Open AccessPassively Q-switched Ho,Pr:LiLuF_4 laser with graphitic carbon nitride nanosheet film
Author(s) -
Mingqi Fan,
Tao Li,
Guiqiu Li,
Shengzhi Zhao,
Kejian Yang,
Shuaiyi Zhang,
Baitao Zhang,
Jianqiu Xu,
Christian Kränkel
Publication year - 2017
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.25.012796
Subject(s) - materials science , nanosheet , saturable absorption , optics , laser , output coupler , pulse duration , yttrium , nitride , optoelectronics , wavelength , carbon nitride , pulse (music) , fiber laser , layer (electronics) , composite material , nanotechnology , oxide , biochemistry , catalysis , physics , chemistry , resonator , photocatalysis , metallurgy , detector
A few-layer graphitic carbon nitride (g-CN) nanosheet film on an yttrium aluminum garnet substrate was fabricated and employed as saturable absorber for a passively Q-switched Ho,Pr:LiLuF 4 laser at 2.95 μm. Under an absorbed pump power of 3.89 W at a pump wavelength of 1.15 μm, a maximum average output power of 101 mW was realized with a pulse duration of 420 ns and a repetition rate of 93 kHz. Even shorter pulse durations of 385 ns were obtained at a reduced output coupler transmission.