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...
| Published in: | Microwave and Optical Technology Letters |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
2007
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| Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-34548583498&doi=10.1002%2fmop.22750&partnerID=40&md5=108796b2b7b8e1ae6ae80a29bb11c1ab |
| 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. © 2007 Wiley Periodicals, Inc. |
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| ISSN: | 8952477 |
| DOI: | 10.1002/mop.22750 |