical effect device comprises a laser device stack, a total reflection prism, total reflection mirrors, semi-permeable and semi-reflection mirrors and a nonlinear optical effect medium. The laser device stack comprises a plurality of laser devices which are stacked parallelly, the corresponding total reflection mirrors are respectively arranged at the rear of the laser device at the uppermost end of the laser device stack and at the rear of the laser device at the lowermost end of the laser device stack, one semi-permeable and semi-reflection mirror is arranged at the rear of each of the remaining laser devices of the laser device stack, an included angle between each of the two total reflection mirrors and the semi-permeable and semi-reflection mirrors and the optical axis of the corresponding laser device is 45 degrees, and coherence among laser beams of the various laser devices is realized by the total reflection mirrors and the semi-permeable and semi-reflection mirrors.
Description
Technical field
The present invention relates to a kind of optical devices, relate in particular to a kind of optical devices that carry out various nonlinear effects, be mainly used in the experimental provision in scientific research and the teaching, belong to the photoelectron technology field.
Background technology
Carry out the nonlinear effect of twin-beam in the prior art, for example Raman scattering, Brillouin scattering, the mode shown in Fig. 4 is adopted in Experiments of Optics such as four-wave mixing basically.Thereby two interactional laser beam of participation interact with certain included angle in medium pond or dielectric rod, the shortcoming of this mode is that the crossing length (or volume) of two bundle laser beam is very little, little reason is apparent, because the diameter of laser beam itself is less, the angle of two bundle laser beam is more big, it is just more little to intersect area so, when intersecting vertically, two bundle laser beam then intersect the area minimum, also having another mode is exactly that two light paths of restrainting laser beam are overlapped fully, but the mode of Chong Heing fully, be for two bundle laser beam are synthetic a branch of, light path arranges relative trouble, and inevitably need lose the wherein part energy of beam of laser bundle, this part energy many times often needs to lose 50%, because the general selection of light combination mirror is semi-transparent semi-reflecting.The present invention puts forward at the problems referred to above just
Summary of the invention
The present invention puts forward at above-mentioned defective, a kind of nonlinear optical effect device has been proposed, use this device, at least can one of address the above problem, it can significantly improve the laser beam energy that participates in nonlinear optical effect, makes two bundle laser beam of participation effect have big relatively crossing area or volume simultaneously.
According to embodiments of the invention, a kind of nonlinear optical effect device is provided, comprise the medium that carries out nonlinear optical effect, interactional two bundle laser beam interact in this medium.
According to another embodiment, a kind of nonlinear optical effect device is provided, comprise that laser instrument piles up, total reflection prism, completely reflecting mirror, semi-transparent semi-reflecting lens, the nonlinear optical effect medium, described laser instrument piles up a plurality of laser instruments that comprise that stacked in parallel arranges, the top and laser instrument rear bottom were provided with corresponding completely reflecting mirror during described laser instrument piled up, remaining laser instrument rear all was provided with a semi-transparent semi-reflecting lens separately during described laser instrument piled up, described two completely reflecting mirrors and described semi-transparent semi-reflecting lens and separately the angle between the optical axis of corresponding laser instrument be 45 degree, these completely reflecting mirrors and semi-transparent semi-reflecting lens are for the coherence between the laser beam that realizes each laser instrument, the laser beam of each laser instrument during described laser instrument piles up penetrates by the front end of laser instrument, the place ahead of piling up at described laser instrument is provided with total reflection prism, described total reflection prism is used for all laser beam of being piled up ejaculation by laser instrument with the angles reflection of 90 degree and impinge perpendicularly on the nonlinear optical effect medium, the other beam of laser Shu Ze that participates in nonlinear optical effect incides in the nonlinear optical effect medium in a parallel manner, the rear end of each laser instrument all had certain transmissivity during described laser instrument piled up, this transmissivity is less than the transmissivity of laser instrument front end, the cross section of the laser beam that each laser instrument is emitted is rectangle or approximate rectangular, this rectangle in the length of laser instrument stacking direction greater than the length perpendicular to stacking direction, and under the condition that the length on the stacking direction is allowing as far as possible near the length of cross section on stacking direction of laser emitting end.
According to another embodiment, during described laser instrument piles up the transmissivity of each laser instrument rear end greater than 0 less than 5%.
According to another embodiment, described completely reflecting mirror and semi-transparent semi-reflecting lens are micro-reflectors.
