Diode-pumped Alexandrite laser with passive SESAM Q-switching and wavelength tunability
Diode-pumped Alexandrite laser with passive SESAM Q-switching and wavelength tunability
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DOI：
10.1016/j.optcom.2017.09.047
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发表时间：
2018-03
影响因子：
2.4
通讯作者：
U. Paralı;Xin Sheng;A. Minassian;Goronwy Tawy;Juna Sathian;G. Thomas;M. Damzen
中科院分区：
文献类型：
--
作者：
U. Paralı;Xin Sheng;A. Minassian;Goronwy Tawy;Juna Sathian;G. Thomas;M. Damzen
报道了利用半导体可饱和吸收镜(SESAM)实现波长可调谐的被动调Q红光二极管端面泵浦的紫翠宝石激光器。本文介绍了连续二极管泵浦的线性腔和X腔结构的紫翠宝石激光器的被动SESAM调Q和波长调谐的研究结果。在线性腔结构中，获得了重复频率高达27 kHz的TEM00基模脉冲运转，最大平均功率为41 mW。产生的最短脉冲为550 ns(半高宽)，调Q波长调谐范围为740~755 nm。在X腔结构中，获得了较高的平均功率达73 mW，在11.2μ重复频率下获得了较高的脉冲能量6.5 kJ，在基模TEM00模式下获得了良好的空间质量M2；1.1.调Q波长调谐范围为775~781 nm。
We report the first experimental demonstration of a wavelength tunable passively Q-switched red-diode-end pumped Alexandrite laser using a semiconductor saturable absorber mirror (SESAM). We present the results of the study of passive SESAM Q-switching and wavelength-tuning in continuous diode-pumped Alexandrite lasers in both linear cavity and X-cavity configurations. In the linear cavity configuration, pulsed operation up to 27 kHz repetition rate in fundamental TEM 00 mode was achieved and maximum average power was 41 mW. The shortest pulse generated was 550 ns (FWHM) and the Q-switched wavelength tuning band spanned was between 740 nm and 755 nm. In the X-cavity configuration, a higher average power up to 73 mW, and obtained with higher pulse energy 6. 5 μ J at 11.2 kHz repetition rate, in fundamental TEM 00 mode with excellent spatial quality M 2< 1. 1. The Q-switched wavelength tuning band spanned was between 775 nm and 781 nm.