CN102891422A - Nonlinear crystal temperature control device - Google Patents
Nonlinear crystal temperature control device Download PDFInfo
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- CN102891422A CN102891422A CN2011104361880A CN201110436188A CN102891422A CN 102891422 A CN102891422 A CN 102891422A CN 2011104361880 A CN2011104361880 A CN 2011104361880A CN 201110436188 A CN201110436188 A CN 201110436188A CN 102891422 A CN102891422 A CN 102891422A
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- nonlinear crystal
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Abstract
The invention discloses a nonlinear crystal temperature control device and relates to the technical field of solid laser. The nonlinear crystal temperature control device comprises a heat sink, a thermal electric cooler (TEC), a nonlinear crystal base and a nonlinear crystal clamping piece, wherein the TEC is positioned between the heat sink and the nonlinear crystal base; and the nonlinear crystal clamping piece is arranged on the nonlinear crystal base and matched with the nonlinear crystal base to clamp a nonlinear crystal. The nonlinear crystal temperature control device can accurately control the heating temperature of the nonlinear crystal.
Description
Technical field
The present invention relates to the Solid State Laser technical field, particularly a kind of temperature control device for non-linear crystal.
Background technology
Solid State Laser has been brought into play more and more important effect in fields such as industrial processes, communication, remote sensings.At present, developing the most ripe is that output wavelength is the solid state laser about 1 μ m, and its gain medium comprises Nd:YAG, Yb:YAG, Nd:YVO4, Nd:YLF and neodymium glass etc.The demand of using for satisfying laser processing, demonstration and performance etc. need to add two frequency doubling systems usually in laser, obtain the green glow output about 0.5 μ m, also can further add frequency tripling, quadruple system etc. and obtain ultraviolet and deep ultraviolet output.For obtaining more long wavelength's Laser output, can add the optical parametric oscillation system.Frequency doubling system and optical parametric oscillation system all are the Laser-Nonlinear frequency translation systems that commonly uses.
Laser-Nonlinear frequency translation system is comprised of nonlinear crystal, temperature control structure and temperature-control circuit usually.In order to obtain stable and efficiently Laser-Nonlinear frequency translation output, generally the temperature with nonlinear crystal is controlled on the some temperature spots that are higher than the laser cavity temperature.As: it is 150 degree that the typical case of two frequency multiplication lbo crystals controls temperature, and it is 60 degree that the typical case of sum of fundamental frequencies (frequency tripling) lbo crystal controls temperature.Tradition nonlinear crystal temperature control structure adopts the resistance heating rod as thermal source, and its basic temperature control principle is, when detecting crystal temperature effect by thermistor and be lower than set point, then improves the output power of resistance heating rod, improves the nonlinear crystal temperature; When detecting crystal temperature effect and be higher than set point, then reduce the output power of resistance heating rod, by natural heat dissipation the nonlinear crystal temperature is reduced.Because the resistance heating rod can only heat and can not freeze, although its temperature-rise period can be very fast, temperature-fall period is generally slower, so that the temperature tracking velocity is slow, in the situation that variations in temperature is difficult to obtain higher temperature control precision.
Summary of the invention
The technical problem that (one) will solve
The technical problem to be solved in the present invention is: how accurately to control the temperature to the nonlinear crystal heating.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of temperature control device for non-linear crystal, comprise: heat sink, semiconductor cooler TEC, nonlinear crystal pedestal, nonlinear crystal holder, described TEC is between heat sink and described nonlinear crystal pedestal, described nonlinear crystal holder is installed on the described nonlinear crystal pedestal, is used for cooperating with the clamping nonlinear crystal with described nonlinear crystal pedestal.
Wherein, upper at least one thermistor installing hole that also is provided with of described nonlinear crystal pedestal.
Wherein, described nonlinear crystal pedestal comprises: base and be formed at placement section that be used for to place nonlinear crystal on the base, described floor installation described heat sink on, described placement section is L-type, described thermistor mounting hole site is on described placement section.
