CN204835201U - Transfer Q laser instrument - Google Patents
Transfer Q laser instrument Download PDFInfo
- Publication number
- CN204835201U CN204835201U CN201520477868.0U CN201520477868U CN204835201U CN 204835201 U CN204835201 U CN 204835201U CN 201520477868 U CN201520477868 U CN 201520477868U CN 204835201 U CN204835201 U CN 204835201U
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- China
- Prior art keywords
- laser
- reflecting cavity
- cavity mirror
- pyramid
- retroeflection
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Abstract
The utility model discloses a transfer Q laser instrument, include: the laser instrument is as pump light source output pumping laser beam, laser medium, arrange the laser instrument in after, receive the pumping laser and restraint and produce stimulated emission, the reflecting cavity mirror, including an integrative reflecting cavity mirror and the 2nd reflecting cavity mirror that sets up, a reflecting cavity mirror is placed in between laser instrument and the laser medium, the pyramid, arrange laser medium in after, parallel retroeflection stimulated emission, the stimulated emission of the parallel retroeflection of pyramid is received to the polaroid, and the reflection is exported the S polarized component among the stimulated emission and is passed through the P polarized component, the 2nd reflecting cavity mirror, place the polaroid in after, retroeflection stimulated emission. The utility model provides an enough export linearly polarized light and easy installation, stable in structure's a transfer Q laser instrument.
Description
Technical field
The utility model relates to a kind of laser technology, and more particularly, it relates to a kind of Q-switched laser.
Background technology
Q-regulating technique is again Q switching technology, is to be launched in the extremely narrow pulse of width by the continuous laser energy compression generally exported, thus makes the peak power of light source can improve a kind of technology of several order of magnitude.
It is on November 6th, 2009 in the applying date, publication number is disclose a kind of electric-optically Q-switched laser resonator in the patent documentation (hereinafter referred to as documents 1) of CN101719627A, comprise total reflective mirror, laser medium, electro-optic Q-switched crystal and outgoing mirror, laser medium and electro-optic Q-switched crystal are all between total reflective mirror and outgoing mirror, pumping source adopts side or end pumping mode, it is characterized in that: electro-optic Q-switched crystal is cut surface near the logical light face of laser medium, this cut surface is coated with antireflective coating, electro-optic Q-switched crystal equals α or 90 °-α away from the logical light face of laser medium and the angle of described cut surface, α=90 °-arctg (n), n is the refractive index of electro-optic Q-switched crystal.
Total reflective mirror in documents 1 and the Main Function of outgoing mirror form laserresonator, exports to form laser generation.It is identical with the effect of two reflecting cavity mirrors of laserresonator in prior art, the depth of parallelism between the two must be less than 10 "; and in order to ensure that the depth of parallelism between two reflecting cavity mirrors meets standard all the time, the technical staff of present stage normally adopts mode that is bonding or even welding to be fixed by two reflecting cavity mirrors.It needed repeatedly to calibrate before fixing two reflecting cavity mirrors avoids installing dislocation; Simultaneously when occurrence temperature offsets, reflecting cavity mirror can depart from its installation site.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model be to provide one can polarization light output and being easy to install, constitutionally stable a kind of Q-switched laser.
For achieving the above object, the utility model provides following technical scheme:
A kind of Q-switched laser, comprising:
Pump laser, exports pumping laser beam as pump light source;
Laser medium, after being placed in laser, receiving laser beam and produces stimulated radiation;
Reflecting cavity mirror, comprise the first reflecting cavity mirror and the second reflecting cavity mirror that are wholely set, described first reflecting cavity mirror is placed between described pump laser and laser medium;
Pyramid, after being placed in laser medium, stimulated radiation described in parallel retroeflection;
Polarizer, receives the stimulated radiation of the parallel retroeflection of described pyramid, and reflection exports S polarized component in described stimulated radiation and transmitting P-type polarisation component;
Described second reflecting cavity mirror, after being placed in described polarizer, stimulated radiation described in retroeflection.
Preferably, saturable absorber is equipped with between described laser medium and pyramid.
Preferably, the half-wave plate of stimulated radiation is equipped with between described pyramid and polarizer.
Compared with prior art, the utility model utilizes the retroreflection characteristics of pyramid and the first reflecting cavity mirror be wholely set and the second reflecting cavity mirror, the pumping laser bundle exported is produced after stimulated radiation through laser medium in pyramid, retroeflection occurs by pump laser; Stimulated radiation through pyramid retroeflection exports the linearly polarized light preset at polarizer place, non-linear polarization light then can produce retroeflection through after polarizer on the second reflecting cavity mirror, at the first reflecting cavity mirror, rise in value between pyramid and the second reflecting cavity mirror photon, stable polarization light output and can not be subject to the factors such as temperature and affect its stability.
