An efficient EYDFA with a 54 dB small signal gain

An efficient EYDFA with a 54 dB small signal gain

An efficient erbium/ytterbium codoped fiber amplifier is demonstrated by using a dual-stage configuration with a midway optical isolator and a band-pass filter (BPF). The amplifier achieved a maximum low signal gain of 54 dB and a corresponding noise figure of 6.5 dB (1536 nm) using the input signal...

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Bibliographic Details
Main Authors: Muhd-Yassin, Shahrin Zen, Harun, Sulaiman Wadi, Abdul-Rashid, Hairul Azhar, Abd-Rahman, Mohd Kamil, Rahman, Faidz Abd, Ahmad, Harith
Format: Article
Published: John Wiley & Sons 2007
Subjects:
Q Science (General)
QC Physics
TK Electrical engineering. Electronics Nuclear engineering
Description
Summary:An efficient erbium/ytterbium codoped fiber amplifier is demonstrated by using a dual-stage configuration with a midway optical isolator and a band-pass filter (BPF). The amplifier achieved a maximum low signal gain of 54 dB and a corresponding noise figure of 6.5 dB (1536 nm) using the input signal power and total pump power of -50 dBm and 140 mW. respectively. The gain obtained by the amplifier was about 12.5 dB higher than the gain of a conventional single-stage amplifier whereas its noise figure was 3.5 dB lower. Both isolator and BPF contribute to gain and noise figure improvements by blocking backward and forward propagating amplified spontaneous emission.

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