CN101986486B - Optical parametric oscillator for intracavity mode mismatch compensation - Google Patents

Optical parametric oscillator for intracavity mode mismatch compensation Download PDF

Info

Publication number
CN101986486B
CN101986486B CN200910112275.3A CN200910112275A CN101986486B CN 101986486 B CN101986486 B CN 101986486B CN 200910112275 A CN200910112275 A CN 200910112275A CN 101986486 B CN101986486 B CN 101986486B
Authority
CN
China
Prior art keywords
mirror
chamber
optical parametric
cavity mirror
microns
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN200910112275.3A
Other languages
Chinese (zh)
Other versions
CN101986486A (en
Inventor
朱海永
张戈
段延敏
黄呈辉
魏勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Institute of Research on the Structure of Matter of CAS
Original Assignee
Fujian Institute of Research on the Structure of Matter of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujian Institute of Research on the Structure of Matter of CAS filed Critical Fujian Institute of Research on the Structure of Matter of CAS
Priority to CN200910112275.3A priority Critical patent/CN101986486B/en
Publication of CN101986486A publication Critical patent/CN101986486A/en
Application granted granted Critical
Publication of CN101986486B publication Critical patent/CN101986486B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

The invention relates to an optical parametric oscillator for intracavity mode mismatch compensation. A totally reflecting cavity mirror, a laser crystal, an acoustooptical Q switch, a composite cavity mirror, a planar dielectric mirror for absorbing idle light, a nonlinear optical crystal and an output cavity mirror are arranged in an optical path in turn. The optical parametric oscillator is characterized in that: the planar dielectric mirror for absorbing idle light is arranged on the optical path so as to realize the function similar to that of a zoom lens by absorbing the idle light, and is used for compensating mode mismatch for a base frequency laser resonant cavity and an optical parametric oscillator resonant cavity on the nonlinear optical crystal, and the conversion efficiency of the optical parametric oscillator can be effectively improved.

