共查询到19条相似文献,搜索用时 78 毫秒
1.
单频运转的Nd:YVO4激光器 总被引:5,自引:2,他引:3
报道了激光二极管纵向泵浦单频运转的Nd:YVO4激光器,用波长为809nm激光二极管的连续输出功率660mW泵浦,获得1064nm,功率为155mW连续单频输出,泵浦阈值226mW,斜率效率33.8%,线宽小于10MHz. 相似文献
2.
报道有一个3W激光二极管端面泵浦Nd:LMA激光器,实验采用三镜折迭像散补偿腔。在1054nm波长,激光器连续输出功率达620mW,斜率效率为50%,光-光转换效率20%,在1083nm波长处,激光器连续输出功率为64mW,斜率效率为6%,光转换效率2.1%。 相似文献
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激光二极管直接耦合泵浦的高效率Nd:YVO4/KTP腔内倍频激光器 总被引:4,自引:0,他引:4
使激光二极管的发光光面紧贴Nd:YVO4激光晶体,“面对面”直接耦合泵浦,采用KTP晶体腔内倍频,在503mW的泵浦功率下,获得532nm基横模绿光输出约73mW,光光总体转换效率为14.5%。 相似文献
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LD汞浦Nd:YAG激光器的连续激光输出和高重复率调Q 总被引:1,自引:1,他引:0
用连续输出1W国产多量子阱激光二极管列阵(MQW-LDA)泵浦Nd:YAG固体激光器,连续激光输出最大功率为112mW,光-光效率为10.6%,斜效率为20%,实现了连续泵浦高重复频率(1kHz,4kHz,10kHz)调Q输出,最大峰值355W,最大平均功率为43.7mW。 相似文献
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本文介绍了一种用波长为809nm的激光二极管(LD)端面泵浦厚度为1mm的微片NdYVO4全固化固体激光器.器件结构上采用了一种独特的光学系统,该系统由分别用于LD激光束的耦合和聚焦的两部分组成.由NdYVO4的一个平面与一个曲率半径为21mm的球面镜组成半共焦腔,以获得高的转换效率.文中详细讨论了单横模运转时的泵浦光与激光腔模之间的匹配问题.当泵浦光功率为400mW时,获得152mW的1064nm波长的TEM00模激光输出.器件阈值功率为48.3mW,总的光-光转换效率为38%,斜效率为43%. 相似文献
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激光二极管泵浦的全固体锁模激光器 总被引:3,自引:0,他引:3
报道了用国产激光二极管泵浦Nd:YVO4激光器连续锁模的实验结果。在泵浦功率为122.4mW时获得稳定的锁模序列,脉冲宽度43ps(FWHM),输出功率7mW,实验中在较低的泵浦强度下观察到了弛豫振荡的振幅调制现象,并导出了含有自相位调制时锁模宽度的自恰解。 相似文献
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产生功率为43mW的二极管泵浦Cr:LiSAF环形激光器据Schwartz光电研究部的科学家报导,一种可调谐的二极管泵浦Cr:LISAF环形激光器在849nm产生了高过43mW的单纵模输出功率。增加一个双折射滤光片,使该激光器从810nm至860nm... 相似文献
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半导体激光器泵浦的Cr:LiSAF激光器 总被引:7,自引:2,他引:5
本文报道了用半导体激光器泵浦Cr:LiSAF激光器腔的设计以及输出特性,在用准连续波泵浦时,阈值平均功率为42mW,在泵浦平均功率为60mW时得到了3mW的激光输出. 相似文献
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全内腔绿光He-Ne激光器 总被引:4,自引:0,他引:4
采用Needle法,对全内腔绿光He-Ne激光器膜系进行设计,并给出了所设计膜系的光谱性能。利用离子溅射镀膜技术镀制了所设计的膜片并且给出了测量结果。制备了多种规格的全内腔绿光He-Ne激光器并且讨论了相关工艺。其中腔长420mm的全内腔绿光He-Ne激光器的典型输出光功率为3mW(单模),腔长360mm的典型输出光功率为2mW(单模),腔长240mm的典型输出光功率为1mW(单模),腔长100mm的小短管子也能有0.1mw的出光功率。 相似文献
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A novel method incorporating the shielded method and the post-processing method has been proposed to fabricate the π-phase-shifted fibre grating. Then an Er-doped π-phase-shifted distributed feedback fibre grating laser has been fabricated using the grating. The laser threshold is 20mW. When pumped with 90mW light at 980nm, the laser gives an output of 1.1mW. Its signal-to-noise ratio is better than 60dB. It is demonstrated that the laser is single mode operation by means of a Fabry--Perot scanning interferometer. 相似文献
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LIU Guorong WANG Nuo FENG Xuanqi 《Chinese Journal of Lasers》1998,7(1):25-28
OperativeCharacteristicsoftheDual┐wavelengthCrLiSAFLaserLIUGuorongWANGNuoFENGXuanqi(PhysicsDepartment,NorthwestUniversity,Xi?.. 相似文献
