CN106654845B - Integrated electro-optic Q-switch - Google Patents
Integrated electro-optic Q-switch Download PDFInfo
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- CN106654845B CN106654845B CN201611069740.6A CN201611069740A CN106654845B CN 106654845 B CN106654845 B CN 106654845B CN 201611069740 A CN201611069740 A CN 201611069740A CN 106654845 B CN106654845 B CN 106654845B
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1123—Q-switching
- H01S3/115—Q-switching using intracavity electro-optic devices
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The invention relates to an integrated electro-optic Q-switch. The integrated electro-optical Q-switch comprises a shell which is internally communicated along the length direction, wherein an electro-optical crystal is arranged in the shell, a positive conducting electrode and a negative conducting electrode are connected to the electro-optical crystal, and a positive wire connecting hole and a negative wire connecting hole are respectively arranged at the positions, corresponding to the positive conducting electrode and the negative conducting electrode, of the side part of the shell; a wave plate adjusting mechanism is arranged in a shell at the rear side of the electro-optic crystal along the light travelling direction, a 1/4 wave plate is movably arranged in the wave plate adjusting mechanism, and a wave plate adjusting hole is arranged at the side part of the shell corresponding to the 1/4 wave plate. Therefore, each part of the Q-switch is reasonably integrated into a whole, the adjustment and debugging operations after the Q-switch is assembled are avoided, the Q-switch is convenient to use with a laser in a matched mode, the Q-switch and the laser are convenient and quick to install and connect, the installation and the operation of workers are convenient, and the labor intensity of the installation of the workers is reduced.
Description
Technical field:
the invention relates to an integrated electro-optic Q-switch.
The background technology is as follows:
the electro-optic Q-switching is a Q-switching mode commonly used in the technical fields of laser at present, and the electro-optic Q-switching is a Q-switching device made of an electro-optic effect of an electro-optic crystal, so that the Q-switching function of laser is realized, namely, the refractive index of the electro-optic crystal is changed when a certain voltage is applied to the electro-optic crystal, and the Q-switching of the laser is realized. In the prior art, in order to realize the laser Q-switching of the electro-optic crystal, the 1/4 wave plate and the like are assembled on the lasers one by one, then the transmission and the closing of light rays are realized through debugging and adjustment, the installation and the operation are complex during the assembly, the debugging process after the assembly to the lasers is complex, and the use and the operation efficiency of the lasers are influenced.
The invention comprises the following steps:
the invention provides an integrated electro-optical Q-switch, which has reasonable and novel structural design, reasonably integrates all components of the Q-switch into a whole, and the integrated Q-switch is a debugged switch, so that the adjustment and debugging operations after the Q-switch is assembled are avoided, the Q-switch is convenient to use in cooperation with a laser, and the Q-switch and the laser in the structure are convenient and quick to install and connect, so that the installation and operation of workers are facilitated, the labor intensity of the installation of the workers is reduced, and the problems in the prior art are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an integrated electro-optical Q-switch comprises a shell which is internally communicated along the length direction, wherein an electro-optical crystal is arranged in the shell, a positive conducting electrode and a negative conducting electrode are connected to the electro-optical crystal, and a positive wire connecting hole and a negative wire connecting hole are respectively arranged at the positions, corresponding to the positive conducting electrode and the negative conducting electrode, of the side part of the shell; a wave plate adjusting mechanism is arranged in the shell at the rear side of the electro-optic crystal along the light advancing direction, a 1/4 wave plate is movably arranged in the wave plate adjusting mechanism, and a wave plate adjusting hole is arranged at the side part of the shell corresponding to the 1/4 wave plate; a polarizing plate is mounted in the housing at the rear side of the wave plate adjusting mechanism in the traveling direction of light by a polarization mounting mechanism.
The electro-optic crystal is arranged in the shell through O-shaped rings arranged at two ends of the electro-optic crystal, and a jackscrew which is in contact with the electro-optic crystal is arranged at the side part of the shell.
The wave plate adjusting mechanism comprises a sleeve seat with two-stage stepped holes inside, the two-stage stepped holes of the sleeve seat are sequentially a second-stage stepped hole and a first-stage stepped hole along the light proceeding direction, and a first compression ring and a 1/4 wave plate are sequentially arranged in the second-stage stepped hole of the sleeve seat along the light proceeding direction.
A third-stage stepped hole is arranged in the sleeve seat between the second-stage stepped hole and the O-shaped ring, and a second pressing ring and a glass window are sequentially arranged in the third-stage stepped hole along the advancing direction of light.
The sleeve seat is connected in the shell through threads, a jackscrew which is abutted against the sleeve seat is arranged on the side wall of the shell, and an assembly groove is formed in the tail end of the sleeve seat along the advancing direction of light.
