L-band gain clamped erbium-doped fiber amplifier incorporating a C/L-band WDM coupler

Document Type

Article

Publication Date

1-1-2004

Abstract

Gain clamping in a long-wavelength-band erbium-doped fiber amplifier (L-band EDFA) using a C/L-band WDM coupler is demonstrated. The gain for the amplifier is clamped at 15.5 dB with a gain variation of less than 0.2 dB from input signal power ranging from -40 to -14 dBm with almost negligible noise-figure penalty. However, the flatness of the gain spectrum is slightly degraded due to the nonoptimisation of the EDF length. The advantage of this configuration is that the oscillating light does not appear at the output port of the amplifier.

Keywords

C/L-band WDM coupler, Gain clamping, L-band EDFA, Optical amplifier, Ring amplifier

Divisions

fac_eng,PHYSICS

Publication Title

Microwave and Optical Technology Letters

Volume

40

Issue

4

Publisher

John Wiley & Sons

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