Wherein, described nonlinear crystal holder becomes L-type.
Wherein, described TEC is installed in the described heat sink mounting groove, and guarantees that described TEC contacts with described nonlinear crystal pedestal.
Wherein, the material of described heat sink, nonlinear crystal pedestal, nonlinear crystal holder is any in aluminium, copper, iron, aluminium alloy, copper alloy, ferroalloy, the pottery.
Wherein, also comprise insulation cladding, described insulation cladding covers on the described nonlinear crystal pedestal.
Wherein, described insulation cladding is provided with light hole.
Wherein, the material of described insulation cladding is polytetrafluoroethylene.
(3) beneficial effect
The present invention is by adopting semiconductor cooler (thermal electric cooler, TEC), and the function of utilizing nonlinear crystal can heat and can freeze has realized the accurate control to the nonlinear crystal heating-up temperature.
Description of drawings
Fig. 1 is the heat sink and TEC scheme of installation of a kind of temperature control device for non-linear crystal of the embodiment of the invention;
Fig. 2 is nonlinear crystal and the nonlinear crystal pedestal scheme of installation of a kind of temperature control device for non-linear crystal of the embodiment of the invention;
Fig. 3 is the nonlinear crystal base construction schematic diagram (end view) of a kind of temperature control device for non-linear crystal of the embodiment of the invention;
Fig. 4 is the nonlinear crystal holder structural representation of a kind of temperature control device for non-linear crystal of the embodiment of the invention;
Fig. 5 is the structural representation of a kind of temperature control device for non-linear crystal of the embodiment of the invention;
Fig. 6 is the structural representation that the temperature control device for non-linear crystal among Fig. 5 is loaded onto insulation cladding.
Description of reference numerals:
1-is heat sink, 2-TEC, the 3-TEC mounting groove, installation screwed hole on 4-is heat sink, the 5-TEC electrode, the first installing hole on the 6-nonlinear crystal pedestal, 7-nonlinear crystal pedestal, the 8-nonlinear crystal, the 9-indium foil, the installation screwed hole on the 10-nonlinear crystal pedestal, the second installing hole on the 11-nonlinear crystal pedestal, 12-thermistor installing hole, 13-nonlinear crystal holder, the installing hole on the 14-nonlinear crystal holder, the installation screwed hole on the 15-nonlinear crystal holder, the 16-insulation cladding, the light hole on the 17-insulation cladding.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, for heat sink 1 with TEC 2 scheme of installations, TEC mounting groove 3 is arranged on heat sink 1 and is used for installing the installation screwed hole 4 of nonlinear crystal pedestal 7.TEC 2 is installed in the TEC mounting groove 3, and two wires 5 are protruding to connect power supply along TEC mounting groove 3.
Shown in Fig. 2,3,4 and 5, be the scheme of installation of nonlinear crystal 8 and nonlinear crystal pedestal 7.In the present embodiment, nonlinear crystal pedestal 7 is divided into two parts: base 71 and be used for to place the placement section 72 of nonlinear crystal 8.Base 71 is installed on heat sink 1 by the installation screwed hole 4 on the first installing hole 6 and heat sink 1, and presses TEC 2.Placement section 72 is positioned at base 71 tops.The side of nonlinear crystal 8 is wrapped with indium foil 9, and nonlinear crystal 8 is placed on the placement section 72.Fig. 3 is nonlinear crystal pedestal 7 structural representations (side-looking), and thermistor installing hole 12 is arranged on the nonlinear crystal pedestal 7.Fig. 4 is nonlinear crystal holder structural representation, installing hole 14 is arranged on the nonlinear crystal holder 13 and screwed hole 15 is installed.In the present embodiment, placement section 72 and nonlinear crystal holder 13 are L-type, and placement section 72 is L-type, make things convenient for putting into and taking out of nonlinear crystal 8, and cooperatively interacting with the nonlinear crystal holder 13 of L-type to clamp nonlinear crystal 8.Concrete screwed hole 15 by the second installing hole 11 on the placement section 72 and nonlinear crystal holder 13 cooperates, installing hole 14 on the nonlinear crystal holder 13 and 10 cooperations of the screwed hole on the placement section 72 are installed to nonlinear crystal holder 13 on the nonlinear crystal pedestal 7, and chucking nonlinear crystal 8.Fig. 5 is the schematic diagram that installs nonlinear crystal holder 13 and tighten nonlinear crystal 8.
