標題: Double-pass high-gain low-noise EDFA over Sand C+L-bands by tunable fundamental-mode leakage loss
作者: Hung, Chi-Ming
Chen, Nan-Kuang
Lai, Yinchieh
Sien, Chi
光電工程學系
Department of Photonics
公開日期: 19-Feb-2007
摘要: We demonstrate a high-gain low-noise double-pass tunable EDFA over S- and C+L-bands by discretely introducing fundamental-mode leakage loss in a 16-m-long standard C-band Er3+-doped fiber. The amplified spontaneous emission at the wavelengths of longer than 1530 nm can be substantially attenuated by the ASE suppressing filters to maintain high population inversion and to squeeze out the optical gain for S- band signals. When the filters are disabled, the gain bandwidth immediately returns back to the C+L-bands. Under S-band operation, a 37 dB small signal gain and a minimum 4.84 dB noise figure at 1486.9 nm are achieved with a 980 nm pump power of 154 mW. (c) 2007 Optical Society of America.
URI: http://dx.doi.org/10.1364/OE.15.001454
http://hdl.handle.net/11536/11125
ISSN: 1094-4087
DOI: 10.1364/OE.15.001454
期刊: OPTICS EXPRESS
Volume: 15
Issue: 4
起始頁: 1454
結束頁: 1460
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