Abstract

A novel all-fiber passively $Q$-switched erbium laser with a ${\mathrm{Co}}^{2+}:\mathrm{ZnSe}$ crystal as a saturable absorber is demonstrated experimentally. A pump power threshold of 20.5 mW, which the authors believe is the lowest to date, has been measured. Giant pulses with energy of 3.6 nJ and peak power of 0.7 mW have been obtained.

© 2001 Optical Society of America

Cw-pumped erbium-doped fiber laser passively Q switched with Co²⁺:ZnSe crystal: modeling and experimental study

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