CN201057618Y - Electro-optical Q switch - Google Patents
Electro-optical Q switch Download PDFInfo
- Publication number
- CN201057618Y CN201057618Y CNU2007201758619U CN200720175861U CN201057618Y CN 201057618 Y CN201057618 Y CN 201057618Y CN U2007201758619 U CNU2007201758619 U CN U2007201758619U CN 200720175861 U CN200720175861 U CN 200720175861U CN 201057618 Y CN201057618 Y CN 201057618Y
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- China
- Prior art keywords
- core
- electro
- optical
- core body
- shell
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- Expired - Fee Related
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Abstract
The utility model relates to an electro-optic Q switch, which comprises a cylinder shaped metal shell, either end face of the shell has an end cover, the end cover has an optical window at the center; the shell has a column shaped insulated heat conducting core internally, the insulated heat conducting core comprises a core body and a core cover, the core body is fixedly connected with the core cover by a bolt; the core body has a cavity communicated with the optical window at the center, the cavity is fixedly provided with at least one electro-optic crystal internally, the core body is buried with at least one pair of conductors internally; two insulated heat conducting bases are bolt connected on the shell, an electrode is fixedly provided in the base; one end of the conductor is fixedly connected with the electro-optic crystal through a bolt, whole another end is bolt connected with the electrode. With rapid heat dissipation, the electro-optical Q switch is propitious to the electrostatic export, steady circuit connection, and rapid installation, moreover, no pollution is caused by volatilization of adhesives.
Description
Technical field
The utility model relates to the pulse laser Q-switching device, particularly a kind of electro-optical Q-switch.
Background technology
Electric-optically Q-switched technology is to utilize to apply the refractive index that voltage changes crystal on crystal, thereby reaches the change polarization state of light, uses the effect that can realize optical switch with polarizer.Utilize the pulse laser of electric-optically Q-switched technology, pulse width, peak power height.
In the prior art, electro-optical Q-switch is at high power, and when high repetition frequency used down, crystal heating was bigger, and temperature rises, and causes peak power to reduce, the beam quality variation, and half-wave voltage changes, and excessive temperature rises even can crystal be damaged; Electro-optical Q-switch under high pressure uses usually, can produce static on device, and device and connection instrument are damaged, and also is unfavorable for safe in utilization; The electro-optical Q-switch circuit uses electric wire to connect usually installing device is brought inconvenience, and circuit very easily opens circuit because of external force causes; The electro-optical Q-switch parts connect the employing bonding agent, and the bonding agent volatilization pollutes device.
Summary of the invention
For overcoming the shortcoming of electro-optical Q-switch of the prior art, goal of the invention of the present utility model provides a kind of new type electro Q switching, this electro-optical Q-switch rapid heat dissipation, the static derivation that helps device, the pollution that the circuit connection is firm, quick for installation, adhesive-free volatilizees and causes.
The purpose of this utility model is achieved in that a kind of electro-optical Q-switch, and described electro-optical Q-switch comprises a cylindrical metal shell, and described shell both ends of the surface respectively have an end cap, and described end cap center is provided with optical window; One cylindrical insulating heat-conductive core is arranged in the described shell, and described insulating heat-conductive core comprises core body and core cap, and described core body is connected by screw with core cap; Described core body center has one and the cavity that connects of described optical window, sets firmly at least one block of electrooptic crystal in this cavity, buries at least one pair of conductor in the described core body underground; Two the insulating heat-conductive pedestals that are spirally connected on the described shell are installed with electrode in the described pedestal; One end of described conductor is affixed by screw and described electrooptic crystal, and the other end and electrode are spirally connected.
Set firmly an electrooptic crystal in the described cavity.
Respectively be provided with a keyway vertically on the arc surface of described core cap He on the described outer casing inner wall, described keyway is by the pin key pin joint; Described core body is provided with a guide block, and described outer casing inner wall is along being circumferentially with a guide groove.
The beneficial effect that the utility model produces is:
The rapid heat dissipation of device when 1, the utility model uses under high power, high repetition frequency.
2, the utility model has adopted metal shell, and the static that helps device under high pressure conditions when using is derived.
3, the utility model circuit connects firmly, has overcome circuit and has hindered the problem of installing, easily opening circuit because of external force.