The temperature control device for non-linear crystal of the present embodiment also comprises insulation cladding 16, schematic diagram behind the installation insulation cladding 16 as shown in Figure 6, insulation cladding 16 covers on the base 71 of nonlinear crystal pedestal 7, makes placement section 72, nonlinear crystal 8, nonlinear crystal holder 13 be positioned at insulation cladding 16, also be provided with light hole 17 on the insulation cladding 16, make laser by shining on the nonlinear crystal 8.
Be installed in TEC 2 in heat sink 1 under the driving of external power supply control, by close contact, reach the target control temperature so that be installed in the nonlinear crystal 8 of nonlinear crystal pedestal 7 the insides.Owing to having adopted TEC 2, can accurately control the temperature to the nonlinear crystal heating.Insulation cladding 16 can reduce the heat exchange of nonlinear crystal pedestal 7 and nonlinear crystal 8 and outside air, plays insulation effect.
In the present embodiment, the material of heat sink 1, nonlinear crystal pedestal 7, nonlinear crystal holder 13 is any in aluminium, copper, iron, aluminium alloy, copper alloy, ferroalloy, the pottery.The material of described nonlinear crystal 8 is any among KDP, KD*P, CD*A, ADP, KTP, KTA, LBO, CLBO, BBO, the LiNbO3.The material of described insulation cladding 16 is polytetrafluoroethylene.
Above execution mode only is used for explanation the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; in the situation that do not break away from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (9)
1. temperature control device for non-linear crystal, it is characterized in that, comprise: heat sink, semiconductor cooler TEC, nonlinear crystal pedestal, nonlinear crystal holder, described TEC is between heat sink and described nonlinear crystal pedestal, described nonlinear crystal holder is installed on the described nonlinear crystal pedestal, is used for cooperating with the clamping nonlinear crystal with described nonlinear crystal pedestal.
2. temperature control device for non-linear crystal as claimed in claim 1 is characterized in that, upper at least one thermistor installing hole that also is provided with of described nonlinear crystal pedestal.
3. temperature control device for non-linear crystal as claimed in claim 2, it is characterized in that, described nonlinear crystal pedestal comprises: base and the placement section that is used for placing nonlinear crystal that is formed on the base, described floor installation described heat sink on, described placement section is L-type, and described thermistor mounting hole site is on described placement section.
4. temperature control device for non-linear crystal as claimed in claim 3 is characterized in that, described nonlinear crystal holder becomes L-type.
5. temperature control device for non-linear crystal as claimed in claim 1 is characterized in that, described TEC is installed in the described heat sink mounting groove, and guarantees that described TEC contacts with described nonlinear crystal pedestal.
6. such as each described temperature control device for non-linear crystal in the claim 1～5, it is characterized in that, the material of described heat sink, nonlinear crystal pedestal, nonlinear crystal holder is any in aluminium, copper, iron, aluminium alloy, copper alloy, ferroalloy, the pottery.
7. such as each described temperature control device for non-linear crystal in the claim 1～5, it is characterized in that, also comprise insulation cladding, described insulation cladding covers on the described nonlinear crystal pedestal.
8. temperature control device for non-linear crystal as claimed in claim 7 is characterized in that, described insulation cladding is provided with light hole.
