CN204287551U - The laser of a kind of macro-energy, narrow spaces and the coupling device of optical fiber - Google Patents
The laser of a kind of macro-energy, narrow spaces and the coupling device of optical fiber Download PDFInfo
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- CN204287551U CN204287551U CN201420848206.5U CN201420848206U CN204287551U CN 204287551 U CN204287551 U CN 204287551U CN 201420848206 U CN201420848206 U CN 201420848206U CN 204287551 U CN204287551 U CN 204287551U
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Abstract
The utility model is a kind of macro-energy, the laser of narrow spaces and the coupling device of optical fiber, relates to laser technology field.This laser fibre-optical coupling device comprises: on the optical axis of laser beam, from laser instrument, sets gradually beam-expanding system, binary optical lenses, focus lamp and optical fiber.The utility model solves existing when laser energy is excessive, and the energy density of laser beam exceedes threshold value and often punctures air, and the efficiency being coupled into optical fiber reduces greatly, can not realize the problem of the coupling between the nanosecond pulse laser of macro-energy and optical fiber.
Description
Technical field
The utility model relates to laser technology field, particularly relates to a kind of macro-energy, the laser of narrow spaces and the coupling device of optical fiber.
Background technology
Air need be had certain threshold energy density by laser breakdown, and after exceeding this threshold value, air breakdown just can occur.Prior art is that laser beam is directly focused on optical fiber core diameter size by scioptics mostly, is then coupled directly in optical fiber.When laser energy is excessive, the energy density of laser beam exceedes threshold value and often punctures air, the efficiency being coupled into optical fiber is reduced greatly, thus can not realize the coupling between the nanosecond pulse laser of macro-energy and optical fiber.
Utility model content
The purpose of this utility model is to provide the laser of a kind of macro-energy, narrow spaces and the coupling device of optical fiber, thus solves the foregoing problems existed in prior art.
To achieve these goals, a kind of macro-energy of the utility model, the laser of narrow spaces and the coupling device of optical fiber, this laser fibre-optical coupling device comprises: on the optical axis of laser beam, from laser instrument, set gradually beam-expanding system, binary optical lenses, focus lamp and optical fiber.
Preferably, described beam-expanding system comprises: plano-concave lens and plano-convex lens, and the distance between described plano-concave lens and described plano-convex lens regulates arbitrarily, and the laser beam launched by laser instrument first through described plano-concave lens, then passes described plano-convex lens.
Preferably, described focus lamp will regulate arbitrarily at the optical axis direction of described light beam.
Preferably, described beam-expanding system, described binary optical lenses are all coated with the anti-reflection film corresponding with the optical maser wavelength that described laser instrument is launched with described focus lamp.
More preferably, described optical maser wavelength is by any one wavelength of described Optical Fiber Transmission.
Preferably, described optical fiber is fixed on three-dimensional adjustable adjustment rack by joint.
Preferably, described laser instrument is commercially available and can launches by the laser instrument of any one wavelength of described Optical Fiber Transmission.
The beneficial effects of the utility model are:
The utility model by adding binary optical lenses in focusing system, after making Laser Focusing, energy density near laser beam focal reduces, the coupling of macro-energy nanosecond laser and optical fiber can be realized in atmosphere, this device is not only applicable to the coupling fiber of nanosecond laser pulses, is applicable to the coupling fiber of psec and femtosecond pulse yet.
Accompanying drawing explanation
Fig. 1 is the structural representation of macro-energy described in embodiment, the laser of narrow spaces and the coupling device of optical fiber;
Wherein, 1 represents laser instrument, and 2 represent plano-concave lens, and 3 represent plano-convex lens, and 4 represent binary optical eyeglass, and 5 represent focus lamp, and 6 represent optical fiber.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the utility model is further elaborated.Should be appreciated that embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment
With reference to Fig. 1, the laser of macro-energy, narrow spaces and the coupling device of optical fiber in the present embodiment, comprising: on the optical axis of laser beam, from laser instrument 1, sets gradually beam-expanding system, binary optical lenses 4, focus lamp 5 and optical fiber 6.
In the present embodiment, described beam-expanding system comprises: plano-concave lens 2 and plano-convex lens 3, and distance between described plano-concave lens 2 and described plano-convex lens 3 is adjustable, the laser beam launched by laser instrument 1 first through described plano-concave lens 2, then through described plano-convex lens 3.Distance between two eyeglasses in described beam-expanding system can regulate, and ensures to be exported by the collimation of the light beam of beam-expanding system.The beam diameter that laser instrument is launched by described beam-expanding system expands, and reduces the angle of divergence of light beam, ensures that hot spot can fully act on binary optical eyeglass.
In the present embodiment, binary optical eyeglass 4 utilizes the diffraction principle of light, the intensity of light beam transverse field is redistributed, and forms intensity and is similar to uniform optical field distribution.Be specially: the light beam injected wherein, by the principle of binary optical, is carried out the shaping of space distribution by described binary optical eyeglass 4, light beam transverse field distributed more even, change the size of light spot shape and focal beam spot, be conducive to the focusing of macro-energy light beam.
In the present embodiment, described focus lamp 5 will regulate arbitrarily at the optical axis direction of described light beam.The effect of described focus lamp 5 be beam sizes is focused on enough little, to meet the requirement of coupling fiber to spot size.By regulating focus lamp 5 and binary optical eyeglass 4 apart from the position changing the focus formed through focus lamp 5.