The polarization placing mechanism comprises two clamping mechanisms which clamp two sides of the polarizing plate respectively, the clamping mechanisms comprise U-shaped clamping grooves and connecting columns which are integrally connected to the back sides of the U-shaped clamping grooves, mounting holes which penetrate through the connecting columns and the U-shaped clamping grooves are formed in the positions of the axes of the connecting columns, mounting bolts connected with the shell are assembled in the mounting holes, and the tail ends of the mounting bolts are abutted against the sides of the polarizing plate in the U-shaped clamping grooves.
A moisture-proof glass window is provided in the housing at the front side of the electro-optic crystal in the direction of travel of the light.
An end cover groove is arranged at the front end part of the shell along the advancing direction of light, and a front transparent end cover is assembled in the end cover groove through a screw.
A rear transparent end cap is fitted with screws at the rear end of the housing in the direction of travel of the light.
The polarization angle of the polaroid is 55-57 degrees.
The invention adopts the structure, the structural design is reasonable and novel, each component of the Q-switch is reasonably integrated into a whole, the integrated Q-switch is a debugged switch, the adjustment and debugging operations after the Q-switch is assembled are avoided, the Q-switch is convenient to be matched with a laser for use, the installation and connection of the Q-switch and the laser are convenient and quick, the installation and operation of staff are convenient, the labor intensity of the staff is reduced, the operation and the use of the laser are convenient after the Q-switch and the laser are assembled and connected, the light path adjustment is convenient and quick, the operation is easy, the flexibility of the use of the laser is enhanced, and the invention is suitable for wide popularization and application.
Description of the drawings:
FIG. 1 is a schematic cross-sectional view of the present invention.
FIG. 2 is a schematic cross-sectional view of a cannula holder according to the present invention.
Fig. 3 is a schematic structural view of the clamping mechanism of the present invention.
In the figure, a shell body 1, an electro-optical crystal 2, a positive electrode 3, a negative electrode 4, a rear transparent end cover 5, a positive wire connecting hole 6, a negative wire connecting hole 7, a 8 1/4 wave plate, a 9 wave plate adjusting hole, a 10 polaroid, an 11O ring, a 12 jackscrew, a 13 sleeve seat, a 14 second-stage stepped hole, a 15 first-stage stepped hole, a 16 first compression ring, a 17 third-stage stepped hole, a 18 second compression ring, a 19 glass window, a 20 front transparent end cover, a 21 assembly groove, a 22U clamping groove, a 23 connecting column, a 24 mounting bolt and a 25 moisture-proof glass window.
The specific embodiment is as follows:
in order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1-3, an integrated electro-optical Q-switch comprises a shell 1 penetrating along the inside in the length direction, wherein an electro-optical crystal 2 is arranged in the shell 1, a positive conducting electrode 3 and a negative conducting electrode 4 are connected to the electro-optical crystal 2, and a positive conducting wire connecting hole 6 and a negative conducting wire connecting hole 7 are respectively arranged on the side part of the shell 1 corresponding to the positive conducting electrode 3 and the negative conducting electrode 4; a wave plate adjusting mechanism is arranged in the shell 1 at the rear side of the electro-optic crystal 2 along the light travelling direction, a 1/4 wave plate 8 is movably arranged in the wave plate adjusting mechanism, and a wave plate adjusting hole 9 is arranged at the side part of the shell 1 and corresponds to the 1/4 wave plate 8; a polarizing plate 10 is mounted in the housing 1 on the rear side of the wave plate adjusting mechanism in the traveling direction of light by a polarization mounting mechanism.
In order to ensure the stability of the electro-optical crystal in the shell, the electro-optical crystal 2 is arranged in the shell 1 through O-shaped rings 11 arranged at two ends of the electro-optical crystal, and a jackscrew 12 abutting against the electro-optical crystal 2 is arranged at the side part of the shell 1.
The wave plate adjusting mechanism comprises a sleeve seat 13 with two stages of stepped holes inside, wherein the two stages of stepped holes of the sleeve seat 13 are sequentially provided with a second stage stepped hole 14 and a first stage stepped hole 15 along the light proceeding direction, and a first compression ring 16 and a 1/4 wave plate 8 are sequentially arranged in the second stage stepped hole 14 of the sleeve seat 13 along the light proceeding direction; the 1/4 wave plate 8 is abutted against the side wall of the first-stage stepped hole 15, and the first compression ring 16 is abutted against the 1/4 wave plate 8.
In order to achieve a good dampproof effect on the 1/4 wave plate and ensure the stability of the laser switch, a third-stage stepped hole 17 is arranged in a sleeve seat 13 between the second-stage stepped hole 14 and the O-shaped ring 11, and a second pressing ring 18 and a glass window 19 are sequentially arranged in the third-stage stepped hole 17 along the light advancing direction. The glass window 19 is in contact with the side wall of the secondary stepped hole 14 and the first pressing ring 16, and the second pressing ring 18 is in contact with the glass window 19.
