CN104953453A - Annular cavity microchip laser device - Google Patents
Annular cavity microchip laser device Download PDFInfo
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- CN104953453A CN104953453A CN201510453135.8A CN201510453135A CN104953453A CN 104953453 A CN104953453 A CN 104953453A CN 201510453135 A CN201510453135 A CN 201510453135A CN 104953453 A CN104953453 A CN 104953453A
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Abstract
The invention discloses an annular cavity microchip laser device, relates to the technical field of laser, and aims to provide the annular cavity microchip laser device which is simple in processing and stable in output. The laser device comprises a laser crystal, a half wave plate, a Brinell plate and a magneto-optical crystal, wherein optical cement is made into a microchip structure; a pumping light beam sequentially passes through a total reflection cavity film, the laser crystal, the half wave plate and the magneto-optical crystal, is totally reflected by a partial reflection cavity film, passes through the Brinell plate and the laser crystal, and is totally reflected by the total reflection cavity film to form an annular cavity structure. The total reflection cavity film is a pumping light antireflection film and a high-reflective film of signal light generated by the laser crystal and is plated on the incidence end face of the laser crystal. The partial reflection cavity film is a high-reflective film of pumping light and a partial reflecting film of signal light generated by the laser crystal and is plated on the outgoing end face of the magneto-optical crystal. The annular cavity microchip laser device can ensure output of a single longitudinal mode; in addition, the processing of the magneto-optical crystal and the laser crystal does not contain a special angle, and is convenient to process and suitable for volume production.
Description
Technical field
The present invention, for relating to laser technology field, particularly relates to a kind of annular chamber micro-slice laser.
Background technology
For annular cavity laser, present stage adopts the nonplanar ring cavity laser crystal of monolithic to realize stable single-frequency and exports.
On-plane surface single-block annular cavity laser adopts the solid laser mediums such as Nd:YAG as laser crystal usually, and being become by whole crystal pro cessing one to have three optics inner total reflection faces and a crystal block exporting and input coupling surface, namely whole crystal block is laserresonator.After applying certain magnetic field, this crystal, not only as gain medium, also doubles as Faraday polarization apparatus simultaneously; Three optics inner total reflection faces are loop laser resonance cavity speculum, are also phase compensation wave plates; Front surface plating particular polarization film was both input and output coupling surface, simultaneously doublely did partial polarizer.Due to the magnetic rotation of crystal, the phase delay of inner total reflection and the partial polarization of coupled film system make it be configured to the laserresonator with optical-unidirectional device feature stable especially, eliminate gain space hole burning, and bonding longitudinal mode exports.
But for on-plane surface single-block annular cavity laser, the processed complex of laser crystal, laser medium is again magneto-optical crystal, and Verdet constant is less, makes two of both forward and reverse directions in chamber kinds of zlasing mode loss difference very little, under can only being operated in lower power simultaneously.
Summary of the invention
Instant invention overcomes deficiency of the prior art, provide and a kind ofly process annular chamber micro-slice laser that is simple, stable output.
To achieve these goals, the present invention adopts following technical scheme:
A kind of annular chamber micro-slice laser, comprise laser crystal, half-wave plate, Bu Shi sheet, magneto-optical crystal, micro sheet structure made by optical cement, pump beam is successively through total reflection chamber film, laser crystal, half-wave plate, magneto-optical crystal, reflect through part reflection cavity film again, light beam through Bu Shi sheet, laser crystal, then through the film total reflection of total reflection chamber, forms ring cavity structure.
Described total reflection chamber film is the high-reflecting film of the flashlight that pump light anti-reflection film and laser crystal produce, and is sputtered at the incident end face of laser crystal.Described part reflection cavity film is the part reflectance coating of the high-reflecting film of pump light and the flashlight of laser crystal generation, is sputtered at the outgoing end face of magneto-optical crystal.
Profitable fruit of the present invention is the output of both bonding longitudinal modes, and the processing of magneto-optical crystal and laser crystal is not containing special angle, easy to process, is applicable to batch production.
Accompanying drawing explanation
Fig. 1 is micro sheet structure embodiment 1 schematic diagram of annular chamber micro-slice laser of the present invention;
Fig. 2 is micro sheet structure embodiment 2 schematic diagram of annular chamber micro-slice laser of the present invention;
Fig. 3 is micro sheet structure embodiment 3 schematic diagram of annular chamber micro-slice laser of the present invention.
Embodiment
For the micro sheet structure of annular chamber micro-slice laser, the present invention will be further described by reference to the accompanying drawings below:
Embodiment 1:
As shown in Figure 1,101 is total reflection chamber film, it is the high-reflecting film of the flashlight that pump light anti-reflection film and laser crystal produce, 102 is laser crystal, 103 is half-wave plate, and 104 is Bu Shi sheet, and 105 is magneto-optical crystal, 106 is part reflection cavity film, is the part reflectance coating of the high-reflecting film of pump light and the flashlight of laser crystal generation.Twice total internal reflection in binding cavity, thus realize ring cavity structure.Also placed half-wave plate and Bu Shi sheet in chamber, half-wave plate is used as phase control element, and Bu Shi sheet is used as polarizer, also further ensures the output of single longitudinal mode simultaneously.
