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二极管泵浦的高效连续波基横模Nd:YAG激光顺 总被引:3,自引:0,他引:3
报道了用激光二极管端面泵浦的高效连续波TEM00模Nd:YAG激光器,最大输出为0.65W,斜效率51%,光-光效率最高达40.6%,并给出了耦合力学系统和二极管泵浦Nd:YAG激光器的器件结构。 相似文献
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激光二极管泵浦单频连续工作的Nd:YAG激光器 总被引:5,自引:2,他引:3
在国内首次报道了激光二极管泵浦单频连续工作的Nd:YAG激光器,采用扭摆模腔技术方法,在808nm激光二极管连续泵浦下,取得1064nm连续单频工作,输出功率55mW的结果,泵浦阈值276mW,斜率效率23%,线宽小于25MHz(受仪器测量精度限制)。 相似文献
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报道了用一个3W激光二极管端面泵浦Nd:YMA激光器。实验采用三镜折叠象散补偿腔。在1054mm波长,激光器CW输出功率达230mW,斜率效率为38%,光-光转换效率9.5%, 相似文献
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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
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激光二极管端面泵浦的单频固体激光器的理论研究 总被引:1,自引:0,他引:1
给出了激光二极管端面泵浦的驻波激光器单频运转时的最大泵浦功率与腔参数和激光介质参烽之间的简单函数关系,对于单频激光器的设计具有实际指导意义。 相似文献
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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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以空间相关的速率方程理论为基础,提出了一种改进的激光二极管纵向泵浦固体激光器的设计方法,给出了在一定泵浦耦合方式下,激光腔模尺寸和输出耦合率最佳值的选取依据,以采用不同耦合系统的端面泵浦Nd:YAG激光器设计实例,相应的实验结果与有理论计算符合得较好。 相似文献
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In high power laser systems, the stability of the seed laser is vitally important. This paper presents the work on the design and manufacture of a highly stable LD pumped solid state seed laser which has the advantages of being all solid state, compact, easy to manufacture and low cost. The laser was composed of two parts. One was an LD pumped 0.5 mm thin Nd: YLF laser system in which the instability was around±6% (3σ). The other was a close-looped laser power control system using external cavity power feedback. Using an electro-optic modulator, a 1×2 optical fiber splitter and a signal processing circuit, we successfully realized the highly stable LD pumped Nd: YLF laser in which the instability of laser output power was lower than±0.2 %/hour (3σ). A digital PID (Proportion, Integration and Differentiation) control method was used with a control frequency of 40 kHz. The 3 mW of highly stable laser power through the optical fiber was obtained. 相似文献
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Supported by the National High Technology Project.YAN Ping HE Bin WEI Guanghui 《Chinese Journal of Lasers》2000,9(6):481-487
1 Introduction Inhighpowerlasersystemhighlystablesolidstatelaserisvitallyimportant.However,duetothetemperaturefluctuationintheLDpumpsourceandthelengthfluctuationoflaserresonantcavitiesLD pumpedsolidstatelasershavepowerinstabilitiesofaround± 10 % .Withamo… 相似文献
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H. Y. Shen R. F. Wu Z. D. Zeng W. X. Lin R. R. Zeng Y. P. Zhou G. F. Yu C. H. Huang 《中国光学快报(英文版)》2000,9(2)
A laser diode (LD) pumping high-stability 1047 nm TEM00 mode Nd: YLiF4 (Nd: YLF) continuous wave (CW) laser is reported in this letter. The laser output power of 5.83 W with optical to optical effidency of 27% and slope efficiency of 30% has been achieved The instability of output power is 0.36% and spike caused by relaxation oscillation has not been observed in the laser beam. The transverse cross section of laser beam is an ellipse, the diameters of laser beam at output mirror in both directions are 0.97 mm and 1.07 mm, respectively. The divergent angles are 0. 936 mrad and 0. 774 mrad, and the values of M2 are 1.37 and 1.24, respectively. The polarization degree of laser beam is better than 237:1. 相似文献
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H. Y. Shen R. F. Wu Z. D. Zeng W. X. Lin R. R. Zeng Y. P. Zhou G. F. Yu C. H. Huang 《Chinese Journal of Lasers》2000,9(2):103-106
1 IntroductionNd: YLF crystal belongs tO the tetragonal syStem with space group 1 4/ a and it isa POSitive single axial crystal in optics. The life-time Of fluorescence of Nd3 ions incaF crystal is lOnger, being 520 us. Therefore, it is a strong candidate for lasermedium of high stored energy and CW lasers. Especially, the therrnai focal distance OfNd: YLF crystal is much longer than that of Nd: YAG crystal and' so the Nd: YLFcrystal is Particularly suitable for a laser in TEWo m… 相似文献
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Hiromitsu Kiriyama Narayanan Srinivasan Masato Ohmi Masanobu YAMANAKA Yasukazu Izawa Tatsuhiko Yamanaka Sadao Nakai Chiyoe Yamanaka 《Optical Review》1996,3(1):14-16
We measured the two-dimensional birefringence compensation in laser-diode (LD) pumped Nd:glass (HAP4) laser rods with a high-sensitivity polarimeter. The compensation was performed by inserting a 90° quartz rotator between two identical LD pumped Nd:glass rods with conductive cooling. A considerable reduction of birefringence loss from 9.8% to less than 0.9% after compensation was observed. 相似文献
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报道了一种利用激光二极管(LD)双端面泵浦的Nd:YAG激光晶体,Cr4+:YAG晶体被动调Q,LBO临界相位匹配腔内倍频的高转换效率的绿光激光器。分析了双端面泵浦YAG激光器的热效应,实验中LD双端面泵浦,采用U型平行平面腔结构对Nd:YAG进行传导冷却。当总泵浦光为33.8 W时,得到被动调Q频率10 KHz、功率8.21 W的线偏振基频光输出。6.72 W的绿光输出的倍频效率为86%,输出光束为基模,M2为1.4。实验表明双端面泵浦YAG倍频激光器具有很高的转换效率。 相似文献
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高效率LD端面抽运准连续355 nm激光器 总被引:1,自引:1,他引:0
报道了一台激光二极管(LD)端面抽运Nd:YVO4晶体腔内倍频和腔外和频相结合的声光调Q准连续355 nm 紫外激光器。采用LD端面抽运双侧翼键合YVO4基质的Nd:YVO4晶体,在腔内置入Ⅰ类相位匹配的LiB3O5(LBO)晶体进行倍频实现1 064 nm和532 nm双波长准连续激光输出,通过消色差透镜将双波长激光聚焦耦合到Ⅱ类相位匹配的LBO 晶体中进行和频,并采用双向和频光路,获得了高效率、高光束质量、高重复频率的准连续355 nm 紫外激光输出。在抽运功率为28.6 W、重复频率为20 kHz时,355 nm激光最大输出功率4.2 W,脉宽为20.6 ns,光-光转换效率为14.7%,激光器光束质量因子Mx2和My2分别为1.29和1.23。 相似文献
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报道了用两个1.5W激光二极管偏振耦合端面泵浦的声光调Q内腔倍频Nd:YAG激光器。输出532nm绿光重复频率1KHz时,最大峰值功率为2.23KW,最窄脉宽为18ns,平均功率40mW。最高重复频率30KHz。重复频率15kHZ时,最高平均率128mW。对声光调Q内倍频Nd:YAG激光器的动态特性进行了理论分析及计算。 相似文献