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Self-balanced Q- and gain-switched erbium all-fiber laser

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Author(s): Tzong-Yow Tsai | Hao-Hsiang Ma | Yen-Cheng Fang | Hong-Xi Tsao | Shih-Ting Lin

Journal: AIP Advances
ISSN 2158-3226

Volume: 1;
Issue: 3;
Start page: 032155;
Date: 2011;
Original page

ABSTRACT
We demonstrate a 980-nm CW-pumped fully passive pulsed all-Er3+ all-fiber laser, self-balancing between being Q- and gain-switched at S and L bands. The laser was passively Q-switched at 1510 nm with the saturable absorber in an intra-cavity gain-switched at 1570 nm. The time spacing between the Q- and gain-switched pulse peaks was steadily 0.92 or 2.75 μs depending on the absorber lengths. Sequential 1510-nm pulsing with a pulse energy of 3.8 μJ and a pulse width of 280 ns at a repetition rate of 1.7 kHz was achieved with a pump power of 175 mW.

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