A novel design of bi-directional silica-based erbium-doped fibre amplifier for broadband WDM transmissions
A new method for a broadband amplification based on erbium-doped fibre amplifier was developed using only a single laser diode pumped at 1480 nm. A dual-stage amplifier was employed where the first stage provides simultaneous bi-directional amplification of conventional- and long-band signals. The u...
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| Main Authors: | , , , , |
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| Format: | Article |
| Published: |
Elsevier
2001
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/4703/ https://doi.org/10.1016/S0030-4018(00)01121-4 |
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| Summary: | A new method for a broadband amplification based on erbium-doped fibre amplifier was developed using only a single laser diode pumped at 1480 nm. A dual-stage amplifier was employed where the first stage provides simultaneous bi-directional amplification of conventional- and long-band signals. The utilisation of unused amplified spontaneous emission and remnant pump power from the first stage enables realisation of high gain for the long-band signals in the second stage. Amplification of wavelength division multiplexing systems (two and four channels) was successfully demonstrated with an average gain of 22 dB and a noise figure less than 7 dB. (C) 2001 Elsevier Science B.V. All rights reserved. |
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