CN202025979U - LD (laser diode) pump full-solid state green-light laser - Google Patents
LD (laser diode) pump full-solid state green-light laser Download PDFInfo
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- CN202025979U CN202025979U CN 201120107138 CN201120107138U CN202025979U CN 202025979 U CN202025979 U CN 202025979U CN 201120107138 CN201120107138 CN 201120107138 CN 201120107138 U CN201120107138 U CN 201120107138U CN 202025979 U CN202025979 U CN 202025979U
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Abstract
The utility model belongs to the technical field of lasers and in particular relates to an LD (laser diode) pump all-solid-state green-light laser with a separable structure of a pump source and a resonance cavity. The main body of the laser consists of a hermetically arranged semiconductor pump source cavity, a hermetically-arranged resonance cavity body and a laser light source which are arranged in a split type; a 808nm optical-fiber-output semiconductor diode is arranged in the semiconductor pump source cavity body; a flange joint is arranged on the left side of the resonance cavity body; the cavity bodies are connected through the optical fiber; the laser power source is connected with two cavity bodies through a cable wire; a light outlet is arranged on the right side of the resonance cavity body; and an optical coupling system, a totally reflecting mirror, a laser gain medium, a frequency doubling crystal and an output focusing system are arranged sequentially in the resonance cavity body from the flange joint to the light outlet. With the adoption of the LD pump all-solid-state green-light laser, the remote control can be realized, small-power no-electricity laser output can be realized in special environments (such as underground, dangerous gas explosion chamber and the like), and large-power laser output also can be realized.
Description
Technical field
The utility model belongs to laser technology field, specifically is the LD pumped all-solid-state green (light) laser of a kind of pumping source and resonant cavity separable structure.
Background technology
Semiconductor laser intracavity frequency doubling green (light) laser is a kind of laser technology that good prospect is arranged, advantage such as have that efficient height, laser output beam quality are good, running is reliable, volume is little and the life-span is long has obtained using widely in fields such as the laser processing of marine exploration, electrooptical countermeasures, pollution detection and high-power macro-energy, laser medical equipment.Under some specific environment (containing the high-risk explosion gas), there is not electrification output owing to need laser to adopt, as underground work, down-hole detection, mine lighting etc.Need the green laser output of low noise high stability under some particular demands, as laser acquisition, laser medicine etc.Conventional semiconductors intracavity frequency doubling green (light) laser is sealed the laser diode resonant cavity, in the laser power supply facilities must be arranged on the one hand, therefore can't realize not having the electrification operation; On the other hand, because laser diode itself breaks down easily, need often to change.Change diode and need open laser, thereby influence the cleannes of resonant cavity, and, increased operation easier because the replacing whole optical path of diode need be readjusted.
The utility model content
In order to overcome the above-mentioned defective of semiconductor pump pumping full-solid green (light) laser, the utility model provides the LD pumped all-solid-state green (light) laser of a kind of pumping source and resonant cavity separable structure.
Laser bodies described in the utility model is had semiconductor pumping sources cavity that sealing is provided with, is had resonant cavity cavity and laser power supply three parts that sealing is provided with and form by split; Be provided with 808nm optical fibre output semiconductor diode in the semiconductor pumping sources cavity; Described resonant cavity cavity left side is provided with flange-interface, the output tail optical fiber of the semiconductor diode in semiconductor pumping sources cavity flange-interface direct and on the resonant cavity cavity is connected or by optical fiber FC wire jumper two cavitys is connected, and described laser power supply is connected with semiconductor pumping sources cavity resonant cavity cavity by cable; Resonant cavity cavity right side is provided with light-emitting window, be disposed with optical coupling system, total reflective mirror, gain medium, frequency-doubling crystal, output focusing system between from the flange-interface to the light-emitting window in the described resonant cavity cavity, wherein optionally between frequency-doubling crystal and output focusing system, be provided with the Q-switching device that is used to realize transferring Q output, perhaps between gain medium and I class phase matched frequency-doubling crystal, be provided with the full-wave plate that is used to realize the output of low noise high stable laser; The center of above-mentioned flange-interface, optical coupling system, total reflective mirror, gain medium, frequency-doubling crystal, output focusing system, Q-switching device or full-wave plate all is positioned on the optical axis.
