CN106611935A - Full-semiconductor laser light source device for underwater laser illumination - Google Patents
Full-semiconductor laser light source device for underwater laser illumination Download PDFInfo
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- CN106611935A CN106611935A CN201611226129.XA CN201611226129A CN106611935A CN 106611935 A CN106611935 A CN 106611935A CN 201611226129 A CN201611226129 A CN 201611226129A CN 106611935 A CN106611935 A CN 106611935A
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- laser
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- semiconductor laser
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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
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4012—Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
A full-semiconductor laser light source device for underwater laser illumination comprises a laser driver, a blue-green semiconductor laser array, a collimating lens, a homogenizing lens, and a zoom optical lens group. The laser driver excites the blue-green semiconductor laser array to output blue-green laser. Collimated laser is output after the blue-green laser is collimated by the collimating lens. The homogenizing lens homogenizes an output light field, and outputs homogenized laser. After the homogenized laser is adjusted by the zoom optical lens group, emission laser is output to illuminate a target. According to the patent, multiple laser units are combined for array laser illumination. By combining multiple laser units, speckles can be suppressed effectively, and the imaging quality of laser illumination can be improved. Matching output wavelengths are selected for illumination according to different water transmittance conditions. Thus, the device has the advantages as follows: the output wavelength and the transmission window match each other; the output power and light field distribution are stable, the output light field distribution is uniform; the reliability is high; and the conversion efficiency is high.
Description
Technical field
The invention belongs to semiconductor laser technique field, is related to a kind of all-semiconductor laser light for underwater laser illumination
Source device.
Background technology
Blue green light (wavelength is 430nm～570nm, is found for 1963) can penetrate the seawater of hundreds of upper km, based on bluish-green
The undersea detection and lighting apparatus of light can be used for monitoring and the positioning of submarine target, be usually used in marine organisms research, seabed ground
Looks exploration, ocean engineering Facilities Construction and upkeep operation, military monitoring, identification and scouting, submarine target find, search for and help
Rescue, detect a mine, target following, the application such as Navigation Control and target identification.
Light source needed for underwater laser illumination should meet following condition：Optical maser wavelength is matched with waters transmission window, output work
Rate and optical field distribution are stable, output light field is evenly distributed, reliability high, (coherence easily produces by force diffraction effect to light source eliminating coherence
Should, affect image quality) etc..The blue-green Laser type that current underwater operation is used is mainly frequency multiplication Nd：YAG laser or
Argon ion laser etc., wherein frequency multiplication Nd：YAG laser output wavelength 532nm, argon ion laser output wavelength 488nm and
514nm.Laser lighting light source luminescent element number based on all solid state laser or argon ion laser is few, excitation wavelength list
One and spectrum width is narrow, light source itself coherence is strong, easily produces diffraction effect, affects image quality.
Also to have been reported that and carry out underwater lighting as light source using LED have good advantage in terms of light source eliminating coherence, but
LED has in itself that transmission directivity is poor, and irradiation distance is limited, the not high deficiency of conversion efficiency.
The content of the invention
In order to solve problems of the prior art, the invention provides a kind of partly lead for the complete of underwater laser illumination
Volumetric laser light supply apparatus, using device of the semiconductor laser as underwater lighting LASER Light Source for directly exporting bluish-green laser,
According to different water quality transmitance conditions, it is illuminated from the output wavelength of matching.
The technical proposal for solving the technical problem of the invention is as follows：
For the all-semiconductor laser light-source device of underwater laser illumination, the device includes：Laser driver, blue green light half
Conductor Laser array, collimating mirror, even light microscopic and Zoom optical microscope group；The laser driver encourages blue green light semiconductor laser battle array
Row output bluish-green laser, through collimating mirror collimation output collimation laser, is homogenized output light field by even light microscopic, and output homogenizes sharp
Light, through Zoom optical microscope group output transmitting laser is adjusted, and irradiates target.
The invention has the beneficial effects as follows：Relative in prior art using single laser instrument as the easy phase dry labor of lighting source
For raw noise, this patent proposes to adopt multiple laser cell combination array formula laser lightings, by the combination of many laser cells,
Can effectively suppress speckle to produce, improve laser lighting image quality.According to different water quality transmitance conditions, from the defeated of matching
Go out wavelength to be illuminated, match with transmission window with output wavelength, power output and optical field distribution are stable, output light field distribution
Uniformly, the advantage such as reliability height, conversion efficiency height.
Description of the drawings
The all-semiconductor laser light-source device structural representation that Fig. 1 present invention is illuminated for underwater laser.
Fig. 2 is blue green light laser array schematic diagram.
Fig. 3 is the laser cell device schematic diagram of single wavelength combination.
