Open AccessDiode-pumped 915-nm Pr:YLF laser passively mode-locked with a SESAM
Author(s) -
Saiyu Luo,
Zhiping Caï,
Huiying Xu,
Xuefeng Liu,
Hao Chen,
Yun Cao,
Li Li
Publication year - 2018
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.26.024695
Subject(s) - materials science , optics , laser , full width at half maximum , diode , praseodymium , slope efficiency , mode locking , yttrium , optoelectronics , continuous wave , pulse duration , semiconductor laser theory , pulse width modulation , fiber laser , wavelength , power (physics) , physics , metallurgy , oxide , quantum mechanics
A diode-pumped, passively mode-locked laser emitting at 915 nm with a praseodymium-doped yttrium lithium fluoride (Pr:YLF) crystal was demonstrated for the first time, to the best of our knowledge. Utilizing two polarization-combined blue pumping laser diodes (LDs) and a semiconductor saturable absorber mirror (SESAM), stable continuous-wave (CW) mode-locking operations were achieved with a maximum average output power of 408 mW and a slope efficiency of 10.8%. Laser pulse durations of 15 ps were obtained with a spectral full width at half maximum (FWHM) of 0.15 nm and a repetition rate of 1.53 GHz.