Open AccessSpectroscopic characteristics, continuous-wave and mode-locking laser performances of Tm,Y:CaF_2 disordered crystal
Author(s) -
Lingchen Kong,
Zhen Qiao,
Guoqiang Xie,
Zhipeng Qin,
Beibei Zhao,
Hao Yu,
Liangbi Su,
Jingui Ma,
Peng Yuan,
Liejia Qian
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.25.021267
Subject(s) - optics , materials science , mode locking , laser , wavelength , continuous wave , pulse duration , slope efficiency , pulse (music) , optoelectronics , fiber laser , physics , detector
The spectroscopic characteristics, continuous-wave (CW) and mode-locking laser performances of Tm,Y:CaF 2 disordered crystal were studied. A maximum CW output power of 586 mW was obtained with a slope efficiency of 26%. The Tm,Y:CaF 2 mode-locked laser could operate in two states: single-wavelength mode locking or dual-wavelength synchronous mode locking. The single-wavelength mode-locked laser generated pulses with pulse duration of 22 ps, repetition rate of 99 MHz, and pulse energy of 1.15 nJ at 1887 nm. Alternatively, the laser could also be mode-locked simultaneously at 1880.7 nm and 1889.0 nm wavelengths. The beating modulation in autocorrelation trace shows that the dual-wavelength pulses were temporally synchronous.