In the present embodiment, described beam-expanding system, described binary optical lenses 4 and described focus lamp 5 are all coated with the anti-reflection film corresponding with the optical maser wavelength that described laser instrument 1 is launched, and the optical maser wavelength that described laser instrument is launched is 1064nm, 532nm, 355nm or 266nm.
In the present embodiment, described optical fiber 6 is fixed on three-dimensional adjustable adjustment rack by joint.By regulating the aligning between three-dimensional adjustable adjustment rack guarantee optical fiber and focal beam spot.
Because described in the utility model, laser instrument 1 is commercially available and the laser instrument of any one wavelength that can be transmitted by optical fiber 6, so the utility model does not exist the limitation of usable range.
By adopting technique scheme disclosed in the utility model, obtain effect useful as follows:
The utility model by adding binary optical lenses in focusing system, after making Laser Focusing, energy density near laser beam focal reduces, the coupling of macro-energy nanosecond laser and optical fiber can be realized in atmosphere, this device is not only applicable to the coupling fiber of nanosecond laser pulses, is applicable to the coupling fiber of psec and femtosecond pulse yet.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should look protection domain of the present utility model.
Claims (7)
1. a macro-energy, the laser of narrow spaces and the coupling device of optical fiber, it is characterized in that, this laser fibre-optical coupling device comprises: on the optical axis of laser beam, from laser instrument (1), set gradually beam-expanding system, binary optical lenses (4), focus lamp (5) and optical fiber (6).
2. the laser of macro-energy, narrow spaces and the coupling device of optical fiber according to claim 1, it is characterized in that, described beam-expanding system comprises: plano-concave lens (2) and plano-convex lens (3), and the distance between described plano-concave lens (2) and described plano-convex lens (3) regulates arbitrarily, the laser beam launched by laser instrument (1) first through described plano-concave lens (2), then passes described plano-convex lens (3).
3. the laser of macro-energy, narrow spaces and the coupling device of optical fiber according to claim 1, it is characterized in that, described focus lamp (5) regulates arbitrarily at the optical axis direction of described laser beam.
4. the laser of macro-energy, narrow spaces and the coupling device of optical fiber according to claim 1, it is characterized in that, described beam-expanding system, described binary optical lenses (4) are all coated with the anti-reflection film corresponding with the optical maser wavelength that described laser instrument (1) is launched with described focus lamp (5).
5. the laser of macro-energy, narrow spaces and the coupling device of optical fiber according to claim 4, it is characterized in that, described optical maser wavelength is any one wavelength transmitted by described optical fiber (6).
6. the laser of macro-energy, narrow spaces and the coupling device of optical fiber according to claim 1, is characterized in that, described optical fiber (6) is fixed on three-dimensional adjustable adjustment rack by joint.
7. the laser of macro-energy, narrow spaces and the coupling device of optical fiber according to claim 1, it is characterized in that, described laser instrument (1) is commercially available and can launches the laser instrument of any one wavelength transmitted by described optical fiber (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420848206.5U CN204287551U (en) | 2014-12-26 | 2014-12-26 | The laser of a kind of macro-energy, narrow spaces and the coupling device of optical fiber |
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| CN201420848206.5U CN204287551U (en) | 2014-12-26 | 2014-12-26 | The laser of a kind of macro-energy, narrow spaces and the coupling device of optical fiber |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589547A (en) * | 2016-07-08 | 2018-01-16 | 中国科学院大连化学物理研究所 | A kind of converting means of solid light beam and annular beam |
| CN109940268A (en) * | 2019-03-26 | 2019-06-28 | 中国科学院长春光学精密机械与物理研究所 | A kind of Optical devices for realizing laser cutting with welding application switching |
| CN111736262A (en) * | 2019-03-25 | 2020-10-02 | 统雷有限公司 | Techniques for optimizing fiber coupling |
| CN111990975A (en) * | 2020-09-09 | 2020-11-27 | 南京诺源医疗器械有限公司 | Infrared tumor imaging system and method |
| CN114976839A (en) * | 2021-05-20 | 2022-08-30 | 吉林省科英医疗激光有限责任公司 | Solid laser |
-
2014
- 2014-12-26 CN CN201420848206.5U patent/CN204287551U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589547A (en) * | 2016-07-08 | 2018-01-16 | 中国科学院大连化学物理研究所 | A kind of converting means of solid light beam and annular beam |
| CN111736262A (en) * | 2019-03-25 | 2020-10-02 | 统雷有限公司 | Techniques for optimizing fiber coupling |
| CN109940268A (en) * | 2019-03-26 | 2019-06-28 | 中国科学院长春光学精密机械与物理研究所 | A kind of Optical devices for realizing laser cutting with welding application switching |
| CN109940268B (en) * | 2019-03-26 | 2021-09-03 | 中国科学院长春光学精密机械与物理研究所 | Optical device for realizing laser cutting and welding application switching |
| CN111990975A (en) * | 2020-09-09 | 2020-11-27 | 南京诺源医疗器械有限公司 | Infrared tumor imaging system and method |
| CN114976839A (en) * | 2021-05-20 | 2022-08-30 | 吉林省科英医疗激光有限责任公司 | Solid laser |
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