CN112054377A - Electro-optical modulation device and laser resonant cavity - Google Patents
Electro-optical modulation device and laser resonant cavity Download PDFInfo
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- CN112054377A CN112054377A CN202010966011.0A CN202010966011A CN112054377A CN 112054377 A CN112054377 A CN 112054377A CN 202010966011 A CN202010966011 A CN 202010966011A CN 112054377 A CN112054377 A CN 112054377A
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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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/107—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
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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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses an electro-optical modulation device and a laser resonant cavity, wherein the electro-optical modulation device is used for the laser resonant cavity and comprises: a crystal mounting box; a nonlinear crystal positioned within the crystal mounting box; the temperature control assembly is positioned in the crystal mounting box and is used for adjusting the temperature of the nonlinear crystal; the adjusting frame, the crystal mounting box sets up on the adjusting frame, the adjusting frame is used for adjusting the spatial position of crystal mounting box. By applying the technical scheme provided by the invention and utilizing the idea of intra-cavity modulation, the laser can be rapidly modulated, and the stable operation of the laser is ensured.
Description
Technical Field
The invention relates to the technical field of laser, in particular to an electro-optical tuning device and a laser resonant cavity.
Background
Electro-optical modulation is one of the important methods of the current laser modulation technology, and is widely applied to laser frequency stabilization and control and spectrum detection.
At present, the main idea of laser modulation is to derive signal light in a laser cavity, modulate the derived laser light, and compare the derived laser light with an external reference optical cavity, and compensate the change of the optical cavity mode frequency of the laser by modulating the optical cavity length of the laser cavity. However, the method needs to add an additional tuning element, increases the system cost, loads the modulation signal on the cavity mirror of the laser optical cavity, is limited by the bandwidth, cannot realize rapid compensation, and is difficult to ensure the stable operation of the laser.
Disclosure of Invention
In view of this, the present application provides an electro-optical modulation device and a laser resonant cavity, which can realize fast modulation of laser and ensure stable operation of laser by using the idea of intra-cavity modulation.
In order to achieve the above purpose, the invention provides the following technical scheme:
an electro-optic modulation device for a laser resonator, the electro-optic modulation device comprising:
a crystal mounting box;
a nonlinear crystal positioned within the crystal mounting box;
the temperature control assembly is positioned in the crystal mounting box and is used for adjusting the temperature of the nonlinear crystal;
the adjusting frame, the crystal mounting box sets up on the adjusting frame, the adjusting frame is used for adjusting the spatial position of crystal mounting box.
Preferably, in the above electro-optical modulation device, the nonlinear crystal is a magnesium oxide-doped lithium niobate crystal;
the nonlinear crystal is provided with a first end and a second end which are opposite to each other, and a third end and a fourth end which are opposite to each other, wherein the first end and the second end are used for light passing, the first end and the second end are both provided with antireflection films, the third end and the fourth end are used for electrifying, and the third end and the fourth end are both plated with conductive films.
Preferably, in the electro-optical modulation device described above, the crystal mounting case is a metal case.
Preferably, in above-mentioned electro-optical modulation device, the temperature control subassembly is connected nonlinear crystal temperature control circuit, nonlinear crystal temperature control circuit passes through the temperature control subassembly control the fluctuation range of nonlinear crystal is less than 10 mK.
Preferably, in the electro-optical modulation device described above, the temperature control unit includes a temperature sensor and a heater provided on the crystal mounting case.
Preferably, in the electro-optical modulation device described above, a mounting stress of the crystal mounting case to the nonlinear crystal is less than 0.1 newton per square millimeter.
Preferably, in the above electro-optical modulation device, the adjusting frame has a first moving mechanism for driving the crystal mounting box to perform three-dimensional translation and a second moving mechanism for driving the crystal mounting box to perform three-dimensional rotation.
The present invention also provides a laser resonator, comprising:
a laser gain medium and an electro-optic modulation device as claimed in any one of the preceding claims.
Preferably, in the above laser resonator, the laser gain medium is a titanium sapphire or a nonlinear crystal or a semiconductor gain medium.
According to the electro-optical modulation device and the laser resonant cavity provided by the technical scheme of the invention, the electro-optical modulation device is added into the laser resonant cavity by utilizing the idea of intra-cavity modulation, so that the phase and the frequency of laser can be rapidly modulated, and the stable operation of the laser is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention.