Accompanying drawing explanation
Fig. 1 is a kind of fundamental diagram adjusting Q pump laser embodiment of the utility model;
Fig. 2 is a kind of front view adjusting Q pump laser embodiment reflecting cavity mirror of the utility model.
Accompanying drawing marks: 1, pump laser; 2, reflecting cavity mirror; 21, the first reflecting cavity mirror; 22, the second reflecting cavity mirror; 3, laser medium; 4, saturable absorber; 5, pyramid; 6, half-wave plate; 7, polarizer.
Embodiment
Q pump laser embodiment is adjusted to be described further referring to figs. 1 through Fig. 2 to the utility model one.
What the present embodiment was exemplary provides a kind of tune Q pump laser, it comprises the semiconductor pump laser exporting pumping pumping laser bundle, and semiconductor pump laser exports pumping pumping laser bundle and enters in laser medium 3 after the first reflecting cavity mirror 21 of reflecting cavity mirror 2;
Laser medium 3 exports the side of stimulated radiation to pyramid 5, and in pyramid 5 inside after triple reflection, by stimulated radiation along the parallel and reverse retroeflection of its incident direction on polarizer 7;
Polarizer 7 is according to its feature, the S polarized component of stimulated radiation exports outside to after the surface of polarizer 7 is reflected, the P polarization of stimulated radiation divide through after polarizer 7 on the second reflecting cavity mirror 22 along its incident back reflection, and again through polarizer 7, realize excited radiation light at the first reflecting cavity mirror 21, form resonance between pyramid 5 and the second reflecting cavity mirror 22.
Here the second reflecting cavity mirror can be coated with high-reflecting film.
The present embodiment mainly utilizes the retroreflection characteristics of pyramid 5, and the first reflecting cavity mirror 21 of reflecting cavity mirror 2 and the second reflecting cavity mirror 22 are upper and lower parts of same reflection chamber mirror 2; So only need after pyramid 5 location and installation, perpendicular to the first reflecting cavity mirror 21 stimulated radiation pumping laser bundle after carrying out track correct through pyramid 5, will inevitably be parallel be reflected on the second reflecting cavity mirror 22, formed resonance chamber.
In addition, this enforcement is mounted with saturable absorber 4 between laser medium 3 and pyramid 5, passive Q-adjusted in order to carry out.
Moreover before the present embodiment can arrange half-wave plate 6 before polarizer 7, the polarization direction of the stimulated radiation by the parallel retroeflection of pyramid can regulate by half-wave plate 6, so that suitable ratio stimulated radiation is polarized sheet 7 reflect output.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. a Q-switched laser, is characterized in that, comprising:
Pump laser, exports pumping laser beam as pump light source;
Laser medium, after being placed in laser, receiving laser beam and produces stimulated radiation;
Reflecting cavity mirror, comprise the first reflecting cavity mirror and the second reflecting cavity mirror that are wholely set, described first reflecting cavity mirror is placed between described pump laser and laser medium;
Pyramid, after being placed in laser medium, stimulated radiation described in parallel retroeflection;
Polarizer, receives the stimulated radiation of the parallel retroeflection of described pyramid, and reflection exports S polarized component in described stimulated radiation and transmitting P-type polarisation component;
Described second reflecting cavity mirror, after being placed in described polarizer, stimulated radiation described in retroeflection.
2. a kind of Q-switched laser according to claim 1, is characterized in that, is equipped with saturable absorber between described laser medium and pyramid.
3. according to a kind of Q-switched laser according to claim 1, it is characterized in that, between described pyramid and polarizer, be equipped with the half-wave plate of stimulated radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477868.0U CN204835201U (en) | 2015-07-04 | 2015-07-04 | Transfer Q laser instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477868.0U CN204835201U (en) | 2015-07-04 | 2015-07-04 | Transfer Q laser instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204835201U true CN204835201U (en) | 2015-12-02 |
Family
ID=54692760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520477868.0U Expired - Fee Related CN204835201U (en) | 2015-07-04 | 2015-07-04 | Transfer Q laser instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204835201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807474A (en) * | 2019-03-21 | 2019-05-28 | 广州安特激光技术有限公司 | A kind of hard brittle material laser precision machining equipment |
| CN110970786A (en) * | 2019-11-20 | 2020-04-07 | 湖北华中光电科技有限公司 | Small folding cavity human eye safety laser |
-
2015
- 2015-07-04 CN CN201520477868.0U patent/CN204835201U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807474A (en) * | 2019-03-21 | 2019-05-28 | 广州安特激光技术有限公司 | A kind of hard brittle material laser precision machining equipment |
| CN110970786A (en) * | 2019-11-20 | 2020-04-07 | 湖北华中光电科技有限公司 | Small folding cavity human eye safety laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20200704 |