Open AccessAll-polarization-maintaining Er-doped ultrashort-pulse fiber laser using carbon nanotube saturable absorber
Author(s) -
Norihiko Nishizawa,
Yasunobu Seno,
Kazuhiko Sumimura,
Youichi Sakakibara,
E. Itoga,
Hiromichi Kataura,
Kazuyoshi Itoh
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.009429
Subject(s) - materials science , saturable absorption , fiber laser , optics , ultrashort pulse , laser , femtosecond pulse shaping , carbon nanotube , mode locking , polarization (electrochemistry) , pulse duration , optoelectronics , physics , nanotechnology , chemistry
We present an all-polarization-maintaining Er-doped ultrashort-pulse fiber laser using a single-wall carbon nanotube polyimide nanocomposite saturable absorber. The maximum average power for single-pulse operation is 4.8 mW, and the repetition frequency is 41.3 MHz. Self-start and stable mode-locking operation is achieved. The RF amplitude noise is also examined and it is confirmed that the noise figure is as low as that of a solid-state laser. Using a polarization-maintaining anomalous dispersive fiber, a 314 fs output pulse is compressed to 107 fs via higher-order soliton compression. The peak power of the compressed pulse is up to 1.1 kW.