CN103311794A - Solid laser with annular polarization compensation - Google Patents
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- CN103311794A CN103311794A CN2013101766579A CN201310176657A CN103311794A CN 103311794 A CN103311794 A CN 103311794A CN 2013101766579 A CN2013101766579 A CN 2013101766579A CN 201310176657 A CN201310176657 A CN 201310176657A CN 103311794 A CN103311794 A CN 103311794A
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Abstract
The invention discloses a solid laser with annular polarization compensation. The solid laser with the annular polarization compensation comprises a laser output mirror, a lambda/4 wave plate, a laser gain medium, a polarizing beam splitter, a first reflecting mirror, a lambda/2 wave plate and a second reflecting mirror, wherein laser in a resonant cavity is split by the polarizing beam splitter into polarization-state orthogonal light beams, i.e. laser p and laser s; after being transmitted in an annular closed light path, two beams of laser return to the polarizing beam splitter and then are coupled into a main oscillation light path; and therefore, the compensated depolarized loss contributes to obtaining laser output with high average power, high peak power and high light beam quality. According to the solid laser with the annular polarization compensation, the closed transmission and the compensation of orthogonal polarized light are realized through a polarizing beam splitting principle and a wave plate rotation technique; by the adoption of Q-switching control on the coupling main oscillation light path, when the high-efficiency operation is realized, the polarization output of the laser is obtained; the controllable polarization-state laser output is realized by rotating the azimuth angle of the wave plate; and an annular polarization compensation method enables the length of the laser resonant cavity to be effectively compressed, so that a higher electronic-to-optical conversion efficiency can be obtained.
Description
Technical field
The present invention relates to field of lasers, be specifically related to a kind of solid state laser of annular polarization compensation.It is applicable to laser industrial processes and research application field.
Background technology
Obtain high-average power, high-peak power, the polarised light of high light beam quality or the output of green glow, be the hot issue in laser development field always.Wherein the technical problem of general character is the little line polarisation of loss that obtains high light beam quality in resonant cavity, in order to reach above-mentioned target, usually adopt in resonant cavity, to add the Laser output that polarizing component (Brewster sheet, Glan prism, the film polarizer etc.) obtains polarization, then frequency doubling device is placed on intra resonant cavity (intracavity frequency doubling technology) or outside (cavity external frequency multiplication technology) and realizes highly effective green light output.Yet when the laser that above-mentioned device application consists of to this isotropic laser medium of Nd:YAG or anisotropic gain media, no matter under continuous state, move still and move under the Q impulse state, because the thermal birefringence effect of laser crystal, can greatly increase the depolarization loss of resonant cavity, cause Output of laser power and the zlasing mode of laser to descend widely.
Summary of the invention
The object of the invention is to the problem for above-mentioned technical existence, a kind of solid state laser of annular polarization compensation is provided.The present invention turns back to main resonance cavity with the portion of energy of depolarization loss by the conversion of polarized state, reduces depolarization loss when improving the output of laser polarization state, has realized the recycling of depolarization loss.On the other hand, this invention has increased the conversion efficiency of laser system integral body, improves beam quality, the controlled Laser output of acquisition polarization state of Output of laser, and this invention also can be applied to the generation of the green laser of frequency multiplication.
A kind of solid state laser of annular polarization compensation, comprise laser output mirror, also comprise λ/4 wave plates, gain medium, polarizing beam splitter mirror, the first speculum, λ/2 wave plates and the second speculum, laser incides polarizing beam splitter mirror with the Brewster angle, part laser-transmitting forms p light after passing polarizing beam splitter mirror, another part is by the rear s light that forms of polarizing beam splitter mirror reflection, p polarisation of light attitude is vertical with s polarisation of light attitude, p light passes λ/2 wave plates after through the first mirror reflects, λ/2 wave plates obtain changing s light with p polarisation of light attitude 90-degree rotation, overlap and opposite direction with the s light that forms after the polarizing beam splitter mirror reflection after conversion s light reflects by the second speculum; Reflect the rear s light that forms through the second mirror reflects and pass λ/2 wave plates by polarizing beam splitter mirror, λ/2 wave plates obtain changing p light with s polarisation of light attitude 90-degree rotation, conversion p light overlaps and opposite direction with the p light that forms after the polarizing beam splitter mirror transmission after by the first mirror reflects, conversion p light and conversion s light pass through gain medium, λ/4 wave plates and laser output mirror outgoing successively after bundle is closed in the polarizing beam splitter mirror effect, described laser output mirror is semi-transparent semi-reflecting lens.
