Title :
Watt-Level 100-nm Tunable 3- μm Fiber Laser
Author :
Zhu, Xiushan ; Jain, Ravi
Author_Institution :
Univ. of New Mexico, Albuquerque
Abstract :
Watt-level erbium-praseodymium codoped ZBLAN midinfrared fiber laser with 100-nm continuously wavelength-tunable range (2.7-2.8 m) is demonstrated. Continuous-wave output of 1 W with a linewidth of 1.8 GHz over the entire tuning range is affordable. Owing to relatively small residual populations in the lower laser level I of Er ions in the Er-Pr-codoped system, the wavelength-tunable range shrinking with increasing pump power, which always happens in tunable singly Er-doped ZBLAN fiber lasers, was not observed in this tunable Er-Pr-codoped fiber laser.
Keywords :
aluminium compounds; barium compounds; erbium; fibre lasers; infrared sources; lanthanum compounds; laser beams; laser tuning; optical pumping; praseodymium; sodium compounds; zirconium compounds; ZBLAN:Er,Pr; continuous wavelength-tunable range; continuous-wave output; laser level; pump power; residual populations; watt-level erbium-praseodymium codoped ZBLAN midinfrared fiber laser; wavelength 2.7 mum to 2.8 mum; wavelength-tunable range shrinking; Erbium-doped fiber lasers; Fiber lasers; Gas lasers; Laser tuning; Optical fibers; Pump lasers; Quantum cascade lasers; Semiconductor lasers; Solid lasers; Tunable circuits and devices; Infrared lasers; laser tuning; optical fiber lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.912495