Description of drawings
Accompanying drawing 1 is nonlinear optical effect schematic representation of apparatus of the present invention;
Accompanying drawing 2 is the outgoing end face of single semiconductor laser in this device and the synoptic diagram of this end face glazing outgoing window;
Accompanying drawing 3 is the light distribution synoptic diagram that carry out in the case of nonlinear optical effect;
Accompanying drawing 4 is crossing situation synoptic diagram of two bundle laser beam of participation nonlinear optical effect of the prior art.
Embodiment
To describe container of the present invention in detail on basis by reference to the accompanying drawings below, at first accompanying drawing 1, piling up of Reference numeral 1 semiconductor laser of expression wherein, shown in the accompanying drawing is piling up of 6 semiconductor lasers, these laser instruments all are parallel being stacked, and need to prove herein, and laser instrument can also adopt other forms of, solid for example is as long as these laser instruments can form among similar Fig. 1 and closely pile up.Mark 2 expression completely reflecting mirrors in the accompanying drawing 1, completely reflecting mirror has two, be in the back of that and that laser instrument bottom of laser instrument the top in piling up respectively, these two completely reflecting mirrors arrange angle for its front over against the optical axis of laser instrument become miter angle.Need to prove that herein completely reflecting mirror can also be selected the prism of turning back, as long as can play the effect of total reflection.Because the restriction in space is set, be preferably micro-reflector herein herein.All be placed with a semi-transparent semi-reflecting lens 3 in remaining laser instrument back, and the optical axis that these semi-transparent semi-reflecting lens 3 angle of placing is the laser instrument corresponding with it becomes miter angle.The output of each laser instrument was penetrated by the front end of laser instrument during laser instrument piled up, be provided with total reflection prism 4 in the place ahead that laser instrument piles up, piled up the laser beam 7 of ejaculation by laser instrument through impinging perpendicularly in the medium 5 that need carry out nonlinear optical effect after the total reflection prism reflection, the other beam of laser bundle 6 of participation nonlinear optical effect is parallel inciding in the medium 5 then, like this, in medium 5, the two bundle laser beam that participate in nonlinear optical effect intersect in medium 5 with vertical angle.
The cross section of the output terminal of each laser instrument as shown in Figure 2 during wherein laser instrument piled up, wherein the cross section of the emitted laser beam of each laser instrument is rectangle or approximate rectangular, this rectangle in the length of laser instrument stacking direction greater than the length perpendicular to stacking direction, and under the condition that the length on the stacking direction is allowing as far as possible near the length of cross section on stacking direction of laser emitting end.Like this, through after the reflection of total reflection prism, laser instrument piles up the meeting formation light distribution as shown in Figure 3 in medium 5 of institute's emitting laser bundle, when the long edge lengths of laser beam is approximately equal to the long edge lengths of laser end face, will in medium 5, form the strip laser beam of an approximately continuous perpendicular media 5 so, such laser has obviously been realized intersecting with the large tracts of land of laser beam 6, and does not produce any energy loss.
Simultaneously, owing to participate in the coherence that the laser beam of nonlinear optical effect need have height, so completely reflecting mirror 3 and semi-transparent semi-reflecting lens 2 are set in the back that laser instrument piles up, require the rear end face of laser instrument to have certain light transmission simultaneously, the general requirement of transmissivity gets final product less than 5% greater than 0, be coupled in other laser instruments in piling up by completely reflecting mirror and semi-transparent semi-reflecting lens by rear end face emitting laser bundle, they interpenetrate like this, mix mutually, finally formed and be similar to the laser beam that common seed excites, the emitted laser beam of the laser beam that each laser instrument in so also just having guaranteed to be piled up by laser instrument is emitted and other laser instrument all highly is concerned with.Like this, formed approximately continuous laser beam just can be thought an approximate whole beam of laser bundle in medium 5, like this with regard to the good problem that solves the coherence.
Claims (4)
1. a nonlinear optical effect device comprises the medium that carries out nonlinear optical effect, and interactional two bundle laser beam interact in this medium.