Description

A kind of optical parametric oscillator of intracavity mode mismatch compensation
Technical field
The optical parametric oscillator of a kind of intracavity mode mismatch compensation of the present invention, relates to a kind of laser aid, belongs to optoelectronic areas
Background technology
Optical parametric oscillator has tunable advantage, and its tuning range can be from ultraviolet to far infrared, make up common lasers and can only export a kind of shortcoming of wavelength laser, be the important channel that obtains wideband adjustable, high coherent radiation light source and new wave band of laser system, there is very high using value.Especially in recent years, increasingly mature along with the appearance of a collection of novel nonlinear optical crystal and optical frequency switch technology, optical parametric oscillator technology has obtained breakthrough progress, is widely used in the fields such as environmental monitoring, material processed, data communication, photoelectric measurement, laser ranging and laser radar.
Current optical parametric oscillator mainly can be divided into external cavity type and two kinds of modes of intracavity realize.Optical parametric oscillator mainly produces a flashlight and ideler frequency light by pump light (for intracavity optical parametric oscillator, pump light claims again fundamental frequency light) pumping.External cavity type optical parametric oscillator is coupled to pump light in optical parametric oscillator through focusing on, and can conveniently realize the pattern matching of pump light and optical parametric oscillator chamber mould.But external cavity type optical parametric oscillator pumping light power is lower, adopts focusing system to improve power density and make system become complicated.Intracavity optical parametric oscillator is placed in the optical parametric oscillator chamber (hereinafter referred optical parametric oscillation chamber) that vibrates in basic frequency laser resonant cavity (hereinafter referred fundamental frequency chamber), the conversion that can utilize the high power density in fundamental frequency light (claiming again the pump light of optical parametric oscillator) chamber to improve optical parametric oscillation, but the pattern matching difficulty in fundamental frequency chamber and optical parametric oscillation chamber.We are calculated and are found, when introduce a lens of variable focal length (along with the rising of pump power, the focal length of lens shortens) in optical parametric oscillation chamber, can effectively extenuate the problem of mode mismatch by theory.When introducing lens in the optical parametric oscillation chamber of intracavity optical parametric oscillator, as shown in Figure 1.According to the laser system Structure Calculation of Fig. 1 fundamental frequency chamber and the optical parametric oscillation chamber chamber mode radius on nonlinear optical crystal, as shown in Figure 2.As shown in Figure 2, along with the rising of pump power, the chamber mode radius of fundamental frequency chamber on nonlinear optical crystal diminishes, but the chamber mode radius of optical parametric oscillation chamber on nonlinear optical crystal is constant.So along with the rising of pump power, two chamber mould mode mismatches are more and more serious.When shortening the focal length of lens of introducing in optical parametric oscillation chamber, will be conducive to extenuate two chamber mould mode mismatches under high power, but can cause two chamber mould mode mismatches under low-power.If so adopt lens of variable focal length, will be conducive to realize effective output of the laser raising along with pump power.
Summary of the invention
The object of this invention is to provide a kind of optical parametric oscillator of intracavity mode mismatch compensation, effectively extenuate intracavity optical parametric oscillator mode mismatch problem, thereby improve the conversion efficiency of optical parametric oscillator.
Technical solution of the present invention is described below by reference to the accompanying drawings:
The optical parametric oscillator of intracavity mode mismatch compensation of the present invention, places the chamber mirror 1 that is all-trans successively in light path, laser crystal 2, and acoustooptic Q-switching 3, Compound Cavity mirror 4, to the planar medium mirror 7 of ideler frequency light absorption, nonlinear optical crystal 5, output cavity mirror 6.Wherein be all-trans chamber mirror 1 and output cavity mirror 6 forms fundamental frequency chamber, forms optical parametric oscillation chamber by Compound Cavity mirror 4 and output cavity mirror 6.
The described planar medium mirror 7 to ideler frequency light absorption has certain thickness, and thickness can select 2mm between 10mm.
The described chamber mirror 1 that is all-trans plates the film system to the high reflection of basic frequency laser; Described output cavity mirror 6 plates the high film system of reflecting and flashlight part is seen through of basic frequency laser; Described Compound Cavity mirror 4 plates the high transmission of basic frequency laser, simultaneously the film system to the high reflection of flashlight; The described planar medium mirror 7 to ideler frequency light absorption plates simultaneously to the anti-reflection film system of flashlight, ideler frequency light and basic frequency laser.
The optical parametric oscillator implementation of intracavity mode mismatch compensation of the present invention is: the fundamental frequency light being produced by laser crystal 2 forms fundamental frequency chamber interior resonance at be all-trans chamber mirror 1 and output cavity mirror 6, and modulate to improve fundamental frequency light peak power in fundamental frequency chamber by acoustooptic Q-switching, produce flashlight and ideler frequency light by nonlinear optical crystal 5 optical parametric conversions simultaneously.Flashlight forms vibration reinforcement in optical parametric oscillation chamber at Compound Cavity mirror 4 and output cavity mirror 6, and by output cavity mirror 6 output signal light.Thereby by the ideler frequency light absorption heating to passing through, heat is caused the graded of refractive index to outdiffusion by center, play an effect of playing similar lens of variable focal length to the planar medium mirror 7 of ideler frequency light absorption.
Due to the rising of laser pumping power, fundamental frequency light strengthens, thereby flashlight and ideler frequency light also strengthen, so the thermal focal of the thermal lens effect that the planar medium mirror 7 of ideler frequency light absorption is caused shortens, the planar medium mirror 7 of ideler frequency light absorption is played to the lensing that focal length shortens along with pump power rising.According to theoretical calculating above, introduce the effect that can play compensation model mismatch to the planar medium mirror 7 of ideler frequency light absorption.
