High-power passively continuous-wave and Q-switching mode-locked Nd:LuVO_4 laser by few-layer graphene-oxide films | Zendy

Hou-Ren Chen | Zendy; Chih-Ya Tsai | Zendy; Hsin-Ming Cheng | Zendy; Kuei-Huei Lin | Zendy; ChyongHua Chen | Zendy; Wen–Feng Hsieh | Zendy

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High-power passively continuous-wave and Q-switching mode-locked Nd:LuVO_4 laser by few-layer graphene-oxide films

Author(s) -

Hou-Ren Chen,

Chih-Ya Tsai,

Hsin-Ming Cheng,

Kuei-Huei Lin,

ChyongHua Chen,

Wen–Feng Hsieh

Publication year - 2016

Publication title -

optical materials express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.925

H-Index - 66

ISSN - 2159-3930

DOI - 10.1364/ome.6.003927

Subject(s) - materials science , continuous wave , transmittance , graphene , saturable absorption , laser , mode locking , oxide , optoelectronics , optics , slope efficiency , pulse (music) , pulse width modulation , pulse duration , q switching , power (physics) , fiber laser , nanotechnology , physics , wavelength , detector , quantum mechanics , metallurgy

Using a series of different concentration polymer-free graphene oxide (GO) films as saturable absorbers (SAs), we demonstrate high-power passively continuous-wave mode-locking (CW-ML) and Q-switching mode-locking (QS-ML) for a Nd:LuVO4 laser at 1 μm. CW-ML pulses of 6.62 ps with maximum output power of 3.89 W have been achieved to give the highest pulse peak power of 4.85 kW and pulse energy of 32.14 nJ under 15-W pumping by using SAs of 84.4% transmittance. Using SAs with a lower transmittance having a larger modulation depth of 75.9% and 63.4%, we obtain both the CW-ML pulses of 4.85-ps and QS-ML pulses with 2.73 W and 1.92 W output powers, respectively.

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