Journal
OPTICAL ENGINEERING
Volume 55, Issue 8, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.OE.55.8.081305
Keywords
passively Q-switched; graphene oxide; Nd: GdTaO4; saturable absorber
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Funding
- National Natural Science Foundation of China [61275147, 11375081, 51172236]
- Natural Science Foundation of Shandong Province [ZR2014FL030]
- Special Construction Project Fund for Shandong Province Taishan Mountain Scholar
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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 mu J. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
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