The optical parametric oscillator of the follow-on intracavity mode mismatch compensation of another kind of the present invention, can be without Compound Cavity mirror 4 in light path, the one side of the close acoustooptic Q-switching 3 of the planar medium mirror 7 to ideler frequency light absorption changes plating to the high transmission of basic frequency laser, film system to the high reflection of flashlight, plays the effect that replaces Compound Cavity mirror 4 simultaneously.
Accompanying drawing explanation
Fig. 1, the schematic diagram of lens of introducing in intracavity optical parametric oscillator chamber;
Fig. 2, the result of calculation figure of fundamental frequency chamber and the optical parametric oscillation chamber chamber mode radius on nonlinear optical crystal;
Fig. 3, a kind of schematic diagram of optical parametric oscillator of intracavity mode mismatch compensation;
Fig. 4, a kind of schematic diagram of optical parametric oscillator of modified model intracavity mode mismatch compensation
Drawing explanation: 1 is the chamber mirror that is all-trans, and 2 is laser crystal, and 3 is acoustooptic Q-switching, and 4 is Compound Cavity mirror, and 5 is nonlinear optical crystal, and 6 is output cavity mirror, and 7 is the planar medium mirror to ideler frequency light absorption.
Embodiment
Embodiment 1: make the optical parametric oscillator of an intracavity mode mismatch compensation according to the light path of Fig. 3, for exporting 1.5 microns of laser.
Laser crystal 2 adopts Nd:YVO 4; Nonlinear optical crystal 5 adopts press θ=90 °, the KTP that the noncritical phase matching of φ=0 ° is cut; The planar medium mirror 7 of ideler frequency light absorption is adopted to the BK7 glass lens that 4mm is thick.The chamber mirror 1 that is all-trans plates the film system to the high reflection of 1.06 microns of basic frequency lasers; Output cavity mirror 6 plates the high film system of reflecting and be 13% to 1.5 microns of flashlight transmitances of 1.06 microns of basic frequency lasers; Compound Cavity mirror 4 plates 1.06 microns of high transmissions of basic frequency laser, simultaneously the film system to the high reflection of 1.5 microns of flashlights; The planar medium mirror 7 of ideler frequency light absorption is plated simultaneously to 1.5 microns of flashlights, 3.5 microns of ideler frequency light and 1.06 microns of film systems that basic frequency laser is anti-reflection.
By laser crystal Nd:YVO 4the fundamental frequency chamber interior resonance that 2 1.06 microns of fundamental frequency light that produce form at be all-trans chamber mirror 1 and output cavity mirror 6, and modulate to improve fundamental frequency light peak power in fundamental frequency chamber by acoustooptic Q-switching, produce 1.5 microns of flashlights and 3.5 microns of ideler frequency light by nonlinear optical crystal KTP5 optical parametric conversion simultaneously.1.5 microns of flashlights form vibration reinforcement in optical parametric oscillation chamber at Compound Cavity mirror 4 and output cavity mirror 6, and export 1.5 microns of flashlights by output cavity mirror 6.Thereby the planar medium mirror 7 of ideler frequency light absorption will be generated heat to pass through 3.5 microns of ideler frequency light absorption, heat is caused the graded of refractive index to outdiffusion by center, play the effect of a thermal lens, thereby effectively the mode mismatch problem while not adding the planar medium mirror 7 to ideler frequency light absorption is extenuated in compensation.Adopt the diode-end-pumped of coupling fiber, under the pump power of 20W, realized the above 1.5 microns of flashlights of 3W, light phototranstormation efficiency is more than 15%, the optical parametric oscillator that does not relatively carry out mode mismatch compensation, and efficiency improves nearly one times.
Embodiment 2: make the optical parametric oscillator of an intracavity mode mismatch compensation according to the light path of Fig. 4, for exporting 1.5 microns of laser.
Laser crystal 2 adopts Nd:YVO 4; Nonlinear optical crystal 5 adopts press θ=90 °, the KTP that the noncritical phase matching of φ=0 ° is cut; The planar medium mirror 7 of ideler frequency light absorption is adopted to the BK7 glass lens that 6mm is thick.The chamber mirror 1 that is all-trans plates the film system to the high reflection of 1.06 microns of basic frequency lasers; Output cavity mirror 6 plates the high film system of reflecting and be 13% to 1.5 microns of flashlight transmitances of 1.06 microns of basic frequency lasers; The one side (left side) of the close acoustooptic Q-switching 3 of the planar medium mirror 7 to ideler frequency light absorption is plated 1.06 microns of high transmissions of basic frequency laser, film system to the high reflection of 1.5 microns of flashlights simultaneously, another side (right side) plating is simultaneously to 1.5 microns of flashlights, 3.5 microns of ideler frequency light and 1.06 microns of film systems that basic frequency laser is anti-reflection.
By laser crystal Nd:YVO 4the fundamental frequency chamber interior resonance that 2 1.06 microns of fundamental frequency light that produce form at be all-trans chamber mirror 1 and output cavity mirror 6, and modulate to improve fundamental frequency light peak power in fundamental frequency chamber by acoustooptic Q-switching, produce 1.5 microns of flashlights and 3.5 microns of ideler frequency light by nonlinear optical crystal KTP5 optical parametric conversion simultaneously.1.5 microns of flashlights form vibration reinforcement in optical parametric oscillation chamber at the left side and the output cavity mirror 6 of the planar medium mirror 7 to ideler frequency light absorption, and export 1.5 microns of flashlights by output cavity mirror 6.Thereby the planar medium mirror 7 of ideler frequency light absorption will be generated heat to pass through 3.5 microns of ideler frequency light absorption, heat is caused the graded of refractive index to outdiffusion by center, play the effect of a thermal lens, thereby effectively the mode mismatch problem while not adding the planar medium mirror 7 to ideler frequency light absorption is extenuated in compensation.Adopt the diode-end-pumped of coupling fiber, under the pump power of 20W, realized the above 1.5 microns of flashlights of 3W, light phototranstormation efficiency is more than 15%, the optical parametric oscillator that does not relatively carry out mode mismatch compensation, and efficiency improves nearly one times.
