CN102082391B - Optical fiber coupling semiconductor laser output light band indicating device - Google Patents
Optical fiber coupling semiconductor laser output light band indicating device Download PDFInfo
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- CN102082391B CN102082391B CN2010105862957A CN201010586295A CN102082391B CN 102082391 B CN102082391 B CN 102082391B CN 2010105862957 A CN2010105862957 A CN 2010105862957A CN 201010586295 A CN201010586295 A CN 201010586295A CN 102082391 B CN102082391 B CN 102082391B
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- doubling crystal
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Abstract
The invention discloses an optical fiber coupling semiconductor laser output light band indicating device. The device comprises a gain medium, a frequency doubling crystal, a fixing piece and a fixing sleeve, wherein both the gain medium and the frequency doubling crystal are arranged in inner holes of the fixing piece; and the fixing piece is inserted into an inner hole of the fixing sleeve. The device reduces a visible light semiconductor laser and a corresponding power supply thereof, so that an optical fiber coupling semiconductor laser output light band is indicated by visible light generated by an infrared laser under the action of a crystal; the service life of the device is consistent with an overall laser; moreover, if a problem appears, the crystal can be replaced at any time conveniently and rapidly.
Description
Technical field
The present invention relates to the device of a kind of fiber coupled laser diode output light belt indication, belong to semiconductor laser output light belt indication technical field.
Background technology
Semiconductor laser has that volume is little, in light weight, efficient is high, the life-span is long, be easy to modulation and advantage such as cheap, obtained using widely in industry, medical science and military field.Because many advantages such as optical fiber coupling output laser has use flexibly, and sealing is used to laser, guarantees the laser works environment, and the output facula pattern is good receive much concern.The infrared semiconductor optical fiber output laser of some special purpose needs visible light to indicate, and especially for aspects such as Medical Devices and industry manufacturings, all needs visible light as indication.Traditional method is at the same time space that infrared semiconductor laser the advances optical fiber a branch of visible light (generally being 650nm ruddiness) that is coupled, and need in coupling process, accomplish the coupling of infrared light and ruddiness in this case simultaneously, must influence coupling efficiency.And owing to less than infrared semiconductor laser, be difficult to the average life of visible light semiconductor laser change, pilot light lost efficacy and global failure so whole laser is frequent.
Summary of the invention
The present invention is directed to the deficiency that existing fiber coupling semiconductor laser output light belt visible light indication technology exists; A kind of fiber coupled laser diode output light belt indicating device is provided; This device adopts crystal to introduce pilot light, and the indication of the optical fiber output laser of completion does not need independent visible light source, has alleviated the complexity of coupling; And reduced the introducing of visible light power supply, simplified power supply.
Fiber coupled laser diode output light belt indicating device of the present invention adopts following technical solution:
This fiber coupled laser diode output light belt indicating device comprises gain media, frequency-doubling crystal, fixture and fixed sleeving; Gain media and frequency-doubling crystal are installed in the endoporus of fixture, and fixture inserts in the endoporus of fixed muffle.
Light entrance face vapor deposition 808nm anti-reflection film, 1064nm or the 946nm high-reflecting film of gain media and 532nm or 473nm high-reflecting film triple-layer coating, light-emitting face vapor deposition 808nm anti-reflection film, 1064nm or the 946nm anti-reflection film of gain media and 532nm or 473nm high-reflecting film triple-layer coating.Light entrance face vapor deposition 808nm anti-reflection film, 1064nm or the 946nm anti-reflection film of frequency-doubling crystal and 532nm or 473nm high-reflecting film triple-layer coating; Light-emitting face vapor deposition 808nm anti-reflection film, 1064nm or the 946nm high-reflecting film of frequency-doubling crystal and 532nm or 473nm anti-reflection film triple-layer coating.
Gain media crystal by adopting Nd:YVO4 and Nd:YAG crystal, frequency-doubling crystal adopts the KDP crystal.
During use, the connector lock pin of semiconductor laser is also injected the endoporus of fixed muffle, make optical fiber and gain media and frequency-doubling crystal concentric.Gain media absorption portion 808nm laser inspires 1064nm laser as pump light, converts 532nm visible light and remaining 808nm laser into same direction output through frequency-doubling crystal then, plays the effect of the invisible 808nm laser of indication.
The present invention has reduced visible light semiconductor laser and corresponding power supply thereof; Fiber coupled laser diode output light belt is indicated through the effect generation visible light of crystal by infrared laser; Its life-span is consistent with whole laser; And if crystal goes wrong and can change at any time, and is convenient and swift.
Description of drawings
Accompanying drawing is the structural representation of gain media and frequency-doubling crystal among the present invention.
Among the figure: 1, gain media, 2, frequency-doubling crystal, 3, fixture; 4, the light entrance face of gain media, 5, the light gasing surface of gain media, 6, the optical input surface of frequency-doubling crystal; 7, the light gasing surface of frequency-doubling crystal, 8, the output connector lock pin of optical fiber output laser, 9, fixed sleeving.
