High gain Er3+-doped fiber amplifier with double-pass preamplification stage
A new architecture of dual-stage erbium-doped fiber amplifier with double-pass preamplification is successfally demonstrated A maximum gain of 52 dB is obtained at -50-dBm signal power with 1550-nm signal wavelength. An efficient-filtering of amplified spontaneous emission improves gain at the signa...
| Main Authors: | , , |
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| Format: | Article |
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2006
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| Subjects: | |
| Online Access: | http://shdl.mmu.edu.my/1974/ |
| Summary: | A new architecture of dual-stage erbium-doped fiber amplifier with double-pass preamplification is successfally demonstrated A maximum gain of 52 dB is obtained at -50-dBm signal power with 1550-nm signal wavelength. An efficient-filtering of amplified spontaneous emission improves gain at the signal wavelength up to 18 dB in the double-pass amplifier section The noise-figure penalty is very minimal in the small-signal range, compared to the dual-stage amplifier without bandpass filters. (c) 2006 Wiley Periodicals, Inc. |
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