Dynamic-Performance Characterization of C-Band EDFA
Using ASE-Power Peak-Selective Feedback Gain-Clamping¹

J. M. Lin and W. J. Ho*

Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, 10608 Taiwan

*e-mail: wjho@ntut.edu.tw

Received November 4, 2011; in final form, November 11, 2011; published online March 6, 2012

Abstract—We propose and demonstrate a C-band Erbium-doped fiber amplifier (EDFA) using amplified spon-
taneous emission (ASE) power peaking-selective and feedback to achieve highly stabilized and wide dynamic
range gain clamping performances. The gain of 16.20 0.13 dB is obtained with the input signal power
dynamic range of 30 dB and the maximum noise figure (NF) was 6.6 dB with the input signal power from –35
to –10 dBm. To investigate the gain variation for the probe signals, we applied a saturation tone signal to sim-
ulate 16-channel DWDM signals as it is added (dropped) into (from) EDFA. The gain variation of the proposed
scheme at a appropriate ring-cavity loss (VOA = 5 dB) is less than 0.13 dB for the input signal power from –35
to –5 dBm and wavelength from 1530 to 1564 nm.

10.1134/S1054660X1204010X

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.