Be provided with Q-switching device on the light path between aforesaid polarizing beam splitter mirror and the gain medium.
Be provided with Q-switching device on the light path between aforesaid the first speculum and the polarizing beam splitter mirror.
The structure of annular polarization provided by the invention compensation, it comprises and is positioned at laser output mirror, λ/4 wave plates, gain medium, Q-switching device, polarizing beam splitter mirror, the first speculum, λ/2 wave plates, the compositions such as the second speculum.Laser in the resonant cavity is divided into light beam p light and the s light of polarization state quadrature through polarizing beam splitter mirror, get back to polarizing beam splitter mirror after two bundle laser transmit and be coupled into the main oscillations light path in the ring seal light path, thereby the depolarization sheet loss of compensation is conducive to obtain the Laser output of high-average power, high-peak power, high light beam quality.Particularly, the present invention has the following advantages:
(1) utilizes the principle of polarization spectro and sealing transmission and the compensation that wave plate optically-active technology realizes crossed polarized light.
(2) utilize the principle of polarization spectro, adopt the control of transferring Q in coupling main oscillations light path, when reaching efficient operation, obtain the polarization output of laser.
(4) in main optical path, add λ/4 wave plates, realize the Laser output of controllable polarization attitude by the azimuth of rotating wave plate.
(5) adopt the method for annular polarization compensation effectively to compress the chamber of laserresonator long, can obtain higher electro-optical efficiency.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of the embodiment of the invention 3;
Fig. 4 is that the present invention is at the structural representation of frequency doubling green light output.
Among the figure, the 1-laser output mirror; 2-λ/4 wave plates; The 3-gain medium; The 4-Q-switching device; The 5-polarizing beam splitter mirror; 6-the first speculum; 7-λ/2 wave plates; 8-the second speculum; The 9-frequency-doubling crystal; 10-laser trunk roads total reflective mirror; The 11-dichroic mirror.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail.
Embodiment 1:
Shown in Figure 1, this laser comprises laser output mirror 1, λ/4 wave plates 2, gain medium 3, polarizing beam splitter mirror 5, the first speculums 6, λ/2 wave plates, 7, the second speculums 8.Wherein laser output mirror 1, and polarizing beam splitter mirror 5, the first speculums 6, the second speculums 8 consist of laserresonator.Light path between laser beam splitter mirror 5 and the Laser output 1 is the main optical path of resonant cavity.
λ/4 wave plates 2 is positioned on the main optical path of laserresonator, ratio and the composition of the polarization state of control resonant cavity Output of laser.
Gain medium 3 is positioned on the main optical path of laserresonator, can be that isotropic laser medium also can be anisotropic gain medium.
Polarizing beam splitter mirror 5 is polarizers, and it can be the polariscope (angle of the main optical path of its eyeglass normal and resonant cavity is as Brewster's angle) of placing take the Brewster angle, also can be other optical elements that inclined to one side beam splitting effect has been arranged, such as Glan prism etc.
The first speculum 6, the polarization compensation light path of λ/2 wave plates, 7, the second speculums 8 and the sealing of polarizing beam splitter mirror 5 loopings.
Operation principle is: when the laser transmission in the resonant cavity main optical path arrives polarizing beam splitter mirror 5, being polarized beam splitter 5 is divided into laser and has the orthogonal p light of polarization state and s light, p polarisation of light attitude is parallel to the XY plane, (the XY plane is shown in Figure 1 to the polarization state of s perpendicular to the XY plane, be the main optical path of resonant cavity and the plane at polarization compensation light path place), wherein the p light of transmission enters the light path of the second speculum 8 and the first speculum 6 formations after 6 reflections of the first speculum, in this light path by λ/2 wave plates 7 with its polarization state 90-degree rotation, become polarization state perpendicular to the conversion s light on XY plane, get back to polarizing beam splitter mirror 5 after 8 reflections of the second speculum, turn back to resonant cavity main optical path by polarizing beam splitter mirror this moment; Meanwhile, the s light that is polarized beam splitter 5 reflections enters the light path of the first speculum 6 and the second speculum 8 formations after 8 reflections of the second speculum, in this light path by λ/2 wave plates 7 with its polarization state 90-degree rotation, become the conversion p light that polarization state is parallel to the XY plane, turn back to resonant cavity main optical path in by polarizing beam splitter mirror this moment.The laser of getting back in the resonant cavity main optical path has the orthogonal polarisation state light beam, and this light beam transfers to λ/4 wave plate places after amplifying through gain medium 3, if the optical axis of λ/4 wave plates is identical with the pairwise orthogonal polarised light, then Output of laser has the characteristic of cross-polarization; If the optical axis of λ/4 wave plates and polarization state direction of vibration angle 45 degree, then the laser of output has the output characteristic of garden polarization; If the optical axis of λ/4 wave plates and polarization state direction of vibration angle are between 0 degree and 45 degree, then the laser of output has the output characteristic of elliptical polarization.
