Open AccessUltralow-repetition-rate, high-energy, polarization-maintaining, Er-doped, ultrashort-pulse fiber laser using single-wall-carbon-nanotube saturable absorber
Author(s) -
Yukiko Senoo,
Norihiko Nishizawa,
Youichi Sakakibara,
Kazuhiko Sumimura,
E. Itoga,
Hiromichi Kataura,
Kazuyoshi Itoh
Publication year - 2010
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.18.020673
Subject(s) - materials science , saturable absorption , fiber laser , optics , laser , carbon nanotube , fiber , polarization (electrochemistry) , ultrashort pulse , optoelectronics , nanotechnology , composite material , physics , chemistry
An ultralow-repetition-rate, all-polarization-maintaining (PM), Er-doped, ultrashort-pulse fiber laser was demonstrated using a single-wall-carbon-nanotube polyimide film. Using a ring cavity configuration, output pulses with pulse energy of 0.7-2.6 nJ were obtained at an ultralow repetition rate of 943-154 kHz for a fiber length of 0.1-1.3 km. A novel θ (theta) cavity configuration was proposed, which enabled us to reduce the required fiber length by half. A repetition rate of 132 kHz was achieved using this configuration with 909 m of PM fiber.