Open AccessVisible ns‐pulse laser oscillation in Pr‐doped double‐clad structured waterproof fluoride glass fibre with SESAM
Author(s) -
Kajikawa Shota,
Yoshida Minoru,
Motokoshi Shinji,
Ishii Osamu,
Yamazaki Masaaki,
Fujimoto Yasushi
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0258
Subject(s) - materials science , doping , fluoride , laser , pulse (music) , oscillation (cell signaling) , fiber laser , optics , optoelectronics , chemistry , physics , inorganic chemistry , biochemistry , detector , wavelength
A visible Q‐switched pulse train at 639 nm was successfully generated in a Pr‐doped double‐clad structured waterproof fluoride glass fibre with a semiconductor saturable absorber mirror. The slope efficiency was calculated as 36.3%. The pulse duration and the radio frequency were measured as 270 ns and 107 kHz at 596 mW of absorbed power, respectively. The pulse energy and the pulse peak power were calculated as 1.32 μJ and 4.87 W, respectively.