Because the laser crystal depolarization loss is got back in the resonant cavity by the annular polarization compensation technique, depolarization loss in original technology has obtained recycling, the whole conversion efficiency of laser system improves nearly 30%, the shape of output facula is by uncompensated cross hot spot, become circular light spot, beam quality also is greatly enhanced.
Embodiment 2:
Fig. 2 has provided laser of the present invention at a kind of application example of transferring under the Q operation, and as shown in Figure 2, this laser comprises laser output mirror 1, λ/4 wave plates 2, gain medium 3, Q-switching device 4, polarizing beam splitter mirror 5, the first speculum 6, λ/2 wave plates, 7, the second speculums 8.Wherein laser output mirror 1, and polarizing beam splitter mirror 5, the first speculums 6, the second speculums 8 consist of laserresonator.Light path between laser beam splitter mirror 5 and the Laser output 1 is the main optical path of resonant cavity.
λ/4 wave plates 2 is positioned on the main optical path of laserresonator, ratio and the composition of the polarization state of control resonant cavity Output of laser.
Gain medium 3 is positioned on the main optical path of laserresonator, can be that isotropic laser medium also can be anisotropic gain medium.
Q-switching device 4 is A-O Q-switch devices, plays in main optical path and turn-offs the function that light path realizes transferring the Q operation.
Polarizing beam splitter mirror 5 is polarizers, and it can be the polariscope (angle of the main optical path of its eyeglass normal and resonant cavity is as Brewster's angle) of placing take the Brewster angle, also can be other optical elements that inclined to one side beam splitting effect has been arranged, such as Glan prism etc.
The first speculum 6, the polarization compensation light path of λ/2 wave plates, 7, the second speculums 8 and the sealing of polarizing beam splitter mirror 5 loopings.
Operation principle is: when the laser transmission in the resonant cavity main optical path arrives polarizing beam splitter mirror 5, being polarized beam splitter 5 is divided into laser and has the orthogonal p light of polarization state and s light, p polarisation of light attitude is parallel to the XY plane, (the XY plane is shown in Figure 2 to the polarization state of s perpendicular to the XY plane, be the main optical path of resonant cavity and the plane at polarization compensation light path place), wherein the p light of transmission enters the light path of the second speculum 8 and the first speculum 6 formations after 6 reflections of the first speculum, in this light path by λ/2 wave plates 7 with its polarization state 90-degree rotation, become polarization state perpendicular to the conversion s light on XY plane, get back to polarizing beam splitter mirror 5 after 8 reflections of the second speculum, turn back to resonant cavity main optical path by polarizing beam splitter mirror this moment; Meanwhile, the s light that is polarized beam splitter 5 reflections enters the light path of the first speculum 6 and the second speculum 8 formations after 8 reflections of the second speculum, in this light path by λ/2 wave plates 7 with its polarization state 90-degree rotation, become the conversion p light that polarization state is parallel to the XY plane, turn back to resonant cavity main optical path by polarizing beam splitter mirror this moment.The laser of getting back in the resonant cavity main optical path has the orthogonal polarisation state light beam, and this light beam transfers to λ/4 wave plate places after amplifying through gain medium 3, if the optical axis of λ/4 wave plates is identical with the pairwise orthogonal polarised light, then Output of laser has the characteristic of cross-polarization; If the optical axis of λ/4 wave plates and polarization state direction of vibration angle 45 degree, then the laser of output has the output characteristic of garden polarization; If the optical axis of λ/4 wave plates and polarization state direction of vibration angle are between 0 degree and 45 degree, then the laser of output has the output characteristic of elliptical polarization.Q-switching device 4 is placed in the middle of resonant cavity main optical path gain medium 3 and the polarizing beam splitter mirror 5, because the polarization state of the principle of acousto-optical device 4 Q-switch light and laser is irrelevant, therefore can realize that by the control to main optical path light laser moves under accent Q state.