Fig. 1 is a schematic structural diagram of an electro-optical modulation device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a nonlinear crystal according to an embodiment of the present invention;
fig. 3 is a top view of a laser resonator according to an embodiment of the present invention.
Detailed Description
The embodiments of the present application will be described in detail and fully with reference to the accompanying drawings, wherein the description is only for the purpose of illustrating the embodiments of the present application and is not intended to limit the scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The laser modulation technology has wide application prospect. The main idea of the existing laser modulation technology is to derive signal light in a laser cavity, modulate the derived laser light, compare the derived laser light with an external reference optical cavity, and compensate the change of the optical cavity mode frequency of the laser by modulating the optical cavity length of the laser cavity. However, this method has three disadvantages: firstly, a modulation element is additionally added, so that the system cost is increased; secondly, the modulation signal is loaded on a cavity mirror of the laser optical cavity and is limited by bandwidth, so that rapid compensation cannot be realized; thirdly, the modulation signal is loaded on the laser cavity length, and the stable operation of the laser is difficult to ensure.
The laser frequency modulation and tuning of the currently mainstream commercial solid-state laser all adopt a method for modulating the length of a laser optical cavity, and the laser frequency modulation and tuning device has the advantages of small modulation bandwidth, low modulation speed and easy interference from external noise.
Electro-optical modulation is one of the important methods of the current laser modulation technology, and is widely applied to laser frequency stabilization and control and spectrum detection. In current electro-optic modulation applications, there are major problems including: large insertion loss, high half-wave voltage, unstable refractive index of the electro-optical crystal, and the like.
Therefore, in order to solve the above problems, the present invention provides an electro-optical modulation device and a laser resonator, wherein the electro-optical modulation device is used for the laser resonator, and the electro-optical modulation device comprises:
a crystal mounting box;
a nonlinear crystal positioned within the crystal mounting box;
the temperature control assembly is positioned in the crystal mounting box and is used for adjusting the temperature of the nonlinear crystal;
the adjusting frame, the crystal mounting box sets up on the adjusting frame, the adjusting frame is used for adjusting the spatial position of crystal mounting box.
As can be seen from the above description, in the electro-optical modulation device and the laser resonant cavity provided in the technical scheme of the present invention, the electro-optical modulation device is added to the laser resonant cavity by utilizing the idea of intra-cavity modulation, so that the phase and frequency of the laser can be rapidly modulated, and the stable operation of the laser can be ensured.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an electro-optical modulation device according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a nonlinear crystal according to an embodiment of the present invention.
As shown in fig. 1, the electro-optical modulation device is used for a laser resonator, and the electro-optical modulation device includes:
a crystal mounting case 11; the crystal mounting box may be a metal box.
A nonlinear crystal (not shown in fig. 1) located within the crystal mounting box 11; wherein, the nonlinear crystal can be magnesium oxide doped lithium niobate crystal.
A temperature control assembly located within the crystal mounting box 11 for adjusting the temperature of the nonlinear crystal; wherein the temperature control assembly comprises a temperature sensor and a warmer which are positioned on the crystal mounting box 11.
The adjusting frame 12, the crystal installation box 11 is arranged on the adjusting frame 12, and the adjusting frame 12 is used for adjusting the spatial position of the crystal installation box 11.
In the embodiment of the invention, by utilizing the idea of intracavity modulation, the electro-optical modulation device is added into the laser resonant cavity, the specially designed nonlinear crystal is added into the laser resonant cavity, the rapid modulation of the phase and the frequency of the laser can be realized, the voltage of the half-wave modulated in the cavity is small, the electro-optical modulation device is introduced into the laser resonant cavity, and the laser has the advantages of stable refractive index, low half-wave voltage, small insertion loss and the like, and the laser added with the electro-optical modulation device can stably run. The method has wide application value in the fields of laser modulation, laser frequency control, laser spectrum detection and the like.
As shown in fig. 2, the nonlinear crystal has a first end 21 and a second end 22 opposite to each other, and a third end 23 and a fourth end 24 opposite to each other, the first end 21 and the second end 22 are used for passing light, the first end 21 and the second end 22 are both provided with an antireflection film, the third end 23 and the fourth end 24 are used for conducting electricity, and the third end 23 and the fourth end 24 are both plated with conductive films.