Embodiment 3: make the optical parametric oscillator of an intracavity mode mismatch compensation according to the light path of Fig. 3 (or Fig. 4), for exporting 1.5 microns of laser.
Different from embodiment 1,2 is that described laser crystal 2 adopts Nd:YAG or Nd:YAP or Nd:KGW or Nd:GdVO 4, make the optical parametric oscillator that an intracavity mode mismatch compensates.
Embodiment 4: make the optical parametric oscillator of an intracavity mode mismatch compensation according to the light path of Fig. 3 (or Fig. 4), for exporting 1.5 microns of laser.
Different from embodiment 1,2 is, and described nonlinear optical crystal adopts by θ=90 °, and the KTA of the noncritical phase matching cutting of φ=0 °, makes the optical parametric oscillator that an intracavity mode mismatch compensates.
Embodiment 5: make the optical parametric oscillator of an intracavity mode mismatch compensation according to the light path of Fig. 3, for exporting 2 microns of laser.
Laser crystal 2 adopts Nd:YVO 4; Nonlinear optical crystal 5 adopts press θ=90 °, the KTP that the noncritical phase matching of φ=0 ° is cut; The planar medium mirror 7 of ideler frequency light absorption is adopted to the BK7 glass lens that 4mm is thick.The chamber mirror 1 that is all-trans plates the film system to the high reflection of 1.3 microns of basic frequency lasers; Output cavity mirror 6 plates the high film system of reflecting and be 13% to 2 microns of flashlight transmitances of 1.3 microns of basic frequency lasers; Compound Cavity mirror 4 plates 1.3 microns of high transmissions of basic frequency laser, simultaneously the film system to the high reflection of 2 microns of flashlights; The planar medium mirror 7 of ideler frequency light absorption is plated simultaneously ideler frequency light and 1.3 microns of films systems that basic frequency laser is anti-reflection near 2 microns of flashlights, 3.5 microns.
By laser crystal Nd:YVO 4the fundamental frequency chamber interior resonance that 2 1.3 microns of fundamental frequency light that produce form at be all-trans chamber mirror 1 and output cavity mirror 6, and modulate to improve fundamental frequency light peak power in fundamental frequency chamber by acoustooptic Q-switching, simultaneously produce near ideler frequency light 2 microns of flashlights and 3.5 microns by nonlinear optical crystal KTP5 optical parametric conversion.2 microns of flashlights form vibration reinforcement in optical parametric oscillation chamber at Compound Cavity mirror 4 and output cavity mirror 6, and export 2 microns of flashlights by output cavity mirror 6.Thereby to the planar medium mirror 7 of ideler frequency light absorption by near ideler frequency light absorption heating pass through 3.5 microns, heat is caused the graded of refractive index to outdiffusion by center, play the effect of a thermal lens, thereby effectively the mode mismatch problem while not adding the planar medium mirror 7 to ideler frequency light absorption is extenuated in compensation.Adopt the diode-end-pumped of coupling fiber, under the pump power of 20W, realized the above 2 microns of flashlights of 2W, light phototranstormation efficiency is more than 10%, the optical parametric oscillator that does not relatively carry out mode mismatch compensation, and efficiency improves nearly one times.
Embodiment 6: make the optical parametric oscillator of an intracavity mode mismatch compensation according to the light path of Fig. 4, for exporting 2 microns of laser.
Laser crystal 2 adopts Nd:YVO 4; Nonlinear optical crystal 5 adopts press θ=90 °, the KTP that the noncritical phase matching of φ=0 ° is cut; The planar medium mirror 7 of ideler frequency light absorption is adopted to the BK7 glass lens that 6mm is thick.The chamber mirror 1 that is all-trans plates the film system to the high reflection of 1.3 microns of basic frequency lasers; Output cavity mirror 6 plates the high film system of reflecting and be 13% to 2 microns of flashlight transmitances of 1.3 microns of basic frequency lasers; The one side (left side) of the close acoustooptic Q-switching 3 of the planar medium mirror 7 to ideler frequency light absorption is plated 1.3 microns of high transmissions of basic frequency laser, film system to the high reflection of 2 microns of flashlights simultaneously, another side (right side) plating is simultaneously to ideler frequency light and 1.3 microns of films systems that basic frequency laser is anti-reflection near 2 microns of flashlights, 3.5 microns.
By laser crystal Nd:YVO 4the fundamental frequency chamber interior resonance that 2 1.3 microns of fundamental frequency light that produce form at be all-trans chamber mirror 1 and output cavity mirror 6, and modulate to improve fundamental frequency light peak power in fundamental frequency chamber by acoustooptic Q-switching, simultaneously produce near ideler frequency light 2 microns of flashlights and 3.5 microns by nonlinear optical crystal KTP5 optical parametric conversion.2 microns of flashlights form vibration reinforcement in optical parametric oscillation chamber at the left side and the output cavity mirror 6 of the planar medium mirror 7 to ideler frequency light absorption, and export 2 microns of flashlights by output cavity mirror 6.Thereby to the planar medium mirror 7 of ideler frequency light absorption by near ideler frequency light absorption heating pass through 3.5 microns, heat is caused the graded of refractive index to outdiffusion by center, play the effect of a thermal lens, thereby effectively the mode mismatch problem while not adding the planar medium mirror 7 to ideler frequency light absorption is extenuated in compensation.Adopt the diode-end-pumped of coupling fiber, under the pump power of 20W, realized the above 2 microns of flashlights of 2W, light phototranstormation efficiency is more than 10%, the optical parametric oscillator that does not relatively carry out mode mismatch compensation, and efficiency improves nearly one times.
Embodiment 7: make the optical parametric oscillator of an intracavity mode mismatch compensation according to the light path of Fig. 3 (or Fig. 4), for exporting 2 microns of laser.
Different from embodiment 1,2 is that described laser crystal 2 adopts Nd:YAG or Nd:YAP or Nd:KGW or Nd:GdVO 4, make the optical parametric oscillator that an intracavity mode mismatch compensates.
Embodiment 8: make the optical parametric oscillator of an intracavity mode mismatch compensation according to the light path of Fig. 3 (or Fig. 4), for exporting 2 microns of laser.
Different from embodiment 1,2 is, and described nonlinear optical crystal adopts by θ=90 °, and the KTA of the noncritical phase matching cutting of φ=0 °, makes the optical parametric oscillator that an intracavity mode mismatch compensates.

