Investigation of gain recovery for inas/gaas quantum dot semiconductor optical amplifiers by rate equation simulation
文献类型：期刊论文
| 作者 | Xiao, Jin-Long; Yang, Yue-De; Huang, Yong-Zhen |
| 刊名 | Optical and quantum electronics
 |
| 出版日期 | 2009-06-01 |
| 卷号 | 41期号:8页码:613-626 |
| 关键词 | Quantum dots (qds) Semiconductor optical amplifiers (soas) Gain recovery |
| ISSN号 | 0306-8919 |
| DOI | 10.1007/s11082-010-9368-0 |
| 通讯作者 | Xiao, jin-long(jlxiao@semi.ac.cn) |
| 英文摘要 | The gain recoveries in quantum dot semiconductor optical amplifiers (qd soas) are numerically studied by rate equation simulation. similar to the optical pump-probe experiment, the injection of double 150 fs optical pulses is used to simulate the gain recovery of a weak continuous signal under different injection levels, inhomogeneous broadenings, detuning wavelengths, and pulse signal energies for the qd soas. the obtained gain recoveries are then fitted by a response function with multiple exponential terms to determine the response times. the gain recovery can be described by three exponential terms with the time constants, which can be explained as carrier relaxation from the excited state to the ground state, carrier captured by the excited state from the wetting layer, and the supply of the wetting layer carriers. the fitted lifetimes decrease with the increase of the injection currents under gain unsaturation, slightly decrease with the decrease of inhomogeneous broadening of qds, and increase with the increase of detuning wavelength between continuous signal and pulse signal and the increase of the pulse energy. |
| WOS关键词 | CARRIER DISTRIBUTION ; DYNAMICS ; SATURATION ; RELAXATION ; LASERS ; MODEL |
| WOS研究方向 | Engineering ; Optics |
| WOS类目 | Engineering, Electrical & Electronic ; Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000280082900004 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427685 |
| 专题 | 半导体研究所 |
| 通讯作者 | Xiao, Jin-Long |
| 作者单位 | Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Jin-Long,Yang, Yue-De,Huang, Yong-Zhen. Investigation of gain recovery for inas/gaas quantum dot semiconductor optical amplifiers by rate equation simulation[J]. Optical and quantum electronics,2009,41(8):613-626. |
| APA | Xiao, Jin-Long,Yang, Yue-De,&Huang, Yong-Zhen.(2009).Investigation of gain recovery for inas/gaas quantum dot semiconductor optical amplifiers by rate equation simulation.Optical and quantum electronics,41(8),613-626. |
| MLA | Xiao, Jin-Long,et al."Investigation of gain recovery for inas/gaas quantum dot semiconductor optical amplifiers by rate equation simulation".Optical and quantum electronics 41.8(2009):613-626. |
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来源：半导体研究所
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