Kharraz, O. M. and Supa’at, A. S. M. and Mahdi, M. A. (2018) Compensation of carrier lifetime in double-pass semiconductor optical amplifiers. Optics Communications, 420 . pp. 116-121. ISSN 0030-4018
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Official URL: http://dx.doi.org/10.1016/j.optcom.2018.03.053
Abstract
Bi-directional light propagation is expected to enable enhanced functionality of all-optical signal processing operations compared to unidirectional approaches. In this work, we report on compensation of slow gain recovery in semiconductor optical amplifiers (SOAs) in a double-pass condition. The unsaturated gain of the employed SOA is increased by 12.6 dB, and the corresponding normalized conjugate output of four-wave mixing is enhanced by 16.3 dB. The theory attributes this efficiency improvement to the unsaturated gain enlargement which, in turn, compensates for the inherently long carrier lifetimes of SOAs by 50%. The saturation output power remains virtually unchanged.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Carrier lifetime, Double-pass |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Electrical Engineering |
| ID Code: | 85726 |
| Deposited By: | Widya Wahid |
| Deposited On: | 23 Jul 2020 07:12 |
| Last Modified: | 23 Jul 2020 07:12 |
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