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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 4 — Feb. 19, 2007
  • pp: 1454–1460

Double-pass high-gain low-noise EDFA over Sand C+L-bands by tunable fundamental-mode leakage loss

Chi-Ming Hung, Nan-Kuang Chen, Yinchieh Lai, and Sien Chi  »View Author Affiliations


Optics Express, Vol. 15, Issue 4, pp. 1454-1460 (2007)
http://dx.doi.org/10.1364/OE.15.001454


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Abstract

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.

© 2007 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2410) Fiber optics and optical communications : Fibers, erbium
(260.2030) Physical optics : Dispersion

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 4, 2007
Revised Manuscript: February 8, 2007
Manuscript Accepted: February 8, 2007
Published: February 19, 2007

Citation
Chi-Ming Hung, Nan-Kuang Chen, Yinchieh Lai, and Sien Chi, "Double-pass high-gain low-noise EDFA over S- and C+L-bands by tunable fundamental-mode leakage loss," Opt. Express 15, 1454-1460 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-4-1454


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References

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