Open AccessGeneration of 190 fs optical pulses from a mode-locked Yb, Na: CaF2 laser
Author(s) -
Wenjun Ge,
Li Chai,
Minglie Hu,
Qingyue Wang,
Su Liang-Bi,
Hongjun Liu,
Lihe Zheng,
Jing Xu
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.014213
Subject(s) - laser , optics , materials science , femtosecond , power (physics) , output coupler , wavelength , pulse (music) , crystal (programming language) , continuous wave , optoelectronics , physics , quantum mechanics , detector , computer science , programming language
In the paper, the demonstration of a high-power LD-pumped Yb, Na:CaF2 femtosecond laser is presented, which the cavity is optimized concerning the numerical simulation for the thermal lens effect. With a 2% output coupler, a continuous-wave mode-locked pulse train with a pulsewidth of 190 fs, the average output power of 503 mW, the center wavelength at 1034 nm and a repetition frequency of 82.4 MHz is obtained under the absorbed pump power of 7.8 W. If other forms of output are recorded, such as the reflection of the crystal surface, the total output power is 905 mW.