Embodiment 2:
As shown in Figure 2,201 is total reflection chamber film, it is the high-reflecting film of the flashlight that pump light anti-reflection film and laser crystal produce, 202 is laser crystal, 203 is half-wave plate, and 204 for being coated on the polarizing coating on magneto-optical crystal, and 205 is magneto-optical crystal, 206 is part reflection cavity film, is the part reflectance coating of the high-reflecting film of pump light and the flashlight of laser crystal generation.Compared with embodiment 1, laser crystal, half-wave plate and magneto-optical crystal optical cement are formed micro sheet structure, replace Bu Shi sheet to obtain polarised light with the polarizing coating be coated on the magneto-optical crystal plane of incidence.
Embodiment 3:
As shown in Figure 3,301 is total reflection chamber film, it is the high-reflecting film of the flashlight that pump light anti-reflection film and laser crystal produce, 302 is laser crystal, 303 for being coated on the polarizing coating on laser crystal, and 304 is half-wave plate, and 305 is magneto-optical crystal, 306 is part reflection cavity film, is the part reflectance coating of the high-reflecting film of pump light and the flashlight of laser crystal generation.Compared with embodiment 2, polarizing coating is coated on the exit facet of laser crystal.
Although specifically show in conjunction with preferred embodiment and describe the present invention; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.
Claims (3)
1. an annular chamber micro-slice laser, comprise laser crystal (102), half-wave plate (103), Bu Shi sheet (104), magneto-optical crystal (105), micro sheet structure made by optical cement, it is characterized in that: pump beam successively through total reflection chamber film (101), laser crystal (102), half-wave plate (103), magneto-optical crystal (105), reflect through part reflection cavity film (106) again, light beam is through Bu Shi sheet (104), laser crystal (102), again through film (101) total reflection of total reflection chamber, form ring cavity structure.
2. a kind of annular chamber micro-slice laser according to claim 1, is characterized in that: described total reflection chamber film (101) is the high-reflecting film of the flashlight that pump light anti-reflection film and laser crystal produce, and is sputtered at the incident end face of laser crystal (102).
3. a kind of annular chamber micro-slice laser according to claim 1, described part reflection cavity film (106) is the part reflectance coating of the high-reflecting film of pump light and the flashlight of laser crystal generation, is sputtered at the outgoing end face of magneto-optical crystal (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453135.8A CN104953453A (en) | 2015-07-29 | 2015-07-29 | Annular cavity microchip laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453135.8A CN104953453A (en) | 2015-07-29 | 2015-07-29 | Annular cavity microchip laser device |
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| Publication Number | Publication Date |
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| CN104953453A true CN104953453A (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510453135.8A Pending CN104953453A (en) | 2015-07-29 | 2015-07-29 | Annular cavity microchip laser device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4747111A (en) * | 1987-02-13 | 1988-05-24 | Hewlett-Packard Company | Quasi-planar monolithic unidirectional ring laser |
| DE4139395A1 (en) * | 1991-11-29 | 1993-06-03 | Hannover Laser Zentrum | Solid state ring laser with optical flat beam, laser crystal optical diode - has polariser, Faraday rotator, and electro-optical modulatable crystal as reciprocal polarisation rotator |
| US6064684A (en) * | 1998-04-21 | 2000-05-16 | Korea Research Institute Of Standards And Science | Unidirectionally operating laser apparatus using semimonolithic ring cavity |
| CN101257183A (en) * | 2008-03-28 | 2008-09-03 | 福州高意通讯有限公司 | Single block annular resonant cavity laser |
| CN101272033A (en) * | 2008-05-12 | 2008-09-24 | 福州高意通讯有限公司 | Ring shaped resonance cavity laser |
-
2015
- 2015-07-29 CN CN201510453135.8A patent/CN104953453A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4747111A (en) * | 1987-02-13 | 1988-05-24 | Hewlett-Packard Company | Quasi-planar monolithic unidirectional ring laser |
| DE4139395A1 (en) * | 1991-11-29 | 1993-06-03 | Hannover Laser Zentrum | Solid state ring laser with optical flat beam, laser crystal optical diode - has polariser, Faraday rotator, and electro-optical modulatable crystal as reciprocal polarisation rotator |
| US6064684A (en) * | 1998-04-21 | 2000-05-16 | Korea Research Institute Of Standards And Science | Unidirectionally operating laser apparatus using semimonolithic ring cavity |
| CN101257183A (en) * | 2008-03-28 | 2008-09-03 | 福州高意通讯有限公司 | Single block annular resonant cavity laser |
| CN101272033A (en) * | 2008-05-12 | 2008-09-24 | 福州高意通讯有限公司 | Ring shaped resonance cavity laser |
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Application publication date: 20150930 |