Open AccessSingle-walled carbon-nanotube saturable absorber assisted Kerr-lens mode-locked Tm:MgWO4 laser
Author(s) -
Li Wang,
Weidong Chen,
Yongguang Zhao,
Yicheng Wang,
Zhongben Pan,
Haifeng Lin,
Ge Zhang,
Lizhen Zhang,
Zhoubin Lin,
Jı Eun Bae,
Tae Gwan Park,
Fabıan Rotermund,
Pavel Loiko,
Xavier Mateos,
Mark Mero,
Uwe Griebner,
Valentin Petrov
Publication year - 2020
Publication title -
optics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.411288
Subject(s) - saturable absorption , optics , materials science , pulse duration , mode locking , laser , kerr effect , carbon nanotube , lens (geology) , fiber laser , optoelectronics , physics , nanotechnology , nonlinear system , quantum mechanics
We demonstrate sub-100-fs Kerr-lens mode-locking of a T m : M g W O 4 laser emitting at ∼2µ m assisted by a single-walled carbon-nanotube saturable absorber. A maximum average output power of 100 mW is achieved with pulse duration of 89 fs at a pulse repetition rate of ∼86 M H z . The shortest pulse duration derived from frequency-resolved optical gating amounts to 76 fs at 2037 nm, corresponding to nearly bandwidth-limited pulses. To the best of our knowledge, these are the shortest pulses generated from any Tm-doped tungstate crystal and the first report on saturable absorber assisted Kerr-lens mode-locking of a Tm laser at ∼2µ m .
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