In order to screw the sleeve seat 13 into the shell 1 conveniently and fast, ensure the stability of the connection between the shell and the sleeve seat 13 and ensure the stable regulation and control function of the laser switch, the sleeve seat 13 is connected into the shell 1 through threads, a jackscrew 20 which is abutted against the sleeve seat 13 is arranged on the side wall of the shell 1, and an assembly groove 21 is arranged at the tail end of the sleeve seat 13 along the light advancing direction. Wherein, when screwing the sleeve holder 13 into the housing 1, it is connected to the assembly groove 21 by a special tool, and then the sleeve holder 13 is driven by the turning tool, and the sleeve holder 13 is screwed into the housing 1 and screwed with the phase.
In order to guarantee the stability of polaroid, prevent that the polaroid from taking place the change of polarization angle at the in-process of using, polarization sets up the mechanism and includes two clamping mechanisms that block polaroid 10 both sides limit respectively, and clamping mechanism includes U type draw-in groove 22 and an organic whole and link post 23 in U type draw-in groove 22 dorsal part, is equipped with the mounting hole that runs through link post 23 and U type draw-in groove 22 in the axle center department that links post 23, is equipped with in the mounting hole and is connected with casing 1 and install bolt 24, the tail end of install bolt 24 in U type draw-in groove 22 with the side looks butt of polaroid 10. Wherein the mounting bolt 24 abuts against the polarizer 10, and when the polarization angle of the polarizer 10 is changed, the rotation of the mounting bolt 24 can help to adjust the alignment of the polarizer 10.
In order to exert a good moisture-proof effect on the electro-optical crystal 2, ensure the stability of the electro-optical crystal 2 in use for a long time, ensure that the refractive index of the electro-optical crystal 2 does not change due to moisture, and provide a moisture-proof glass window 25 in the housing 1 on the front side of the electro-optical crystal 2 along the traveling direction of light.
In order to ensure the service life of the Q-switch, dust is prevented from entering the housing 1, an end cover groove is provided at the front end of the housing 1 along the light traveling direction, and a front transparent end cover 20 is assembled in the end cover groove by screws.
In order to ensure the service life of the Q-switch, dust is prevented from entering the housing 1, and a rear transparent end cap 5 is attached to the rear end of the housing 1 by screws in the traveling direction of light.
The polarization angle of the polarizer 10 is 55-57 degrees; the polarization angle of the polarizer 10 is optimally 56 degrees at the end.
The integrated electro-optic Q-switch of the invention adopts the electro-optic effect to realize Q-switching operation, and when the integrated electro-optic Q-switch is used, the Q-switching function is realized by means of pressurization and depressurization of the voltage regulating circuit, namely, the positive electrode 3 and the negative electrode 4 are connected with electricity, so that the potential energy between the positive electrode 3 and the negative electrode 4 of the electro-optic crystal 2 is changed, the refractive index of the electro-optic crystal 2 is changed, the polarization direction of incident light is further adjusted, and the Q-switch is opened, thereby forming laser oscillation.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and fall within the scope of the invention.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (8)
1. An integrated electro-optic Q-switch, characterized in that: the electro-optical crystal is arranged in the shell, a positive conducting electrode and a negative conducting electrode are connected to the electro-optical crystal, and a positive wire connecting hole and a negative wire connecting hole are respectively formed at the positions, corresponding to the positive conducting electrode and the negative conducting electrode, of the side part of the shell; a wave plate adjusting mechanism is arranged in the shell at the rear side of the electro-optic crystal along the light advancing direction, a 1/4 wave plate is movably arranged in the wave plate adjusting mechanism, and a wave plate adjusting hole is arranged at the side part of the shell corresponding to the 1/4 wave plate; a polaroid is arranged in the shell at the rear side of the wave plate adjusting mechanism along the advancing direction of light through the polarization placing mechanism;
the wave plate adjusting mechanism comprises a sleeve seat with two stages of stepped holes inside, wherein the two stages of stepped holes of the sleeve seat are sequentially a second stage stepped hole and a first stage stepped hole along the light proceeding direction, and a first compression ring and a 1/4 wave plate are sequentially arranged in the second stage stepped hole of the sleeve seat along the light proceeding direction;
the polarization placing mechanism comprises two clamping mechanisms which clamp two sides of the polaroid respectively, the clamping mechanisms comprise U-shaped clamping grooves and connecting columns which are integrally connected to the back sides of the U-shaped clamping grooves, mounting holes which penetrate through the connecting columns and the U-shaped clamping grooves are formed in the positions of the axes of the connecting columns, mounting bolts connected with the shell are assembled in the mounting holes, the tail ends of the mounting bolts are abutted against the sides of the polaroid in the U-shaped clamping grooves, and when the polarization angle of the polaroid changes, the rotation of the mounting bolts can help to adjust the alignment of the polaroid.