The utility model is respectively arranged with below described gain medium and frequency-doubling crystal when being used to realize the output of high power green light laser, the LD cooling system and the crystal cooling system of the accurate temperature control of pumping source and crystal.Described optical coupling system is made up of two non-spherical lenses.Described flange-interface, optical coupling system, total reflective mirror, gain medium, frequency-doubling crystal, output focusing system, Q-switching device and full-wave plate (15) are fixed on the base plate of resonant cavity cavity by adjustable support.Described gain medium is selected Nd:YVO for use
4Or Nd:YAG crystal; Frequency-doubling crystal is selected KTP or lbo crystal for use.When selecting I class phase-matching crystals LBO for use, select for use and between gain medium and frequency-doubling crystal, insert the 1064nm full-wave plate of realizing the output of low noise high stable 532nm laser as frequency-doubling crystal.Described LD cooling system and crystal cooling system are made up of heat sink, temperature sensor, semiconductor chilling plate and fan.Described laser power supply can be realized the adjustable LD power supply of high stable electric current and realize the accurate temperature controller of optical fibre output semiconductor diode, gain medium and three devices of frequency-doubling crystal.
The beneficial effects of the utility model are:
The utility model laser is sealed in pumping source, resonant cavity and Laser Power Devices respectively in three fixed cavities, pumping source adopts the diode of optical fiber coupling output, resonant cavity one side is provided with the optical fiber flange-interface, and pumping source can adopt tail optical fiber directly to be connected with resonant cavity or adopt the FC optical patchcord to connect.Under the low-power, do not have the electrification running thereby the resonant cavity cavity need not to be provided with crystal cooling system realization laser output (resonant cavity cavity), employing optical fiber FC wire jumper connection semiconductor pumping sources cavity resonant cavity cavity can and then be realized the remote control to laser output.Because pumping source independently is installed in the semiconductor pumping sources cavity, and adopt optical fiber to connect cavity semiconductor pumping sources resonant cavity cavity, therefore can realize convenient maintenance operation the pumping source semiconductor diode.Place the feasible loss minimum of light in resonant cavity of having only 1064nm of full-wave plate between gain medium and the I class phase matched frequency-doubling crystal, reduce laser noise effectively, reduce the longitudinal mode competition, thereby realize the output of low noise high stability laser.
This laser structure compactness, volume are little, and the power output area 0-15W of laser is adjustable, and instability is less than 0.5%.But have functions such as remote control, the convenient maintain and replace of laser diode, the output of low noise high stable green glow, can be widely used in fields such as operation under the quick-fried environment of danger, optics processing, medicine equipment.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the utility model embodiment cooling system structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the technical program is described further.
Shown in accompanying drawing 1,2, the utility model embodiment laser bodies is had semiconductor pumping sources cavity 1 that sealing is provided with, is had resonant cavity cavity 2 and laser power supply 20 3 parts that sealing is provided with and form by split; Be provided with 808nm optical fibre output semiconductor diode 3 in the semiconductor pumping sources cavity 1; Described resonant cavity cavity 2 left sides are provided with flange-interface 6, and the output tail optical fiber of the semiconductor diode in the semiconductor pumping sources cavity 1 flange-interface 6 direct and on the resonant cavity cavity 2 is connected or by optical fiber FC wire jumper two cavitys is connected; Resonant cavity cavity 2 right sides are provided with light-emitting window 12, the described resonant cavity cavity 2 interior optical coupling systems 7 that are disposed with 12 from flange-interface 6 to light-emitting window, total reflective mirror 8, gain medium 9, frequency-doubling crystal 10, output focusing system 11, wherein optionally between frequency-doubling crystal 10 and output focusing system 11, be provided with the Q-switching device 14 that is used to realize transferring Q output, perhaps between gain medium 9 and I class phase matched frequency-doubling crystal 10, be provided with the full-wave plate 15 that is used to realize the output of low noise high stable laser, above-mentioned flange-interface 6, optical coupling system 7, total reflective mirror 8, gain medium 9, frequency-doubling crystal 10, output focusing system 11, the center of Q-switching device 14 or full-wave plate 15 all is positioned on the optical axis 4.Below gain medium 9 and frequency-doubling crystal 10, can be respectively arranged with when being used to realize the output of high power green light laser the LD cooling system 5 and the crystal cooling system 13 of the accurate temperature control of pumping source and crystal.Described LD cooling system 5 and crystal cooling system 13 are made up of heat sink 16, temperature sensor 17, semiconductor chilling plate 18 and fan 19.
