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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 12 — Jun. 13, 2005
  • pp: 4519–4524

Low noise figure all-optical gain-clamped parallel C+L band Erbium-doped fiber amplifier using an interleaver

L. L. Yi, L. Zhan, C. S. Taung, S. Y. Luo, W. S. Hu, Y. K. Su, Y. X. Xia, and Lufeng Leng  »View Author Affiliations

Optics Express, Vol. 13, Issue 12, pp. 4519-4524 (2005)

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A low noise figure (NF), all-optical gain-clamped C+L band erbium-doped fiber amplifier (EDFA) has been demonstrated. A parallel configuration is employed to avoid the crosstalk between the C- and L-band signals. Half of the amplified spontaneous emission from the output signal is filtered by an interleaver and fed back to the parallel EDFA to form lasing cavity. Two lasers in the C- and L-band, respectively, formed in the cavity clamp the C- and L-band signals simultaneously. In the L-band, the double-pass configuration with a fiber Bragg grating is used to improve the gain and NF. Furthermore, co-propagation of the signal and the lasing power leads to a low NF, while the amplified signals are exported separately from the lasing power. Finally, a wide gain-clamping range up to -10dBm and ~5.5dB NF are obtained.

© 2005 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(140.4480) Lasers and laser optics : Optical amplifiers

ToC Category:
Research Papers

Original Manuscript: April 21, 2005
Revised Manuscript: May 24, 2005
Published: June 13, 2005

L. Yi, L. Zhan, C. Taung, S. Luo, W. Hu, Y. Su, Y. Xia, and Lufeng Leng, "Low noise figure all-optical gain-clamped parallel C+L band Erbium-doped fiber amplifier using an interleaver," Opt. Express 13, 4519-4524 (2005)

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