Passively Q-switched Nd:GdTaO 4 laser by graphene oxide saturable absorber
2015; SPIE; Volume: 55; Issue: 8 Linguagem: Inglês
10.1117/1.oe.55.8.081305
ISSN1560-2303
AutoresBingyuan Zhang, Qi Song, Guoju Wang, Yajing Gao, Qingli Zhang, Minghong Wang, Wenjun Wang,
Tópico(s)Photonic Crystal and Fiber Optics
ResumoWe experimentally demonstrated a laser diode-pumped Q-switched Nd:GdTaO4 crystal laser at 1066 nm using a multilayer graphene oxide as the saturable absorber (GOSA). The GOSA is fabricated by transferring the liquid-phase-exfoliated GO nanosheets onto a K9 glass substrate. When the GOSA was inserted into the plano–plano laser cavity, a stable Q-switched laser operation is achieved with a maximum average output power of 0.382 W and repetition rate of 362 kHz. The shortest pulse duration is 194 ns and the single pulse energy is about 1.05 μJ.
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