Optical coupling system 7 described in the utility model is made up of two non-spherical lenses.Described flange-interface 6, optical coupling system 7, total reflective mirror 8, gain medium 9, frequency-doubling crystal 10, output focusing system 11, Q-switching device 14 and full-wave plate 15 are fixed on the base plate of resonant cavity cavity 2 by adjustable support.Described gain medium 9 can be selected Nd:YVO for use
4Or the Nd:YAG crystal, frequency-doubling crystal 10 is selected KTP or lbo crystal for use.And when selecting I class phase-matching crystals LBO as frequency-doubling crystal for use, select for use and between gain medium 9 and frequency-doubling crystal 10, insert the 1064nm full-wave plate 15 of realizing the output of low noise high stable 532nm laser.Laser power supply 20 is connected with cavity 2 with cavity 1 by cable, one the tunnel is output as adjustable power supply 21 can carry out the adjustable power supply of electric current to semiconductor diode, and three tunnel outputs 22,23,24 that can realize optical fibre output semiconductor diode 3, gain medium 9 and 10 3 device accurate temperature controls of frequency-doubling crystal are arranged.
The described laser of present embodiment is from point of practical application, in Machine Design, each parts such as device placement, device heat radiation have all been done rational design, as: 1, pumping source and resonant cavity are sealed in the different cavitys, adopt the FC optical patchcord to connect, can realize that low-power do not have electric formula at a distance and control.2, be provided with crystal double-circuit temperature control system in the resonant cavity, laser crystal adopts spring-piece type steel structure spare in conjunction with indium sheet technique for packing, can realize the two-way accurate temperature controlling of laser crystal and frequency-doubling crystal under high-power requirement, effectively improves crystal thermal effect.3, each parts adopt mechanical fine-tuning location in the resonant cavity, and light path is easy to adjust simple.4, alternative adjusting Q crystal and the full-wave plate placed in the resonant cavity can realize transferring Q output and the output of low noise high stability green glow respectively.
This laser structure compactness, volume are little, and the power output area 0-15W of laser is adjustable, and stability is less than 0.5%.Functions such as long-range nothing electricity formula is controlled, laser diode convenient changing, the output of low noise high stable green glow can be realized, fields such as operation under the quick-fried environment of danger, optics processing, medicine equipment can be widely used in.
Claims (7)
1. LD pumped all-solid-state green (light) laser is characterized in that: this laser bodies is had semiconductor pumping sources cavity (1) that sealing is provided with, is had resonant cavity cavity (2) and laser power supply (20) three parts that sealing is provided with and form by split; Be provided with 808nm optical fibre output semiconductor diode (3) in the semiconductor pumping sources cavity (1); Described resonant cavity cavity (2) left side is provided with flange-interface (6), the output tail optical fiber of the semiconductor diode in the semiconductor pumping sources cavity (1) flange-interface (6) direct and on the resonant cavity cavity (2) is connected or by optical fiber FC wire jumper two cavitys is connected, and described laser power supply (20) is connected with semiconductor pumping sources cavity (1) resonant cavity cavity (2) by cable; Resonant cavity cavity (2) right side is provided with light-emitting window (12), be disposed with optical coupling system (7) from flange-interface (6) to the light-emitting window (12) in the described resonant cavity cavity (2), total reflective mirror (8), gain medium (9), frequency-doubling crystal (10), output focusing system (11), wherein optionally between frequency-doubling crystal (10) and output focusing system (11), be provided with the Q-switching device (14) that is used to realize transferring Q output, perhaps between gain medium (9) and I class phase matched frequency-doubling crystal (10), be provided with the full-wave plate (15) that is used to realize the output of low noise high stable laser, above-mentioned flange-interface (6), optical coupling system (7), total reflective mirror (8), gain medium (9), frequency-doubling crystal (10), output focusing system (11), the center of Q-switching device (14) or full-wave plate (15) all is positioned on the optical axis (4).