Embodiment
Shown in accompanying drawing, fiber coupled laser diode output light belt indicating device of the present invention comprises gain media 1, frequency-doubling crystal 2, fixture 3 and fixed sleeving 9.Gain media 1 adopts Nd:YVO4, crystal such as Nd:YAG, the light entrance face 4 vapor deposition 808nm anti-reflection films of gain media, 1064nm (or 946nm) high-reflecting film and 532nm (or 473nm) high-reflecting film triple-layer coating; Light-emitting face 5 vapor deposition 808nm anti-reflection films, 1064nm (or 946nm) anti-reflection film and 532nm (or 473nm) high-reflecting film of gain media.Frequency-doubling crystal 2 adopts the KDP crystal; Light entrance face 6 vapor deposition 808nm anti-reflection films, 1064nm (or 946nm) anti-reflection film and 532nm (or 473nm) high-reflecting film of frequency-doubling crystal, light-emitting face 7 vapor deposition 808nm anti-reflection films, 1064nm (or 946nm) high-reflecting film and 532nm (or 473nm) anti-reflection film of frequency-doubling crystal.Fixture 3 is cylindric, and for copper, hole shape and size are consistent with frequency-doubling crystal 2 with gain media 1 in it, the output connector lock pin 8 consistent (so that fixing with same fixed muffle 9) of its external diameter and optical fiber output laser.Gain media 1 is installed in the endoporus of fixture 8 with frequency-doubling crystal 2, and gain media 1 is fixed together with the way of frequency-doubling crystal 2 through bonding or bonding, also can separately use.The connector lock pin 8 of semiconductor laser and copper fixture 4 make optical fiber and gain media 1 and frequency-doubling crystal 2 concentric respectively by the endoporus two ends of injecting metal fixed muffle 9.
Wherein gain media 1 and frequency-doubling crystal 2 can gain media 2 and the distance of connector lock pin 8 reduce as far as possible; Should be controlled in the 1mm, (fiber optic materials is a glass, and light gets into the air from glass and has the loss about 4% if the fiber end face in the connector lock pin 8 is coated with anti-reflection film; After being coated with anti-reflection film; This loss can be controlled at below 0.2%, and heating also seldom can contact under the situation of this little loss; Be unlikely to heat and be transmitted on the gain media, gain media is produced harmful effect.), then gain media can contact with lock pin physics.
Gain media absorption portion 808nm laser inspires 1064nm laser as pump light, converts 532nm visible light and remaining 808nm laser into same direction output through frequency-doubling crystal then, plays the effect of the invisible 808nm laser of indication.
Claims (3)
1. a fiber coupled laser diode output light belt indicating device is characterized in that: comprise gain media, frequency-doubling crystal, fixture and fixed sleeving; Gain media and frequency-doubling crystal are installed in the endoporus of fixture; Fixture inserts in the endoporus of fixed sleeving; The output connector lock pin of semiconductor laser and fixture inject the endoporus two ends of fixed sleeving respectively, make optical fiber and gain media and frequency-doubling crystal concentric.
2. fiber coupled laser diode output light belt indicating device according to claim 1; It is characterized in that: light entrance face vapor deposition 808nm anti-reflection film, 1064nm or the 946nm high-reflecting film of said gain media and 532nm or 473nm high-reflecting film triple-layer coating, light-emitting face vapor deposition 808nm anti-reflection film, 1064nm or the 946nm anti-reflection film of gain media and 532nm or 473nm high-reflecting film triple-layer coating.
3. fiber coupled laser diode output light belt indicating device according to claim 1 is characterized in that: light entrance face vapor deposition 808nm anti-reflection film, 1064nm or the 946nm anti-reflection film of said frequency-doubling crystal and 532nm or 473nm high-reflecting film triple-layer coating; Light-emitting face vapor deposition 808nm anti-reflection film, 1064nm or the 946nm high-reflecting film of frequency-doubling crystal and 532nm or 473nm anti-reflection film triple-layer coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105862957A CN102082391B (en) | 2010-12-14 | 2010-12-14 | Optical fiber coupling semiconductor laser output light band indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105862957A CN102082391B (en) | 2010-12-14 | 2010-12-14 | Optical fiber coupling semiconductor laser output light band indicating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102082391A CN102082391A (en) | 2011-06-01 |
| CN102082391B true CN102082391B (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105862957A Expired - Fee Related CN102082391B (en) | 2010-12-14 | 2010-12-14 | Optical fiber coupling semiconductor laser output light band indicating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107703587A (en) * | 2017-10-27 | 2018-02-16 | 苏州东辉光学有限公司 | A kind of twin-core contact pin plated film frock |
| CN113324666B (en) * | 2021-05-28 | 2022-12-09 | 中国科学院西安光学精密机械研究所 | Femtosecond laser pulse carrier envelope phase offset frequency detection device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6184727A (en) * | 1984-10-03 | 1986-04-30 | Canon Inc | Coordinates indicating device |
| CN1144709A (en) * | 1995-06-23 | 1997-03-12 | 中国科学院长春应用化学研究所 | Multifunctional neodymium-doped yttrium aluminate laser dental therapeutic machine |
| JP2000174398A (en) * | 1998-12-10 | 2000-06-23 | Sony Corp | Semiconductor light-emitting device, indication device and light transmitting device |
| CN100581498C (en) * | 2007-03-12 | 2010-01-20 | 王峙皓 | 1064nm semiconductor laser therapeutic instrument |
| CN101515071B (en) * | 2009-04-07 | 2010-08-04 | 中国科学院长春光学精密机械与物理研究所 | Indicating device for vertical quadruple cross wires in single laser light source horizontal exit direction |
| CN101862902A (en) * | 2010-03-11 | 2010-10-20 | 广东海洋大学 | Handheld laser welding method and device |
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