The nonlinear crystal is a polyhedron, wherein two opposite surfaces are a first end 21 and a second end 22 which serve as light-passing ends, and the other two opposite surfaces are a third end 23 and a fourth end 24 which serve as power-passing ends. The nonlinear crystal may be arranged as a cube.
In the embodiment of the invention, the nonlinear crystal can be a magnesium oxide doped lithium niobate crystal, the crystal is a light-transmitting end coated nonlinear crystal, and the film layer is an antireflection film for laser. In other modes, the crystal can also be a nonlinear crystal of a film plated at the electrifying end, and the film layer at the electrifying end has good electric conductivity and preferable characteristics and length, so that the wide-range modulation of the cavity mode frequency can be realized.
The nonlinear crystal of the invention can realize smaller insertion loss of laser power in a laser resonant cavity by selecting the length and the coating characteristics, and is beneficial to the stable operation of laser.
In an embodiment of the present invention, the temperature control assembly includes a temperature sensor and a heater on the crystal mounting case 11. The mounting stress of the crystal mounting box 11 to the nonlinear crystal is small, and a typical stress value is less than 0.1 newton per square millimeter. The crystal mounting box 11 is a metal box with good thermal conductivity, so that the temperature control unit can be mounted on the outer surface of the crystal mounting box 11.
The crystal mounting box 11 provided by the invention has small mounting stress, realizes that the stability of the refractive index of the nonlinear crystal in the laser cavity is better than 0.1%, and is beneficial to the stable operation of a laser.
Furthermore, the temperature control assembly is connected with the nonlinear crystal temperature control circuit, and the nonlinear crystal temperature control circuit controls the fluctuation range of the nonlinear crystal to be less than 10mK through the temperature control assembly, so that the temperature of the nonlinear crystal can be accurately controlled.
In the embodiment of the present invention, the adjusting frame 12 has a first moving mechanism for driving the crystal mounting box 11 to perform three-dimensional translation and a second moving mechanism for driving the crystal mounting box 11 to perform three-dimensional rotation, so that six-dimensional position adjustment of the nonlinear crystal in three-dimensional parallel and three-dimensional rotation can be realized.
The material, coating and size selection of the nonlinear crystal of the electro-optical modulation device can be adjusted based on requirements, the installation mode of the nonlinear crystal can be adjusted based on requirements, the temperature control method of the nonlinear crystal can be adjusted based on requirements, and the multi-dimensional adjustment mode of the nonlinear crystal can be adjusted based on requirements, and is not limited to the modes described in the practical specification and the attached drawings of the invention.
As can be seen from the above description, in the electro-optical modulation device provided in the technical scheme of the present invention, by using the idea of intra-cavity modulation and adding the electro-optical modulation device to the laser resonant cavity, the phase and frequency of the laser can be rapidly modulated, and the stable operation of the laser can be ensured.
The electro-optical modulation device for intra-cavity modulation adopted by the invention can realize an electro-optical modulation device in a laser cavity with any wavelength by the thought and the technology, and is suitable for pulse type and continuous type laser systems.
Based on the above embodiments, another embodiment of the present invention further provides a laser resonator, and referring to fig. 3, fig. 3 is a top view of a laser resonator provided in an embodiment of the present invention.
As shown in fig. 3, the laser resonator includes: a laser gain medium 32 and an electro-optical modulation device 35 as described in the above embodiments. The laser gain medium 32 may be a titanium sapphire or a nonlinear crystal or a semiconductor gain medium. The laser resonator comprises: and the annular laser cavity mirror is used for realizing stable resonance amplification of the laser in the cavity. The mode shown in fig. 3 is described by taking a ring laser cavity mirror as an example, and it should be noted that the number and arrangement of the cavity mirrors in the laser may be set based on requirements and is not limited to the arrangement of the 4 cavity mirrors shown in fig. 3.
The medium refractive index stable, low insertion loss, low half-wave voltage intra-laser cavity electro-optical modulation device 35 described in the above embodiments is used. Its function is to phase and frequency modulate the laser light without any effect on the stable operation of the laser cavity. The modulated output light comprises a modulation signal. The light-transmitting end face of the nonlinear crystal of the electro-optical modulation device 35 may be provided with a preset cut angle, so that laser in the cavity is incident on the nonlinear crystal at the brewster angle, and higher transmittance of the laser is achieved. The nonlinear crystal may have a material with a larger nonlinear coefficient. The function of the laser cavity electro-optical modulation device is to enable the laser cavity electro-optical modulation device to have higher modulation efficiency.
