期刊
OPTICS EXPRESS
卷 17, 期 3, 页码 1429-1434出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.17.001429
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资金
- National Science Council of Taiwan [NSC-97-2221-E-006-023]
- NCKU Project of Promoting Academic Excellence & Developing World Class Research [D97-3360]
We propose a simple design of a saturable absorber Q-switched all-fiber ring laser. By locating a saturable absorber fiber in the intensity-enhanced section of a ring resonator, the laser is passively Q-switched. A set of location-dependent rate equations is established for Q-switching modeling. The design has been numerically and experimentally demonstrated using Er3+-doped fiber at the emission wavelength of 1550 nm. A single-mode Q-switched pulse with pulse energy of 0.37 mu J and pulse duration of 218 ns was achieved with 980-nm pump power near 7 mW. (C) 2009 Optical Society of America
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