9. temperature control device for non-linear crystal as claimed in claim 7 is characterized in that, the material of described insulation cladding is polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104361880A CN102891422A (en) | 2011-12-22 | 2011-12-22 | Nonlinear crystal temperature control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104361880A CN102891422A (en) | 2011-12-22 | 2011-12-22 | Nonlinear crystal temperature control device |
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| CN102891422A true CN102891422A (en) | 2013-01-23 |
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| CN2011104361880A Pending CN102891422A (en) | 2011-12-22 | 2011-12-22 | Nonlinear crystal temperature control device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466627A (en) * | 2014-12-11 | 2015-03-25 | 中国工程物理研究院应用电子学研究所 | Laser nonlinear crystal flexible temperature controller |
| CN106654815A (en) * | 2016-12-26 | 2017-05-10 | 山东大学 | Package device and method of solid ultraviolet laser |
| CN108493756A (en) * | 2018-02-07 | 2018-09-04 | 杭州电子科技大学 | One kind being based on Nd:YVO4/Nd:GdVO4The two-frequency laser of interwoven crystal |
| CN108963730A (en) * | 2018-07-27 | 2018-12-07 | 台州市天启激光科技有限公司 | A kind of optical fiber ultraviolet laser |
| CN109921271A (en) * | 2017-12-13 | 2019-06-21 | 中国科学院大连化学物理研究所 | A kind of adjustable crystal thermostat of mechanical location |
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| US20040211190A1 (en) * | 2002-09-17 | 2004-10-28 | The Furukawa Electric Co., Ltd. | Temperature adjustment device and laser module |
| CN201071404Y (en) * | 2007-06-21 | 2008-06-11 | 天津市浩波激光电子技术开发有限公司 | High-temperature constant-temperature heating mechanism for nonlinear optical crystal of laser |
| CN201994553U (en) * | 2010-12-13 | 2011-09-28 | 深圳市大族激光科技股份有限公司 | Mounting base and laser using same |
| CN102377094A (en) * | 2010-08-25 | 2012-03-14 | 北京国科世纪激光技术有限公司 | Crystal temperature controlling device and use method thereof |
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2011
- 2011-12-22 CN CN2011104361880A patent/CN102891422A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040211190A1 (en) * | 2002-09-17 | 2004-10-28 | The Furukawa Electric Co., Ltd. | Temperature adjustment device and laser module |
| CN201071404Y (en) * | 2007-06-21 | 2008-06-11 | 天津市浩波激光电子技术开发有限公司 | High-temperature constant-temperature heating mechanism for nonlinear optical crystal of laser |
| CN102377094A (en) * | 2010-08-25 | 2012-03-14 | 北京国科世纪激光技术有限公司 | Crystal temperature controlling device and use method thereof |
| CN201994553U (en) * | 2010-12-13 | 2011-09-28 | 深圳市大族激光科技股份有限公司 | Mounting base and laser using same |
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| 汪礼敏 等: "《铜及铜合金粉末与制品》", 31 December 2010, article "铜基粉末冶金热管理材料", pages: 187-192 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466627A (en) * | 2014-12-11 | 2015-03-25 | 中国工程物理研究院应用电子学研究所 | Laser nonlinear crystal flexible temperature controller |
| CN106654815A (en) * | 2016-12-26 | 2017-05-10 | 山东大学 | Package device and method of solid ultraviolet laser |
| CN109921271A (en) * | 2017-12-13 | 2019-06-21 | 中国科学院大连化学物理研究所 | A kind of adjustable crystal thermostat of mechanical location |
| CN108493756A (en) * | 2018-02-07 | 2018-09-04 | 杭州电子科技大学 | One kind being based on Nd:YVO4/Nd:GdVO4The two-frequency laser of interwoven crystal |
| CN108493756B (en) * | 2018-02-07 | 2020-06-12 | 杭州电子科技大学 | YVO based on Nd4/Nd:GdVO4Double-frequency laser of combined crystal |
| CN108963730A (en) * | 2018-07-27 | 2018-12-07 | 台州市天启激光科技有限公司 | A kind of optical fiber ultraviolet laser |
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