Abstract

A single-frequency Q-switched erbium-doped fiber ring laser is implemented for producing a single frequency with 25-Mhz laser linewidth, Q-switched pulses with a high peak power at 1557.5 nm. The single longitudinal mode is selected by a distributed Bragg reflector fiber laser, and a fiber-optic Mach-Zehnder interferometer acts as a Q-switch. The peak power and the average power of the Q-switched pulses vary with the repetition rate.

© 2003 Optical Society of America

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