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A novel all-fiber passively Q-switched erbium laser with a Co(2+):ZnSe crystal as a saturable absorber is demonstrated experimentally. A pump power threshold of 20.5 mW, which the authors believe is the lowest to date, has been measured. Giant pulses with energy of 3.6 nJ and peak power of 0.7 mW have been obtained. 相似文献
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650 nm-range AlGaInP multi-quantum well (MQW) laser diodes grown by low pressure metal organic chemical vapor deposition (LP-MOCVD)
have been studied and the results are presented in this paper. Threshold current density of broad area contact laser diodes
can be as low as 350 A/cm2. Laser diodes with buried-ridge strip waveguide structures were made, threshold currents and differential efficiencies are
(22–40) mA and (0.2–0.7) mW/mA, respectively. Typical output power for the laser diodes is 5 mW, maximum output power of 15
mW has been obtained. Their operation temperature can be up to 90°C under power of 5 mW. After operating under 90°C and 5
mW for 72 hrs, the average increments for the threshold currents of the lasers at 25°C and the operation currents at 5 mW
(at 25°C) are (2–3) mA and (3–5) mA, respectively. Reliability tests showed that no obvious degradation was observed after
1400 hours of CW operation under 50°C and 2.5 mW.
Presented at the 1st Czech-Chinese Workshop “Advanced Materials for Optoelectronics”, Prague, Czech Republic, June 13–17,
1998. 相似文献
17.
N. A. M. A. Hambali M. A. Mahdi M. H. Al-Mansoori M. I. Saripan A. F. Abas M. Ajiya 《Laser Physics》2010,20(7):1618-1624
We present a single-wavelength Brillouin fiber laser utilizing a ring-cavity configuration. Performances and characteristics of the laser system have been investigated at different output coupling ratios. The optimum output power of the system stood at 7.3 mW, which was obtained at 90% output coupling ratio. A low Brillouin threshold power of 0.9 mW was obtained at 10% output coupling ratio when the Brillouin pump was set at its maximum power of 24 mW. 相似文献
18.
LU Junhua LI Guangming LIU Junhai GONG Bo LIU Yaogang WANG Jiyang SHAO Zongshu JIANG Minhua 《Chinese Journal of Lasers》1999,8(6):485-488
1 Introduction Inrecentyears,compactvisiblelasershavebeenwidelyusedinthefieldsofindustry,medicine,military,biology,scientificresearchandentertainment.Laserdiodepumped,intracavityfrequencydoubledsolidstatelasersareextensivelyusedasvisiblesourcebec… 相似文献
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LU Junhua LI Guangming LIU Junhai GONG Bo LIU Yaogang WANG Jiyang SHAO Zongshu JIANG Minhua 《中国光学快报(英文版)》1999,8(6)
Self-frequency doubling laser performance of Ti∶sapphire laser pumped Nd∶YCOB at different phase-matching directions was investigated. Results show that the type I phase-matching direction of (64.5°, 35.5°) is much better than the direction of (33°, 9°). A maximum green light (530.5 nm) output power of 19.4 mW has been achieved with an pumping power of 530 mW, and an efficiency of 3.7 %. The laser oscilltion threshold for self-frequency doubling operation is measured to be less than 2 mW. 相似文献