As shown in fig. 3, the laser resonator has four cavity mirrors; the four cavity mirrors are a first cavity mirror 31, a second cavity mirror 33, a third cavity mirror 34 and a fourth cavity mirror 36 in sequence; the laser gain medium 32 is located between the light propagation paths of the first cavity mirror 31 and the second cavity mirror 33; an electro-optical modulation device 35 is located between the light propagation paths of the third 34 and fourth 36 cavity mirrors. The laser intra-cavity light can propagate between the first cavity mirror 31 and the second cavity mirror 33, between the first cavity mirror 31 and the third cavity mirror 34, between the second cavity mirror 33 and the fourth cavity mirror 36, and between the third cavity mirror 34 and the fourth cavity mirror 36.
The laser gain medium 32 is capable of generating spontaneous emission and stimulated emission light.
The light-passing surface of the nonlinear crystal can adopt a proper cut angle, so that laser in the cavity is incident on the crystal at the Brewster angle, the higher transmittance of the laser is realized, the material of the nonlinear crystal can have a larger nonlinear coefficient, and the electro-optical modulation device in the laser resonant cavity has higher modulation efficiency.
It should be noted that the number of the cavity mirrors in the laser resonator can be set based on the requirement, and is not limited to four cavity mirrors in the present application.
In an implementation manner in the embodiment of the present invention, pump light enters the nonlinear crystal through the first cavity mirror 31 to generate idler frequency light and signal light, after the signal light is subjected to resonance amplification in the laser resonant cavity, part of the signal light is led out from the third cavity mirror 34, the idler frequency light is led out from the second cavity mirror 33, enters the optical frequency reference, a control signal is generated, and the control signal is loaded on the electro-optical modulation device 35, so that fast and efficient compensation on the frequency of the signal light can be realized, control on the frequency of the idler frequency can be realized, and narrow linewidth output can be realized.
In the embodiment of the present invention, the electro-optical modulation device 35 is inserted into the optical resonant cavity to perform fast and efficient feedback control, and the concept of intra-cavity compensation is utilized to achieve fast locking of the signal light and the optical frequency reference 37, and a control signal generated by the optical frequency reference 37 is loaded on the electro-optical modulation device 35, so that the compensation bandwidth is greatly increased, the frequency noise of the signal light and the line width of the signal light are greatly reduced, and thus the line width of the signal light and the line width of the idler frequency light are effectively narrowed, and narrow line width output is achieved.
As can be seen from the above description, in the laser resonant cavity provided in the technical scheme of the present invention, by using the idea of intra-cavity modulation and adding the electro-optical modulation device to the laser resonant cavity, the phase and frequency of the laser can be rapidly modulated, and the stable operation of the laser can be ensured.
The embodiments in the present description are described in a progressive manner, or in a parallel manner, or in a combination of a progressive manner and a parallel manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments can be referred to each other. The laser resonator disclosed by the embodiment corresponds to the electro-optical modulation device disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the partial description of the electro-optical modulation device.
It should be noted that in the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An electro-optic modulation device for a laser resonator, the electro-optic modulation device comprising:
a crystal mounting box;
a nonlinear crystal positioned within the crystal mounting box;
the temperature control assembly is positioned in the crystal mounting box and is used for adjusting the temperature of the nonlinear crystal;
the adjusting frame, the crystal mounting box sets up on the adjusting frame, the adjusting frame is used for adjusting the spatial position of crystal mounting box.
2. The electro-optic modulation device of claim 1 wherein the nonlinear crystal is a magnesium oxide doped lithium niobate crystal;
the nonlinear crystal is provided with a first end and a second end which are opposite to each other, and a third end and a fourth end which are opposite to each other, wherein the first end and the second end are used for light passing, the first end and the second end are both provided with antireflection films, the third end and the fourth end are used for electrifying, and the third end and the fourth end are both plated with conductive films.
3. The electro-optic modulation device of claim 1 wherein the crystal mounting box is a metal box.
4. The electro-optic modulation device according to claim 1, wherein the temperature control component is connected to a nonlinear crystal temperature control circuit, and the nonlinear crystal temperature control circuit controls the fluctuation amplitude of the nonlinear crystal to be less than 10mK through the temperature control component.
