Highly saturated EDFA for gain clamping operation

Document Type

Article

Publication Date

1-1-2007

Abstract

A highly saturated erbium-doped fiber amplifier (EDFA) that can be used for gain-clamping is demonstrated. This amplifier utilizes a short length of active fiber to provide a small but maximum gain and a high pump power to enhance the gain dynamic range. The gain for two simultaneous equal strength input signal channels is clamped at 19.3 dB from -34 dBm to -14 dBm with gain variation of less than 1 dB. The corresponding noise figure is obtained at 3.4 dB, which is slightly lower compared with the normal EDFA. This amplifier is expected to have a low transient power excursion since no compensating light is used inside the system.

Keywords

Erbium, Gain clamping, Optical amplifier

Publication Title

Microwave and Optical Technology Letters

ISSN

0895-2477

Divisions

fac_eng,PHYSICS

Volume

49

Issue

8

Publisher

John Wiley & Sons

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