Lasers, Fiber Optics, and Communications

Double-pulse single-longitudinal-mode operation of injection-seeded laser using intracavity phase modulator

[+] Author Affiliations
Junxuan Zhang, Xiaolei Zhu, Huaguo Zang, Shiguang Li, Xiuhua Ma, Jiqiao Liu, Weibiao Chen

Chinese Academy of Sciences, Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Shanghai, China

Opt. Eng. 56(4), 046105 (Apr 17, 2017). doi:10.1117/1.OE.56.4.046105
History: Received December 28, 2016; Accepted March 27, 2017
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Abstract.  A single-longitudinal-mode (SLM) double-pulse injection-seeded neodymium-doped yttrium aluminium garnet (Nd:YAG) laser was established utilizing an RbTiOPO4 electro-optic crystal to modulate the optical path of the slave resonator for generating a resonance condition. The Q-switcher was fired twice during every pump period. This enabled the laser to emit a pair of SLM laser pulses with a time separation of 200  μs. Each pulse had a pulse energy of 13 mJ at 50-Hz repetition rate, pulse duration of 20±0.5  ns, and linewidth of 30±0.3  MHz (within 2 min). The beam quality factor of M2 was <1.22. A frequency jitter of 1.4 MHz was obtained within 2 min.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Junxuan Zhang ; Xiaolei Zhu ; Huaguo Zang ; Shiguang Li ; Xiuhua Ma, et al.
"Double-pulse single-longitudinal-mode operation of injection-seeded laser using intracavity phase modulator", Opt. Eng. 56(4), 046105 (Apr 17, 2017). ; http://dx.doi.org/10.1117/1.OE.56.4.046105


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