Double pass L-band EDFA with an improved gain coefficient

被引：0
|
作者：
Ahmad, H [1 ]
Harun, SW [1 ]
机构：
[1] Univ Malaya, Fac Sci, Dept Phys, Kuala Lumpur 50603, Malaysia
来源：
APCC 2003: 9TH ASIA-PACIFIC CONFERENCE ON COMMUNICATION, VOLS 1-3, PROCEEDINGS | 2003年
关键词：
erbium-doped fiber amplifier; L-band EDFA; double-pass EDFA; gain enhancement;
D O I：
10.1109/APCC.2003.1274304
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A new double pass long wavelength band erbium-doped fibre amplifier (L-band EDFA) with an improved gain is demonstrated by unpumping of the first 5m of the EDF. The wasted conventional band (C-band) backward amplified spontaneous emission (ASE) was used as a secondary pump source for the unpumped EDF. Our experimental results have shown that, compared to a conventional double pass amplifier, the gain coefficient can be improved considerably from 0.24dB/mW to 0.40dB/mW. The new amplifier uses only 67% of the pump power to achieve a gain value equal to that for the conventional amplifier. The maximum gain enhancement of 22.5dB was observed at a signal wavelength of 1568nm of while signal and pump powers were fixed at -30dBm and 62mW, respectively.
引用
收藏
页码：31 / 33
页数：3
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