Claims (1)

1. an optical parametric oscillator for intracavity mode mismatch compensation, places the chamber mirror that is all-trans successively in light path, laser crystal, and acoustooptic Q-switching, Compound Cavity mirror, to the planar medium mirror of ideler frequency light absorption, nonlinear optical crystal, output cavity mirror; Chamber mirror and the output cavity mirror composition fundamental frequency chamber of being wherein all-trans, forms optical parametric oscillation chamber by Compound Cavity mirror and output cavity mirror; It is characterized in that: the fundamental frequency light being produced by laser crystal forms fundamental frequency chamber interior resonance at be all-trans chamber mirror and output cavity mirror, and modulate to improve fundamental frequency light peak power in fundamental frequency chamber by acoustooptic Q-switching, produce flashlight and ideler frequency light by nonlinear optical crystal optical parametric conversion simultaneously; Flashlight vibration in the optical parametric oscillation chamber of Compound Cavity mirror and output cavity mirror composition is strengthened, and by output cavity mirror output signal light; Thereby by the ideler frequency light absorption heating to passing through, heat is caused the graded of refractive index to outdiffusion by center, play the effect of a similar lens of variable focal length to the planar medium mirror of ideler frequency light absorption.
CN200910112275.3A 2009-07-29 2009-07-29 Optical parametric oscillator for intracavity mode mismatch compensation Active CN101986486B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910112275.3A CN101986486B (en) 2009-07-29 2009-07-29 Optical parametric oscillator for intracavity mode mismatch compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910112275.3A CN101986486B (en) 2009-07-29 2009-07-29 Optical parametric oscillator for intracavity mode mismatch compensation

