1. Passively Q-switched Nd:GdTaO4laser by graphene oxide saturable absorber
- Author
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Yajing Gao, Minghong Wang, Qingli Zhang, Bingyuan Zhang, Wenjun Wang, Guoju Wang, and Qi Song
- Subjects
Materials science ,Graphene ,business.industry ,General Engineering ,Oxide ,Pulse duration ,Saturable absorption ,Substrate (electronics) ,Laser ,Atomic and Molecular Physics, and Optics ,law.invention ,Crystal ,chemistry.chemical_compound ,Optics ,chemistry ,law ,Optical cavity ,business - Abstract
We 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.
- Published
- 2015