Harun, Sulaiman Wadi and Tamchek, Nizam and Ahmad, Harith (2003) Double Pass L-Band EDFA with Unpumped EDF. Journal of Optical Communications, 24 (5). pp. 189-191. ISSN 0173-4911, DOI https://doi.org/10.1515/JOC.2003.24.5.189.
Full text not available from this repository.Abstract
A new double pass long wavelength band erbium-doped fibre amplifier (L-band EDFA) with a further improved gain is demonstrated using double pass technique with a first 5 m of the EDF is unpumped. The wasted conventional band (C-band) backward amplified spontaneous emission (ASE) is 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 0.24 dB/mW to 0.40 dB/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 22.5 dB was observed at a signal wavelength of 1568 nm of while signal and pump powers were fixed at -30 dBm and 62 mW, respectively.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Erbium; Gain measurement; Pumping (laser); Semiconductor doping; Wavelength division multiplexing |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 11 Oct 2018 06:01 |
| Last Modified: | 11 Oct 2018 06:01 |
| URI: | http://eprints.um.edu.my/id/eprint/19633 |
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