Embodiment 3:
Fig. 3 has provided laser of the present invention at the second application example of transferring under the Q operation, and as shown in Figure 3, this laser comprises laser output mirror 1, λ/4 wave plates 2, gain medium 3, Q-switching device 4, polarizing beam splitter mirror 5, the first speculum 6, λ/2 wave plates, 7, the second speculums 8.Wherein laser output mirror 1, and polarizing beam splitter mirror 5, the first speculums 6, the second speculums 8 consist of laserresonator.Light path between laser beam splitter mirror 5 and the Laser output 1 is the main optical path of resonant cavity.
λ/4 wave plates 2 is positioned on the main optical path of laserresonator, ratio and the composition of the polarization state of control resonant cavity Output of laser.
Gain medium 3 is positioned on the main optical path of laserresonator, can be that isotropic laser medium also can be anisotropic gain medium.
Q-switching device 4 is that A-O Q-switch device can be electric-optically Q-switched device also, is placed on the branch road of circulation, realizes the accent Q operation of laser by p polarised light in the road of simultaneously shutoff and s polarised light, obtains the Laser output of peak value laser pulse.
Polarizing beam splitter mirror 5 is polarizers, and it can be the polariscope (angle of the main optical path of its eyeglass normal and resonant cavity is as Brewster's angle) of placing take the Brewster angle, also can be other optical elements that inclined to one side beam splitting effect has been arranged, such as Glan prism etc.
The first speculum 6, the polarization compensation light path of λ/2 wave plates, 7, the second speculums 8 and the sealing of polarizing beam splitter mirror 5 loopings.
Operation principle is: when the laser transmission in the resonant cavity main optical path arrives polarizing beam splitter mirror 5, being polarized beam splitter 5 is divided into laser and has the orthogonal p light of polarization state and s light, p polarisation of light attitude is parallel to the XY plane, (the XY plane is shown in Figure 3 to the polarization state of s perpendicular to the XY plane, be the main optical path of resonant cavity and the plane at polarization compensation light path place), wherein the p light of transmission enters the light path of the second speculum 8 and the first speculum 6 formations after 6 reflections of the first speculum, in this light path by λ/2 wave plates 7 with its polarization state 90-degree rotation, become polarization state perpendicular to the conversion s light on XY plane, get back to polarizing beam splitter mirror 5 after 8 reflections of the second speculum, turn back to resonant cavity main optical path by polarizing beam splitter mirror this moment; Meanwhile, the s light that is polarized beam splitter 5 reflections enters the light path of the first speculum 6 and the second speculum 8 formations after 8 reflections of the second speculum, in this light path by λ/2 wave plates 7 with its polarization state 90-degree rotation, become the conversion p light that polarization state is parallel to the XY plane, turn back to resonant cavity main optical path by polarizing beam splitter mirror this moment.The laser of getting back in the main resonance cavity has the orthogonal polarisation state light beam, and this light beam transfers to λ/4 wave plate places after amplifying through gain medium 3, if the optical axis of λ/4 wave plates is identical with the pairwise orthogonal polarised light, then Output of laser has the characteristic of cross-polarization; If the optical axis of λ/4 wave plates and polarization state direction of vibration angle 45 degree, then the laser of output has the output characteristic of garden polarization; If the optical axis of λ/4 wave plates and polarization state direction of vibration angle are between 0 degree and 45 degree, then the laser of output has the output characteristic of elliptical polarization.Q-switching device 4 is placed in the polarization compensation light path of polarizing beam splitter mirror 5, the first speculums 6 and the sealing of the second speculum 8 loopings.If Q-switching device is A-O Q-switch device, because the polarization state of the principle of acousto-optical device 4 switch light and laser is irrelevant, realize the accent Q operation of laser by p polarised light in the road of simultaneously shutoff and s polarised light.If Q-switching device is electric-optically Q-switched device, when electrooptic crystal became λ/2 wave plate by making alive, the light beam of p polarization was because successively by electrooptic crystal and λ/2 wave plates 7, polarization state is still kept the p polarization, when reflexing to polarizing beam splitter mirror 5, light beam directly is transferred to the outside of resonant cavity; In like manner by electrooptic crystal and λ/2 wave plates 7, polarization state is still kept the s polarization to the light beam of s polarization owing to successively, and when reflexing to polarizing beam splitter mirror 5, light beam directly is transferred to the outside of resonant cavity, and main resonance cavity is turned off, thereby realizes laser accent Q operation.