Fig. 4 is the laser cell device schematic diagram of different wave length combination.
Fig. 5 is to homogenize mirror output light field distribution schematic diagram.
In figure：1st, laser driver, 2, blue green light semiconductor laser array, 201, bluish-green laser, 21, laser cell device
Part, 211, the laser cell of wavelength X 1,212, the laser cell of wavelength X 2,3, collimating mirror, 301, collimation laser, 4, even light microscopic, 401,
Homogenize laser, 5, Zoom optical microscope group and 501, transmitting laser.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and examples.
Light supply apparatus of the present invention is adopted and directly export the semiconductor laser of bluish-green laser as underwater laser lighting source,
It is made up of laser driver 1, blue green light semiconductor laser array 2, collimating mirror 3, even light microscopic 4 and Zoom optical microscope group 5, such as Fig. 1
It is shown.The excitation blue green light of laser driver 1 semiconductor laser array 2 exports bluish-green laser 201, then exports through collimating mirror 3
Collimation laser 301, then homogenized output light field by even light microscopic 4, output homogenizes laser 401, eventually passes Zoom optical microscope group 5 and adjusts
Section output transmitting laser 501, is imaged onto target.
Wherein, the Output of laser wavelength of blue green light semiconductor laser array 2 is distributed in 430nm～570nm, according to different
Marine site transmitance requires that (from the high optical maser wavelength of transmitance, transmitance is higher, decays less, shines to select matching optical maser wavelength
Prescribed distance is more remote), such as illuminate in limpid blue water, from 430nm～470nm blue lasers of inclined shortwave, and for port
The more muddy seawater region in mouth or coastal waters, from 550nm～570nm wavelength green laser more preferably, as shown in table 1.
Table 1 is the corresponding transmission window of different quality
Blue green light semiconductor laser array 2 is multiple textural associations of laser cell device 21, as shown in Figure 2.As only in spy
Determine region to use, such as deep-sea detecting region, seawater is limpid, then be directly fully integrated identical ripple on each laser cell device 21
Long laser cell 211, as shown in figure 3, under identical transmitting bore, blue laser element number is more, exports blue light work(
Rate is higher, and laser lighting effect is better, and irradiation distance is more remote.The switching in multiple marine sites need to be such as carried out, such as deep-sea detecting is both needed, and
Harbor area need to be illuminated, then can by integrated different wave length, such as the laser cell 211 of wavelength X 1 and the laser cell of wavelength X 2,212
Laser array in one, as shown in Figure 4.
The different wave length laser cell structure employed in blue green light semiconductor laser array 2 that adopted or for edge emitting
Structure, or for surface launching structure, or for the combination of both structures.
Laser driver 1 is the combination of multiple Laser Power Devices, and blue green light semiconductor laser array 2 can be driven respectively
It is dynamic, or overall driving, or driven according to different optical maser wavelength packets.
Collimating mirror 3 is used to collimate the output laser of blue green light semiconductor laser array 2, can be with laser array point
From, also can be directly integrated on laser array, it is monolithic or multi-disc lens combination, structure is circular or cylindrical lens, its face
Type is sphere or aspherical.
Even light microscopic 4 is optical tunnel or fly eye lens array, optical field distribution is homogenized, it is possible to according to different photographs
Bright requirement, exports the optical field distribution of different shapes such as linear, circular or square, as shown in Figure 5.
Zoom optical microscope group 5 be focus adjustable, as matter through optimization optical system, will homogenize optical field imaging to difference away from
In image planes, the laser lighting of different distance target is realized.
All optical surfaces of collimating mirror 3, even light microscopic 4 and Zoom optical microscope group 5 are required to be plated in bluish-green photosemiconductor and swash
High antireflection film in the range of the output laser wavelength of optical arrays 2, to reduce itself loss.
Claims (7)
1. the all-semiconductor laser light-source device of underwater laser illumination is used for, it is characterised in that the device includes：Laser Driven
Device, blue green light semiconductor laser array, collimating mirror, even light microscopic and Zoom optical microscope group；The laser driver encourages blue green light
Semiconductor laser array exports bluish-green laser, by even light microscopic that output light field is uniform through collimating mirror collimation output collimation laser
Change, output homogenizes laser, through Zoom optical microscope group output transmitting laser is adjusted, irradiate target.
2. it is according to claim 1 for underwater laser illumination all-semiconductor laser light-source device, it is characterised in that should
Device is followed successively by from left to right or from right to left：Laser driver, blue green light semiconductor laser array, collimating mirror, even light microscopic
With Zoom optical microscope group.
3. it is according to claim 1 for underwater laser illumination all-semiconductor laser light-source device, it is characterised in that institute
The two-dimensional combination that blue green light semiconductor laser array is many laser cells is stated, can be in the scope that optical maser wavelength is 430nm～570nm
Inside realize that single wavelength laser is exported, or different wave length combination output.