4, metal shell of the present utility model adopts key to be connected with the edge heat conduction core, and is quick for installation.
5, the utility model adhesive-free, the problem that the adhesive-free volatilization pollutes device.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the B-B profile of Fig. 1.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of electro-optical Q-switch, described electro-optical Q-switch comprises a cylindrical metal shell 5, the metal shell both ends of the surface respectively have an end cap 8, the end cap center is provided with optical window 9, end cap 8 and metal shell 5 can be spirally connected in succession or directly by screw, and the structure of end cap and optical window and be connected to prior art repeats no more herein; One cylindrical insulating heat-conductive core is arranged in the metal shell, and described insulating heat-conductive core comprises core body 7 and core cap 12, and described core body is fixedlyed connected by screw 13 with core cap; Described core body center has one and the cavity 11 that connects of described optical window, in the present embodiment, sets firmly an electrooptic crystal 10 in this cavity, buries pair of conductors 6 and conductor 20 in the core body underground; Be spirally connected on the described metal shell insulating heat-conductive pedestal 2 and insulating heat-conductive pedestal 23 are installed with electrode 1 and 22 respectively in the described pedestal; One end of conductor 6 is affixed by screw 15 and described electrooptic crystal, and the other end and electrode 1 are spirally connected, and an end of conductor 20 is affixed by screw 21 and described electrooptic crystal, and the other end and electrode 22 are spirally connected.
In the present embodiment, insulating heat-conductive core body 7, core cap 12, insulating heat-conductive pedestal 2 and insulating heat-conductive pedestal 23 are 95 potteries, have good insulation heat-conducting property, conductor 6 and conductor 20 are low resistivity metal, when making the insulating heat-conductive core body two conductors are embedded in the insulating heat-conductive core body.Electrooptic crystal 10 is an electrooptic crystal that cube shaped two sides are gold-plated, is prior art.Electrooptic crystal 10 is installed in the cavity 11, passes core body 7 by screw 15 and screw 16 electrooptic crystal 10 1 ends are fixed, and passes core body 7 by screw 21 and screw 19 electrooptic crystal 10 other ends are fixed.Electrooptic crystal 10 is a gilding with the stationary plane of screw 15 and screw 21, screw 15 and screw 21 in fixing electrooptic crystal 10 again respectively with the gilding conducting of conductor 6 and conductor 20 and electrooptic crystal 10.The core cap 12 of insulating heat-conductive core is fastened on the core body 7, and two ends are fixing by screw 13, and electrooptic crystal 10 is enclosed in the insulating heat-conductive in-core.
The heat that produces on the electrooptic crystal is sent on the metal shell by the insulating heat-conductive core, then heat is loose in surrounding air.The material of metal shell and insulating heat-conductive core is the excellent heat conductivity material, the overwhelming majority heat that produces on the crystal can be loose in the device outer air, and metal shell makes the static of device generation to derive simultaneously.Insulating heat-conductive core and insulating heat-conductive pedestal have stoped the high-voltage breakdown between electrooptic crystal and electrode and the metal shell.The pre-buried curing of low resistivity metal conductor, be built in the traditional electric wire of replacement in the insulating heat-conductive core, the bonding connected mode of the electric wire of having given up, circuit connects reliable and stable, does not use any bonding agent, do not have the bonding agent volatilization to pollute the problem of device, realized being communicated with of crystal gilding and electrode.
In the present embodiment, with insulating heat-conductive core and metal shell 5 installations and fixing, vertically respectively be provided with a keyway 17 and keyway 18 on the arc surface of described core cap He on the described metal shell inwall for the ease of quickly, described keyway is by pin key 14 pin joints; Described core body is provided with a guide block 4, and described outer casing inner wall is along being circumferentially with a guide groove 3.
The installation of insulating heat-conductive core and metal shell and fixing, adopted the key connected mode, earlier with the keyway 18 on the guide block 4 aligning metal shell inwalls, the insulating heat-conductive core is pushed in the metal shell, the insulating heat-conductive core is rotated in metal shell, make guide block 4, continue rotation edge heat conduction core along guide groove 3 interior slips that the metal shell inwall circumferentially is provided with, keyway 17 on the core cap of insulating heat-conductive core is alignd with keyway 18 on the metal shell inwall, pin key 14 is inserted.Guide block 4 is connected with guide groove 3 keys and keyway 17, keyway 18 and pin key 14 keys are connected, and defines the location of the circumferential and axial of insulating heat-conductive core and metal shell, quick for installation, connect firm.