Embodiment 4:
Fig. 4 has provided the present invention's application example in the frequency doubling green light laser design, and this laser comprises laser trunk roads total reflective mirror 10, gain medium 3, Q-switching device 4, polarizing beam splitter mirror 5, dichroic mirror 11, λ/2 wave plates, 7, the second speculums 8, frequency-doubling crystal 9; Laser trunk roads outgoing mirror 10 wherein, polarizing beam splitter mirror 5, laser output mirror 11, the second speculums 8 consist of laserresonators.Light path between laser beam splitter mirror 5 and the laser trunk roads total reflective mirror 10 is the main optical path of resonant cavity.
Laser trunk roads total reflective mirror 10 is total reflective mirrors of laser, enough reflects amplification at the raising resonant cavity.
Gain medium 3 is positioned on the main optical path of laserresonator, can be that isotropic laser medium also can be anisotropic gain medium.
Q-switching device 4 is A-O Q-switch devices, plays in main optical path and turn-offs the function that light path realizes transferring the Q operation.
Polarizing beam splitter mirror 5 is polarizers, and it can be the polariscope (angle of its eyeglass normal and resonant cavity optical axis is as Brewster's angle) of placing take the Brewster angle, also can be other optical elements that inclined to one side beam splitting effect has been arranged, such as Glan prism etc.
Dichroic mirror 11 is coated with the film and to the high antireflection film of the green laser of frequency multiplication of being all-trans to optical maser wavelength, can realize the output of the green laser of frequency multiplication.
Dichroic mirror 11, λ/2 wave plates, 7, the second speculums 8 and polarizing beam splitter mirror 5 loopings sealing polarization compensation light path.
Frequency-doubling crystal 9 is rectangular shape, and the height that end face is coated with laser and frequency doubling green light increases hyaline membrane, and an end is coated with to the high anti-reflection of laser with to the high rete that is all-trans of frequency doubling green light.
Operation principle is: when the laser transmission in the resonant cavity main optical path arrives polarizing beam splitter mirror 5, being polarized beam splitter 5 is divided into laser and has the orthogonal p light of polarization state and s light, p polarisation of light attitude is parallel to the XY plane, (the XY plane is shown in Figure 4 to the polarization state of s perpendicular to the XY plane, be the main optical path of resonant cavity and the plane at polarization compensation light path place), wherein the p light of transmission enters the light path of the second speculum 8 and dichroic mirror 11 formations after dichroic mirror 11 reflections, in this light path by λ/2 wave plates 7 with its polarization state 90-degree rotation, become polarization state perpendicular to the conversion s light on XY plane, get back to polarizing beam splitter mirror 5 after 8 reflections of the second speculum, turn back to resonant cavity main optical path by polarizing beam splitter mirror this moment; Meanwhile, the s light that is polarized beam splitter 5 reflections enters the light path of dichroic mirror 11 and the second speculum 8 formations after 8 reflections of the second speculum, in this light path by λ/2 wave plates 7 with its polarization state 90-degree rotation, become the conversion p light that polarization state is parallel to the XY plane, turn back to the resonant cavity main optical path by polarizing beam splitter mirror.The laser that get back in the main resonance cavity this moment has the orthogonal polarisation state light beam, after this light beam amplifies through gain medium 3, again by 10 reflections of laser trunk roads total reflective mirror.Frequency-doubling crystal 9 is placed in the annular polarization compensation light path, because the laser that vibrates in the annular polarization compensation circuit is two line polarisations of quadrature, adopts the scheme of II class phase matched can obtain efficient shg efficiency.
During specific implementation, gain medium 3, the order between the Q-switching device 4 can also be done other variation, and this variation only may bring the difference of Output of laser polarization characteristic, does not affect the realization of purpose of the present invention and technique effect.