2. a kind of LD pumped all-solid-state green (light) laser according to claim 1, it is characterized in that: below gain medium (9) and frequency-doubling crystal (10), be respectively arranged with when being used to realize the output of high power green light laser the LD cooling system (5) and the crystal cooling system (13) of the accurate temperature control of pumping source and crystal.
3. a kind of LD pumped all-solid-state green (light) laser according to claim 1, it is characterized in that: described optical coupling system (7) is made up of two non-spherical lenses.
4. a kind of LD pumped all-solid-state green (light) laser according to claim 1 is characterized in that: described flange-interface (6), optical coupling system (7), total reflective mirror (8), gain medium (9), frequency-doubling crystal (10), output focusing system (11), Q-switching device (14) and full-wave plate (15) are fixed on the base plate of resonant cavity cavity (2) by adjustable support.
5. a kind of LD pumped all-solid-state green (light) laser according to claim 1 is characterized in that: its described gain medium (9) is selected Nd:YVO for use
4Or the Nd:YAG crystal, frequency-doubling crystal (10) is selected KTP or lbo crystal for use.
6. a kind of LD pumped all-solid-state green (light) laser according to claim 5, it is characterized in that: when selecting I class phase-matching crystals LBO for use, select for use and between gain medium (9) and frequency-doubling crystal (10), insert the 1064nm full-wave plate (15) of realizing the output of low noise high stable 532nm laser as frequency-doubling crystal.
7. a kind of LD pumped all-solid-state green (light) laser according to claim 2 is characterized in that: described LD cooling system (5) and crystal cooling system (13) are made up of heat sink (16), temperature sensor (17), semiconductor chilling plate (18) and fan (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120107138 CN202025979U (en) | 2011-04-13 | 2011-04-13 | LD (laser diode) pump full-solid state green-light laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120107138 CN202025979U (en) | 2011-04-13 | 2011-04-13 | LD (laser diode) pump full-solid state green-light laser |
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| Publication Number | Publication Date |
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| CN202025979U true CN202025979U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120107138 Expired - Fee Related CN202025979U (en) | 2011-04-13 | 2011-04-13 | LD (laser diode) pump full-solid state green-light laser |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733986A (en) * | 2015-03-31 | 2015-06-24 | 无锡庆源激光科技有限公司 | Ultraviolet laser shell laser with independent intelligent temperature control function |
| CN106025781A (en) * | 2016-06-24 | 2016-10-12 | 桂林弘光光电科技有限公司 | Self-adaptive adjustment YAG solid-state laser device and application method thereof |
| CN106711756A (en) * | 2017-02-14 | 2017-05-24 | 华东师范大学 | Laser module group and laser control instrument comprising same |
| CN107732637A (en) * | 2017-10-18 | 2018-02-23 | 哈尔滨工业大学 | A kind of automatic temperature-controlled solid-state laser apparatus |
| CN108448378A (en) * | 2018-03-28 | 2018-08-24 | 赵智亮 | 3 temperature-compensating 473nm blue light continuous wave lasers |
-
2011
- 2011-04-13 CN CN 201120107138 patent/CN202025979U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733986A (en) * | 2015-03-31 | 2015-06-24 | 无锡庆源激光科技有限公司 | Ultraviolet laser shell laser with independent intelligent temperature control function |
| CN104733986B (en) * | 2015-03-31 | 2018-01-16 | 无锡庆源激光科技有限公司 | Ultraviolet laser housing assembly with autonomous intelligence temperature controlling function |
| CN106025781A (en) * | 2016-06-24 | 2016-10-12 | 桂林弘光光电科技有限公司 | Self-adaptive adjustment YAG solid-state laser device and application method thereof |
| CN106025781B (en) * | 2016-06-24 | 2019-04-26 | 桂林弘光光电科技有限公司 | A kind of the YAG solid state laser and its application method of automatic adjusument |
| CN106711756A (en) * | 2017-02-14 | 2017-05-24 | 华东师范大学 | Laser module group and laser control instrument comprising same |
| CN107732637A (en) * | 2017-10-18 | 2018-02-23 | 哈尔滨工业大学 | A kind of automatic temperature-controlled solid-state laser apparatus |
| CN108448378A (en) * | 2018-03-28 | 2018-08-24 | 赵智亮 | 3 temperature-compensating 473nm blue light continuous wave lasers |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20130413 |