We present a novel high-energy, single-mode, all-fiber-based master-oscillator-power-amplifier (MOPA) laser system operating in the C-band with 3.3-ns pulses and a very widely tunable repetition rate, ranging from 30 kHz to 50 MHz. The laser with a maximum pulse energy of 25 \muJ and a repetition rate of 30 kHz is obtained at a wavelength of 1548 nm by using a double-clad, single-mode, Er:Yb co-doped fiber power amplifier.
© 2009 Chinese Optics Letters
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3500) Lasers and laser optics : Lasers, erbium
Cunxiao Gao, Shaolan Zhu, Wei Zhao, Zongying Cao, and Zhi Yang, "Eye-safe, high-energy, single-mode all-fiber laser with widely tunable repetition rate," Chin. Opt. Lett. 7, 611-613 (2009)