Specific embodiment described herein only is to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (3)
1. the solid state laser of annular polarization compensation, comprise laser output mirror (1), it is characterized in that, also comprise λ/4 wave plates (2), gain medium (3), polarizing beam splitter mirror (5), the first speculum (6), λ/2 wave plates (7) and the second speculum (8), laser incides polarizing beam splitter mirror (5) with the Brewster angle, part laser-transmitting forms p light after passing polarizing beam splitter mirror (5), another part is by the rear s light that forms of polarizing beam splitter mirror (5) reflection, p polarisation of light attitude is vertical with s polarisation of light attitude, p light passes λ/2 wave plates (7) after reflecting through the first speculum (6), λ/2 wave plates (7) obtain changing s light with p polarisation of light attitude 90-degree rotation, overlap and opposite direction with the s light that forms after polarizing beam splitter mirror (5) reflection after conversion s light reflects by the second speculum (8); Reflect through the second speculum (8) and pass λ/2 wave plates (7) by the s light that forms after polarizing beam splitter mirror (5) reflection, λ/2 wave plates (7) obtain changing p light with s polarisation of light attitude 90-degree rotation, conversion p light overlaps and opposite direction with the p light that forms after polarizing beam splitter mirror (5) transmission by the first speculum (6) reflection is rear, conversion p light and conversion s light pass through gain medium (3), λ/4 wave plates (2) and laser output mirror (1) outgoing successively after bundle is closed in polarizing beam splitter mirror (5) effect, described laser output mirror (1) is semi-transparent semi-reflecting lens.
2. the solid state laser of a kind of annular polarization compensation according to claim 1 is characterized in that, is provided with Q-switching device (4) on the light path between described polarizing beam splitter mirror (5) and the gain medium (3).
3. the solid state laser of a kind of annular polarization compensation according to claim 1 is characterized in that, is provided with Q-switching device (4) on the light path between described the first speculum (6) and the polarizing beam splitter mirror (5).
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| CN105322423A (en) * | 2015-11-15 | 2016-02-10 | 西南技术物理研究所 | Dual-total reflective mirror composite resonant cavity of Nd:YAG electro-optic Q-switched laser |
| CN108173112A (en) * | 2018-02-23 | 2018-06-15 | 中国工程物理研究院激光聚变研究中心 | A kind of laser depolarization compensation device and application method |
| CN109470449A (en) * | 2018-10-12 | 2019-03-15 | 中国科学院上海光学精密机械研究所 | Laser gain module key performance test device |
| CN112648942A (en) * | 2021-01-07 | 2021-04-13 | 长春理工大学 | Catadioptric multi-optical-axis coaxiality dynamic detection device and detection method |
| CN113285339A (en) * | 2021-05-19 | 2021-08-20 | 张振国 | Polarization output ring resonator with tunable output rate and adjustable output mirror |
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| US20120188626A1 (en) * | 2011-01-21 | 2012-07-26 | Rothenberg Joshua E | Method and apparatus for suppression of four-wave mixing using polarization control with a high power polarization maintaining fiber amplifier system |
| US20130003763A1 (en) * | 2010-03-12 | 2013-01-03 | Electronics And Telecommunications Research Institute | Apparatus for adjusting polarization characteristics, and ultra-short ultra-high intensity pulse laser generator comprising same |
| CN203233046U (en) * | 2013-05-14 | 2013-10-09 | 武汉梅曼科技有限公司 | Annular polarization-compensation solid-state laser |
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| US20080101424A1 (en) * | 2006-10-25 | 2008-05-01 | Charles Xiaoyi Wang | Output power control for harmonic-generating laser |
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| US20130003763A1 (en) * | 2010-03-12 | 2013-01-03 | Electronics And Telecommunications Research Institute | Apparatus for adjusting polarization characteristics, and ultra-short ultra-high intensity pulse laser generator comprising same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322423A (en) * | 2015-11-15 | 2016-02-10 | 西南技术物理研究所 | Dual-total reflective mirror composite resonant cavity of Nd:YAG electro-optic Q-switched laser |
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| CN109470449A (en) * | 2018-10-12 | 2019-03-15 | 中国科学院上海光学精密机械研究所 | Laser gain module key performance test device |
| CN112648942A (en) * | 2021-01-07 | 2021-04-13 | 长春理工大学 | Catadioptric multi-optical-axis coaxiality dynamic detection device and detection method |
| CN113285339A (en) * | 2021-05-19 | 2021-08-20 | 张振国 | Polarization output ring resonator with tunable output rate and adjustable output mirror |
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Application publication date: 20130918 |