Open AccessGaSb-based SESAM mode-locked Tm:YAG ceramic laser at 2 µm
Author(s) -
Alexander Gluth,
Yicheng Wang,
Valentín Petrov,
J. Paajaste,
Soile Suomalainen,
Antti Härkönen,
Mircea Guina,
Günter Steinmeyer,
Xavier Mateos,
S. Veronesi,
M. Tonelli,
Jiang Li,
Yubai Pan,
Jingkun Guo,
Uwe Griebner
Publication year - 2015
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.23.001361
Subject(s) - materials science , laser , optics , ceramic , mode locking , optoelectronics , pulse duration , continuous wave , fiber laser , physics , composite material
Tunable and mode-locked laser operation near 2 µm based on different Tm-doped YAG ceramics, 4 at.% and 10 at.%, is demonstrated. Several designs of GaSb-based surface-quantum-well SESAMs are characterized and studied as saturable absorbers for mode-locking. Best mode-locking performance was achieved using an antireflection-coated near-surface quantum-well SESAM, resulting in a pulse duration of ~3 ps and ~150 mW average output power at 89 MHz. All mode-locked Tm:YAG ceramic lasers operated at 2012 nm, with over 133 nm demonstrated tuning for continuous-wave operation.