2. nonlinear optical effect device, comprise that laser instrument piles up, total reflection prism, completely reflecting mirror, semi-transparent semi-reflecting lens, the nonlinear optical effect medium, described laser instrument piles up a plurality of laser instruments that comprise that stacked in parallel arranges, the top and laser instrument rear bottom were provided with corresponding completely reflecting mirror during described laser instrument piled up, remaining laser instrument rear all was provided with a semi-transparent semi-reflecting lens separately during described laser instrument piled up, described two completely reflecting mirrors and described semi-transparent semi-reflecting lens and separately the angle between the optical axis of corresponding laser instrument be 45 degree, these completely reflecting mirrors and semi-transparent semi-reflecting lens are for the coherence between the laser beam that realizes each laser instrument, the laser beam of each laser instrument during described laser instrument piles up penetrates by the front end of laser instrument, the place ahead of piling up at described laser instrument is provided with total reflection prism, described total reflection prism is used for all laser beam of being piled up ejaculation by laser instrument with the angles reflection of 90 degree and impinge perpendicularly on the nonlinear optical effect medium, the other beam of laser Shu Ze that participates in nonlinear optical effect incides in the nonlinear optical effect medium in a parallel manner, the rear end of each laser instrument all had certain transmissivity during described laser instrument piled up, this transmissivity is less than the transmissivity of laser instrument front end, the cross section of the laser beam that each laser instrument is emitted is rectangle or approximate rectangular, this rectangle in the length of laser instrument stacking direction greater than the length perpendicular to stacking direction, and under the condition that the length on the stacking direction is allowing as far as possible near the length of cross section on stacking direction of laser emitting end.
3. device according to claim 2, during described laser instrument piles up the transmissivity of each laser instrument rear end greater than 0 less than 5%.
4. device according to claim 2, described completely reflecting mirror and semi-transparent semi-reflecting lens are micro-reflectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310188307.4A CN103293820B (en) | 2013-05-16 | 2013-05-16 | Nonlinear optical effect device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310188307.4A CN103293820B (en) | 2013-05-16 | 2013-05-16 | Nonlinear optical effect device |
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| Publication Number | Publication Date |
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| CN103293820A true CN103293820A (en) | 2013-09-11 |
| CN103293820B CN103293820B (en) | 2016-03-02 |
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| CN201310188307.4A Expired - Fee Related CN103293820B (en) | 2013-05-16 | 2013-05-16 | Nonlinear optical effect device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741670A (en) * | 2018-11-28 | 2019-05-10 | 安徽理工大学 | A kind of nonlinear optical effect apparatus for demonstrating |
Citations (6)
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| US5946130A (en) * | 1997-10-03 | 1999-08-31 | Mcdonnell Douglas Corporation | Optical fiber amplifier network having a coherently combined output and high-power laser amplifier containing same |
| US6678294B1 (en) * | 2000-11-06 | 2004-01-13 | Northrop Grumman Corporation | Distributed feedback laser apparatus for avoiding stimulated brillouin scattering |
| US20040136052A1 (en) * | 2003-01-15 | 2004-07-15 | Hunt Jeffrey H. | Stimulated brillouin scattering optical amplifier |
| CN101026289A (en) * | 2006-02-22 | 2007-08-29 | 吴镝 | Method and device for increasing line array laser beam space density |
| CN101320190A (en) * | 2008-07-14 | 2008-12-10 | 哈尔滨工业大学 | Colinear serial beam combination apparatus based on stimulated Brillouin scattering |
| CN101320189A (en) * | 2008-07-14 | 2008-12-10 | 哈尔滨工业大学 | Non-colinear serial beam combination apparatus based on stimulated Brillouin scattering |
-
2013
- 2013-05-16 CN CN201310188307.4A patent/CN103293820B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5946130A (en) * | 1997-10-03 | 1999-08-31 | Mcdonnell Douglas Corporation | Optical fiber amplifier network having a coherently combined output and high-power laser amplifier containing same |
| US6678294B1 (en) * | 2000-11-06 | 2004-01-13 | Northrop Grumman Corporation | Distributed feedback laser apparatus for avoiding stimulated brillouin scattering |
| US20040136052A1 (en) * | 2003-01-15 | 2004-07-15 | Hunt Jeffrey H. | Stimulated brillouin scattering optical amplifier |
| CN101026289A (en) * | 2006-02-22 | 2007-08-29 | 吴镝 | Method and device for increasing line array laser beam space density |
| CN101320190A (en) * | 2008-07-14 | 2008-12-10 | 哈尔滨工业大学 | Colinear serial beam combination apparatus based on stimulated Brillouin scattering |
| CN101320189A (en) * | 2008-07-14 | 2008-12-10 | 哈尔滨工业大学 | Non-colinear serial beam combination apparatus based on stimulated Brillouin scattering |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741670A (en) * | 2018-11-28 | 2019-05-10 | 安徽理工大学 | A kind of nonlinear optical effect apparatus for demonstrating |
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| CN103293820B (en) | 2016-03-02 |
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Granted publication date: 20160302 Termination date: 20170516 |