Self-Pulsation of a Nd3+-Doped Fluoride Fiber Laser Using Tm3+-Doped Fiber as a Saturable Absorber

Kiyotaka SASAGAWA  Kazushi KUSAWAKE  Keiichiro KAGAWA  Jun OHTA  Masahiro NUNOSHITA  

IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.5   pp.719-724
Publication Date: 2003/05/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
passive Q-switched laser,  neodymium doped fluoride fiber,  thulium doped fluoride fiber,  saturable absorber,  

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Self-pulsation of Nd3+-doped fluoride fiber laser is experimentally and theoretically demonstrated using a Tm3+-doped fluoride fiber pumped at 808 nm as a saturable absorber. Self-pulsation at finite pump power predicted by linear stability analysis is confirmed through experiments, achieving a pulse width and peak power of 4.5µs and 1.5mW when the Nd3+-doped fiber was pumped at 230mW.