Journal article
Theory of Pulse Train Amplification Without Patterning Effects in Quantum Dot Semiconductor Optical Amplifiers
A theory for pulse amplification and saturation in quantum dot (QD) semiconductor optical amplifiers (SOAs) is developed. In particular, the maximum bit rate at which a data stream of pulses can be amplified without significant patterning effects is investigated. Simple expressions are derived that clearly show the dependence of the maximum bit rate on material and device parameters.
A comparative analysis of QD, quantum well (QW), and bulk SOAs shows that QD SOAs may have superior properties; calculations predict patterning-free amplification up to bit rates of 150–200 Gb/s with pulse output energies of 0.2–0.4 pJ. The superiority of QD SOAs is based on: 1) the faster achievement of the regime of maximum gain in QD SOAs compared to QW and bulk SOAs and 2) the lower effective cross section of photon-carrier interaction in QDs.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2004 |
| Pages: | 306-320 |
| ISSN: | 15581713 and 00189197 |
| Types: | Journal article |
| DOI: | 10.1109/JQE.2003.823032 |
| ORCIDs: | Mørk, Jesper |
Bit rate Numerical simulation Optical pulses Optical pumping Optical signal processing Pulse amplifiers QD SOA Quantum dots Quantum mechanics Semiconductor optical amplifiers Stimulated emission bit rate optical pulse generation patterning-free amplification photon-carrier interaction pulse saturation pulse train amplification quantum dot lasers quantum-dot semiconductor amplifiers semiconductor optical amplifiers semiconductor quantum dots
