Open AccessDual-wavelength synchronously Q-switched solid-state laser with multi-layered graphene as saturable absorber
Author(s) -
Yongguang Zhao,
Xianlei Li,
Miaomiao Xu,
Haohai Yu,
Yongzhong Wu,
Zhengping Wang,
Xiaopeng Hao,
Xinguang Xu
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.003516
Subject(s) - saturable absorption , materials science , laser , graphene , optics , wavelength , optoelectronics , crystal (programming language) , q switching , diode , mode locking , fiber laser , physics , nanotechnology , computer science , programming language
Using multilayered graphene as the saturable absorber (SA), Nd:LYSO crystal as the laser material, we demonstrated a laser-diode (LD) pumped, dual-wavelength passively Q-switched solid-state laser. The maximum average output power is 1.8 W, the largest pulse energy and highest peak power is 11.3 μJ, 118 W, respectively. As we have known, they are the best results for passively Q-switched operation of graphene. The pulse laser is strong enough to realize extra-cavity frequency conversions. With a KTP crystal as the sum-frequency generator, the dual wavelengths are proved to be well time overlapped, which manifests the synchronous modulation to the dual-wavelength with multi-layered graphene.