Acta Photonica Sinica, Volume. 47, Issue 5, 514002(2018)
Active-passive Double Q-switched 946 nm Laser with MgO∶LiNbO3 Electro-optic Crystal and MoSe2 Saturable Absorber
An active-passive double Q-switched 946 nm laser was reported which with a double 45° cut-magnesium oxide doped LiNbO3 electro-optic crystal and a monolayer molybdenum selenide saturable absorber. In order to obtain 946 nm laser pulses with high energy and high peak power, a pulsed laser diode side-pumped long Nd∶ YAG rod is used as the gain medium in a folded biconcave cavity. Output pulses with maximum pulse energy and peak power up to 3.15 mJ and 346 kW were obtained, corresponding to 550 Hz repetition rate and 9.1 ns pulse duration at 946 nm. Peak to peak instabilities of pulse width and pulse energy were ±2.87% and ±3.42%, beam quality factors were M2x=3.851 and M2y=3.870.
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LI Jian-lin, LEI Guang-zhi, BAI Yang, BAI Bing, SUN Yan-xiao. Active-passive Double Q-switched 946 nm Laser with MgO∶LiNbO3 Electro-optic Crystal and MoSe2 Saturable Absorber[J]. Acta Photonica Sinica, 2018, 47(5): 514002
Received: Dec. 18, 2017
Accepted: --
Published Online: Sep. 7, 2018
The Author Email: Jian-lin LI (bys627@163.com)