5. The electro-optic modulation device of claim 1 wherein the temperature control assembly comprises a temperature sensor and a warmer located on the crystal mounting box.
6. The electro-optic modulation device of claim 1 wherein the crystal mounting box has a mounting stress on the nonlinear crystal of less than 0.1 newtons per square millimeter.
7. The electro-optic modulation device according to claim 1, wherein the adjusting bracket has a first moving mechanism for driving the crystal mounting box to perform three-dimensional translation and a second moving mechanism for driving the crystal mounting box to perform three-dimensional rotation.
8. A laser resonator, comprising:
a laser gain medium and an electro-optical modulation device according to any of claims 1-7.
9. The laser resonator of claim 8, wherein the laser gain medium is a titanium sapphire or a nonlinear crystal or a semiconductor gain medium.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010966011.0A CN112054377A (en) | 2020-09-15 | 2020-09-15 | Electro-optical modulation device and laser resonant cavity |
| PCT/CN2021/085867 WO2022057241A1 (en) | 2020-09-15 | 2021-04-08 | Electro-optical modulation apparatus and laser resonant cavity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010966011.0A CN112054377A (en) | 2020-09-15 | 2020-09-15 | Electro-optical modulation device and laser resonant cavity |
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| CN112054377A true CN112054377A (en) | 2020-12-08 |
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| CN202010966011.0A Pending CN112054377A (en) | 2020-09-15 | 2020-09-15 | Electro-optical modulation device and laser resonant cavity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022057241A1 (en) * | 2020-09-15 | 2022-03-24 | 中国科学技术大学 | Electro-optical modulation apparatus and laser resonant cavity |
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| CN101222108A (en) * | 2007-12-19 | 2008-07-16 | 中国科学院长春光学精密机械与物理研究所 | Temperature regulation method of doubling frequency crystal in optical resonant cavity |
| US9219343B1 (en) * | 2014-10-22 | 2015-12-22 | Gooch And Housego Plc | Crystal capture housing with non-contact fluid cooling |
| CN105470801A (en) * | 2015-12-08 | 2016-04-06 | 中国航空工业集团公司洛阳电光设备研究所 | KDP Q-modulation switch |
| CN109361147A (en) * | 2018-11-09 | 2019-02-19 | 山东大学 | A kind of methods and applications of lateral electro-optic Q switch and its reduction driving voltage based on trigonal system |
| CN209200367U (en) * | 2019-01-10 | 2019-08-02 | 西安文理学院 | One kind being based on MgO:LN crystal electro-optical cavity dumping complete solid state pulse laser |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05235456A (en) * | 1992-02-24 | 1993-09-10 | Sumitomo Metal Mining Co Ltd | Laser apparatus |
| CN103701013A (en) * | 2013-12-16 | 2014-04-02 | 北京工业大学 | Integral positioning device for multi-device solid laser resonant cavity |
| CN112054377A (en) * | 2020-09-15 | 2020-12-08 | 中国科学技术大学 | Electro-optical modulation device and laser resonant cavity |
-
2020
- 2020-09-15 CN CN202010966011.0A patent/CN112054377A/en active Pending
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2021
- 2021-04-08 WO PCT/CN2021/085867 patent/WO2022057241A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222108A (en) * | 2007-12-19 | 2008-07-16 | 中国科学院长春光学精密机械与物理研究所 | Temperature regulation method of doubling frequency crystal in optical resonant cavity |
| US9219343B1 (en) * | 2014-10-22 | 2015-12-22 | Gooch And Housego Plc | Crystal capture housing with non-contact fluid cooling |
| CN105470801A (en) * | 2015-12-08 | 2016-04-06 | 中国航空工业集团公司洛阳电光设备研究所 | KDP Q-modulation switch |
| CN109361147A (en) * | 2018-11-09 | 2019-02-19 | 山东大学 | A kind of methods and applications of lateral electro-optic Q switch and its reduction driving voltage based on trigonal system |
| CN209200367U (en) * | 2019-01-10 | 2019-08-02 | 西安文理学院 | One kind being based on MgO:LN crystal electro-optical cavity dumping complete solid state pulse laser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022057241A1 (en) * | 2020-09-15 | 2022-03-24 | 中国科学技术大学 | Electro-optical modulation apparatus and laser resonant cavity |
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