Chinese Optics Letters, 2018, 16 (3): 031402, Published Online: Jul. 13, 2018
Double Q -switched 946 nm laser with MgO:LN electro-optic crystal and MoSe2 saturable absorber
Abstract
We report a double Q -switched 946 nm laser with a magnesium-oxide-doped LiNbO 3 (MgO:LN) electro-optic (EO) crystal and a monolayer molybdenum diselenide (MoSe 2 ) saturable absorber (SA). A pulsed laser diode side-pumped long neodymium-doped yttrium aluminum garnet rod (φ 3 × 65 mm ) is used as the gain medium. Large pulse energy up to 3.15 mJ and peak power up to 346 kW are generated at the repetition rate of 550 Hz, corresponding to the beam quality factors of M x 2 = 3.849 , M y 2 = 3.868 . Monolayer MoSe 2 nanosheets applied in the experiment would be a promising SA for a passive Q -switching operation.
Bing Bai, Yang Bai, Diao Li, Yanxiao Sun, Jianlin Li, Jintao Bai. Double