工作在1341 nm的LD纵向抽运腔倒空锁模Nd:YAP激光器

报道了工作在1341 nm的激光二极管(LD)纵向抽运主被动锁模Nd:YAP激光器。该激光器采用Nd:YAP晶体作为增益介质,可饱和吸收体V3+:YAG作为被动锁模器件,声光调制器作为主动锁模器件。在抽运能量50 mJ,抽运频率10 Hz的情况下获得了0.82 mJ的脉冲串输出。该脉冲串的半峰全宽为570 ns,每个脉冲间的间隔为7.7 ns,共包含约75个脉冲,单脉冲的平均能量为11 μJ。采用电光晶体RbTiOPO4(RTP)作腔倒空,获得了能量为160 μJ,脉宽为680 ps的单脉冲输出。采用InGaAs红外探测器测得光斑大小约为1.2 mm,激光传播因子M2约为1.5。

Abstract

A laser diode (LD) end pumped active- and passive- mode locked Nd:YAP laser at 1341 nm is reported. A Nd:YAP laser crystal is used as gain material. A saturable absorber V3+:YAG is used for passive mode locking and an acousto-optical modulator (AOM) is used for active mode locking. The output pulse train with a total energy of 0.82 mJ is obtained under the conditions of pump energy of 50 mJ and frequency of 10 Hz. The full-width at half-maximum (FWHM) is measured as 570 ns. The pulse repetition period is 7.7 ns. There are around 75 pulses in the pulse train,and each pulse has an average energy of about 11 μJ. An opto-electronic RbTiOPO4 (RTP) crystal works as a cavity dumper. A single pulse of 160 μJ with pulse duration of 680 ps is obtained. The laser beam diameter is measured as 1.2 mm and the beam propagation factor M2 is around 1.5 by using an InGaAs infrared detector.

参考文献

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汪莎, 陈军, 葛剑虹, 刘崇, . 工作在1341 nm的LD纵向抽运腔倒空锁模Nd:YAP激光器[J]. 中国激光, 2010, 37(8): 1925. Wang Sha, Chen Jun, Ge Jianhong, Liu Chong, H. J.. Cavity Dumping of a Mode Locked Nd:YAP Laser Working at 1341 nm[J]. Chinese Journal of Lasers, 2010, 37(8): 1925.

工作在1341 nm的LD纵向抽运腔倒空锁模Nd:YAP激光器

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