2. An integrated electro-optic Q-switch according to claim 1, wherein: the electro-optic crystal is arranged in the shell through O-shaped rings arranged at two ends of the electro-optic crystal, and a jackscrew which is in contact with the electro-optic crystal is arranged at the side part of the shell.
3. An integrated electro-optic Q-switch according to claim 1, wherein: a third-stage stepped hole is arranged in the sleeve seat between the second-stage stepped hole and the O-shaped ring, and a second pressing ring and a glass window are sequentially arranged in the third-stage stepped hole along the advancing direction of light.
4. An integrated electro-optic Q-switch according to claim 1, wherein: the sleeve seat is connected in the shell through threads, a jackscrew which is abutted against the sleeve seat is arranged on the side wall of the shell, and an assembly groove is formed in the tail end of the sleeve seat along the advancing direction of light.
5. An integrated electro-optic Q-switch according to claim 1, wherein: a moisture-proof glass window is provided in the housing at the front side of the electro-optic crystal in the direction of travel of the light.
6. An integrated electro-optic Q-switch according to claim 1, wherein: an end cover groove is arranged at the front end part of the shell along the advancing direction of light, and a front transparent end cover is assembled in the end cover groove through a screw.
7. An integrated electro-optic Q-switch according to claim 1, wherein: a rear transparent end cap is fitted with screws at the rear end of the housing in the direction of travel of the light.
8. An integrated electro-optic Q-switch according to claim 1, wherein: the polarization angle of the polaroid is 55-57 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069740.6A CN106654845B (en) | 2016-11-28 | 2016-11-28 | Integrated electro-optic Q-switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069740.6A CN106654845B (en) | 2016-11-28 | 2016-11-28 | Integrated electro-optic Q-switch |
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| Publication Number | Publication Date |
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| CN106654845A CN106654845A (en) | 2017-05-10 |
| CN106654845B true CN106654845B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611069740.6A Active CN106654845B (en) | 2016-11-28 | 2016-11-28 | Integrated electro-optic Q-switch |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927042Y (en) * | 2006-06-08 | 2007-07-25 | 湖北众友科技实业股份有限公司 | Electro-optic modulating experimental equipment |
| CN101702488A (en) * | 2009-10-28 | 2010-05-05 | 中国科学院上海光学精密机械研究所 | Color tuned laser |
| CN104330243A (en) * | 2014-11-14 | 2015-02-04 | 中国人民解放军海军工程大学 | Laser device Q switch performance test method and device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080721U (en) * | 1990-11-21 | 1991-07-10 | 青岛化工学院 | Electro-optical q switch with polarizer |
| CN201417350Y (en) * | 2008-12-17 | 2010-03-03 | 福建福晶科技股份有限公司 | Electro-optical switch with adjustable optical window sheets |
| CN202330930U (en) * | 2011-11-15 | 2012-07-11 | 上海镭立激光科技有限公司 | Packaging structure for electro-optical crystal switch |
| RU130094U1 (en) * | 2013-02-21 | 2013-07-10 | Федеральное государственное бюджетное учреждение науки Институт солнечно-земной физики Сибирского отделения Российской академии наук (ИСЗФ СО РАН) | ELECTRO-OPTICAL MODULATOR OF POLARIZED RADIATION |
| CN204666993U (en) * | 2015-04-27 | 2015-09-23 | 光越科技(深圳)有限公司 | The online electro-optic Q switch of a kind of low-voltage pressor reflex formula optical fiber |
| CN204740410U (en) * | 2015-05-22 | 2015-11-04 | 江苏中科大港激光科技有限公司 | Lightning Q -switch and Q laser instrument is transferred to lightning of using thereof |
| CN106067655A (en) * | 2016-07-28 | 2016-11-02 | 福建福晶科技股份有限公司 | A kind of with electric-optically Q-switched optoisolator |
| CN206349625U (en) * | 2016-11-28 | 2017-07-21 | 济南晶众光电科技有限公司 | A kind of integrated form electro-optic Q switch |
-
2016
- 2016-11-28 CN CN201611069740.6A patent/CN106654845B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927042Y (en) * | 2006-06-08 | 2007-07-25 | 湖北众友科技实业股份有限公司 | Electro-optic modulating experimental equipment |
| CN101702488A (en) * | 2009-10-28 | 2010-05-05 | 中国科学院上海光学精密机械研究所 | Color tuned laser |
| CN104330243A (en) * | 2014-11-14 | 2015-02-04 | 中国人民解放军海军工程大学 | Laser device Q switch performance test method and device |
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| CN106654845A (en) | 2017-05-10 |
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