4. it is according to claim 3 for underwater laser illumination all-semiconductor laser light-source device, it is characterised in that institute
When stating the combination output of blue green light semiconductor laser array different wave length, structure is edge emitting structure or surface launching structure.
5. it is according to claim 1 for underwater laser illumination all-semiconductor laser light-source device, it is characterised in that institute
It is monolithic or multi-disc lens combination to state collimating mirror, and structure is circular or cylindrical lens, and its face type is sphere or aspherical.
6. it is according to claim 1 for underwater laser illumination all-semiconductor laser light-source device, it is characterised in that institute
Even light microscopic is stated for optical tunnel or fly eye lens array.
7. it is according to claim 1 for underwater laser illumination all-semiconductor laser light-source device, it is characterised in that institute
The all optical surfaces for stating collimating mirror, even light microscopic and Zoom optical microscope group are plated in blue green light semiconductor laser array output laser
High antireflection film in wavelength band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226129.XA CN106611935A (en) | 2016-12-27 | 2016-12-27 | Full-semiconductor laser light source device for underwater laser illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226129.XA CN106611935A (en) | 2016-12-27 | 2016-12-27 | Full-semiconductor laser light source device for underwater laser illumination |
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| CN106611935A true CN106611935A (en) | 2017-05-03 |
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| CN201611226129.XA Pending CN106611935A (en) | 2016-12-27 | 2016-12-27 | Full-semiconductor laser light source device for underwater laser illumination |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702005A (en) * | 2017-11-13 | 2018-02-16 | 广州天地智能科技有限公司 | It is a kind of dissipate less, the strong Underwater Optical compensation device of penetration power |
| CN109526101A (en) * | 2018-11-22 | 2019-03-26 | 中国科学院长春光学精密机械与物理研究所 | A kind of lighting device illuminated with Yu Haiyang |
| CN109974666A (en) * | 2019-05-15 | 2019-07-05 | 好优投科技(深圳)有限公司 | A kind of underwater environment observation system based on mixing light source |
| CN113555769A (en) * | 2021-07-01 | 2021-10-26 | 浙江大学 | Underwater laser transmitter capable of generating various laser patterns |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4347485A (en) * | 1978-01-10 | 1982-08-31 | The United States Of America As Represented By The Secretary Of The Navy | Excimer-pumped blue-green laser |
| CN204424681U (en) * | 2012-01-31 | 2015-06-24 | 菲力尔系统公司 | Lighting device and illuminator |
| CN105301749A (en) * | 2014-08-01 | 2016-02-03 | 山东华光光电子有限公司 | Laser zoom lighting module with optic axis fine adjustment and applications thereof |
| CN106066172A (en) * | 2016-06-13 | 2016-11-02 | 长春德信光电技术有限公司 | A kind of laser illuminator for underground distance gated detection imaging |
| CN205754956U (en) * | 2016-05-23 | 2016-11-30 | 浙江大学 | One spectrum adjustable illumination device under water |
-
2016
- 2016-12-27 CN CN201611226129.XA patent/CN106611935A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4347485A (en) * | 1978-01-10 | 1982-08-31 | The United States Of America As Represented By The Secretary Of The Navy | Excimer-pumped blue-green laser |
| CN204424681U (en) * | 2012-01-31 | 2015-06-24 | 菲力尔系统公司 | Lighting device and illuminator |
| CN105301749A (en) * | 2014-08-01 | 2016-02-03 | 山东华光光电子有限公司 | Laser zoom lighting module with optic axis fine adjustment and applications thereof |
| CN205754956U (en) * | 2016-05-23 | 2016-11-30 | 浙江大学 | One spectrum adjustable illumination device under water |
| CN106066172A (en) * | 2016-06-13 | 2016-11-02 | 长春德信光电技术有限公司 | A kind of laser illuminator for underground distance gated detection imaging |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702005A (en) * | 2017-11-13 | 2018-02-16 | 广州天地智能科技有限公司 | It is a kind of dissipate less, the strong Underwater Optical compensation device of penetration power |
| CN109526101A (en) * | 2018-11-22 | 2019-03-26 | 中国科学院长春光学精密机械与物理研究所 | A kind of lighting device illuminated with Yu Haiyang |
| CN109974666A (en) * | 2019-05-15 | 2019-07-05 | 好优投科技(深圳)有限公司 | A kind of underwater environment observation system based on mixing light source |
| CN113555769A (en) * | 2021-07-01 | 2021-10-26 | 浙江大学 | Underwater laser transmitter capable of generating various laser patterns |
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Application publication date: 20170503 |
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