Publications (2)

Publication Number Publication Date
CN101986486A CN101986486A (en) 2011-03-16
CN101986486B true CN101986486B (en) 2014-06-11

Family

ID=43710806

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910112275.3A Active CN101986486B (en) 2009-07-29 2009-07-29 Optical parametric oscillator for intracavity mode mismatch compensation

Country Status (1)

Country Link
CN (1) CN101986486B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103236638B (en) * 2013-03-29 2016-02-10 中山大学 A kind of 2 μm of lasers forming half Intracavity OPO based on body grating
CN112234422B (en) * 2020-10-15 2021-07-09 黑龙江大学 Dual-mode intermediate infrared parametric oscillator capable of switching output

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1334626A (en) * 2001-08-24 2002-02-06 清华大学 Optical parametric oscillator with reflectivity-variable internal cavity

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1334626A (en) * 2001-08-24 2002-02-06 清华大学 Optical parametric oscillator with reflectivity-variable internal cavity

Also Published As

Publication number Publication date
CN101986486A (en) 2011-03-16

Similar Documents

Publication Publication Date Title
CN107528197B (en) Two-chamber compound unsteady cavity modeling pumping from optical parametric oscillation mid-infrared laser device
CN104852266A (en) Intracavity-frequency-multiplication-optic-parameter-oscillator-based femto-second near-infrared laser light source and method
CN101950918B (en) Self-frequency-doubling green light solid laser suitable for laser display
CN100364187C (en) Internal cavity electrically controlled wavelength code output method and biwavelength laser module thereof
CN107425407B (en) Tunable blue light radiation source based on inner cavity self-frequency multiplication and implementation method
CN106992426A (en) A kind of intracavity pump optical parametric oscillator of Single-end output
CN101673917A (en) End-pumped mid-infrared KTA parametric oscillator
CN101592845A (en) Dual-wavelength tunable inner cavity tera-hertz parametric oscillator and using method thereof
CN104064947A (en) Femtosecond optical parameter oscillator for synchronous pump of all-solid-state mode-locking Yb laser
CN102842847A (en) Intracavity single resonant optical parametric oscillator (ICSRO)
CN110265862A (en) A kind of laser of high light beam quality
CN103236633B (en) 3-5-micron waveband intermediate infrared solid laser
CN105811231A (en) Volume Bragg grating high-energy pisosecond laser
CN103199427B (en) Intracavity single-resonance optical parametric oscillator
CN101986486B (en) Optical parametric oscillator for intracavity mode mismatch compensation
CN103944049A (en) Miniature three-endoscope ring cavity mid-infrared optical parametric oscillator
CN201226412Y (en) Whole solid-state intermediate infrared light parameter frequency difference laser
CN102044834A (en) Nonlinear mirror self-mode-locking laser
CN106410582A (en) Shared chamber light parameter oscillator of human-eye safe wave-band continuous output
CN101272029A (en) Full solid state infrared light parameter difference frequency laser
CN208241070U (en) THz wave oscillator
CN206546942U (en) Near-infrared Double wave band optical fiber laser in single pumping
CN113078536B (en) Lateral pumping Nd-MgO-PPLN mid-infrared laser and double-prism wavelength control method thereof
CN204118463U (en) A kind of wavelength of 1064nm and the 532nm based on rectilinear translation freely switches output laser
CN201001003Y (en) Thulium and holmium double-doped lutetium lithium fluoride crystal laser for laser diode side pumping

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant