Title :
High power ytterbium fiber lasers at extremely long wavelengths by photonic bandgap fiber technology
Author :
Shirakawa, Akira ; Chen, Meishin ; Ueda, Ken-ichi ; Olausson, Christina B. ; Lyngsø, Jens K. ; Broeng, Jes
Author_Institution :
Inst. for Laser Sci., Univ. of Electro-Commun., Tokyo, Japan
Abstract :
Yb-doped photonic-bandgap fiber sources operating at the long-wavelength edge of the gain band are presented. Novel gain-profile engineering by the bandpass distributed filtering enables amplified-spontaneous-emission-free gain and power scaling to >;15dB and >;160W at 1178nm.
Keywords :
band-pass filters; fibre lasers; laser beams; photonic band gap; superradiance; ytterbium; JkJk:Yb; amplified spontaneous emission-free gain; bandpass distributed filtering; extremely long wavelengths; gain band; gain profile engineering; high power ytterbium fiber lasers; photonic bandgap fiber sources; photonic bandgap fiber technology; power scaling; wavelength 1178 nm; Fiber lasers; Filtering; Gain; Optical fiber amplifiers; Photonic band gap; Power amplifiers; Solids;
Conference_Titel :
Winter Topicals (WTM), 2011 IEEE
Conference_Location :
Keystone, CO
Print_ISBN :
978-1-4244-8428-7
DOI :
10.1109/PHOTWTM.2011.5730108