In order to reduce the influence of half-wave voltage variation to the utility model work effect, insulating heat-conductive in-core of the present utility model can be provided with the polylith electrooptic crystal, with polylith electrooptic crystal sequence arrangement vertically, leave the gap between each electrooptic crystal, and many connecting circuits to as hereinbefore are set.
The utility model is under the situation of room temperature, and laser is output as wavelength 1064nm, pulsewidth 10ns, and 1kHz, continuous operation 8 hours, crystal temperature effect is no more than 34 degrees centigrade, does not detect static on the device.Opening circuit does not appear in device circuitry under strong external force effect, and built-up time has also shortened 50%.There is not the bonding agent volatilization to pollute the problem of device.
Claims (3)
1. electro-optical Q-switch, it is characterized in that: described electro-optical Q-switch comprises a cylindrical metal shell, and described shell both ends of the surface respectively have an end cap, and described end cap center is provided with optical window; One cylindrical insulating heat-conductive core is arranged in the described shell, and described insulating heat-conductive core comprises core body and core cap, and described core body is connected by screw with core cap; Described core body center has one and the cavity that connects of described optical window, sets firmly at least one block of electrooptic crystal in this cavity, buries at least one pair of conductor in the described core body underground; Two the insulating heat-conductive pedestals that are spirally connected on the described shell are installed with electrode in the described pedestal; One end of described conductor is affixed by screw and described electrooptic crystal, and the other end and electrode are spirally connected.
2. electro-optical Q-switch according to claim 1 is characterized in that: set firmly an electrooptic crystal in the described cavity.
3. electro-optical Q-switch according to claim 1 is characterized in that: respectively be provided with a keyway vertically on the arc surface of described core cap He on the described outer casing inner wall, described keyway is by the pin key pin joint; Described core body is provided with a guide block, and described outer casing inner wall is along being circumferentially with a guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201758619U CN201057618Y (en) | 2007-09-13 | 2007-09-13 | Electro-optical Q switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201758619U CN201057618Y (en) | 2007-09-13 | 2007-09-13 | Electro-optical Q switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057618Y true CN201057618Y (en) | 2008-05-07 |
Family
ID=39426458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201758619U Expired - Fee Related CN201057618Y (en) | 2007-09-13 | 2007-09-13 | Electro-optical Q switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057618Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005692A (en) * | 2010-10-22 | 2011-04-06 | 大连淡宁实业发展有限公司 | Electro-optic Q switch |
| CN105680315A (en) * | 2016-04-14 | 2016-06-15 | 北京工业大学 | Method for increasing average output power of electro-optic Q-switched laser |
| CN112290369A (en) * | 2020-12-24 | 2021-01-29 | 武汉奇致激光技术股份有限公司 | Device for adjusting electro-optical Q-switch and optical equipment mounted with the device |
| CN113517157A (en) * | 2021-07-01 | 2021-10-19 | 哈尔滨工程大学 | Thermal switch device applied to regulation and control of heat transmission |
-
2007
- 2007-09-13 CN CNU2007201758619U patent/CN201057618Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005692A (en) * | 2010-10-22 | 2011-04-06 | 大连淡宁实业发展有限公司 | Electro-optic Q switch |
| CN102005692B (en) * | 2010-10-22 | 2012-03-07 | 大连淡宁实业发展有限公司 | Electro-optic Q switch |
| CN105680315A (en) * | 2016-04-14 | 2016-06-15 | 北京工业大学 | Method for increasing average output power of electro-optic Q-switched laser |
| CN112290369A (en) * | 2020-12-24 | 2021-01-29 | 武汉奇致激光技术股份有限公司 | Device for adjusting electro-optical Q-switch and optical equipment mounted with the device |
| CN113517157A (en) * | 2021-07-01 | 2021-10-19 | 哈尔滨工程大学 | Thermal switch device applied to regulation and control of heat transmission |
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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 |
Granted publication date: 20080507 Termination date: 20160913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |