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基于半导体光放大器的非相干光源抗反膜的优化设计 被引量:1

Optimal Design of Antireflection Coating for Flat and Wideband Incoherent Optical Sources Based on a Semiconductor Optical Amplifier
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摘要 对半导体光放大器(SOA)放大的自发发射(ASE)谱进行了实验和理论研究,并且分析了SOA端面反射率对ASE谱的谱宽以及平坦度的影响.结果表明,不恰当的抗反膜会严重减小输出光谱的带宽;而在采用具有宽带材料增益谱的有源区基础上,结合抗反膜的优化设计,则可以获得既宽又平坦的非相干光源. The output amplified spontaneous emission (ASE) spectrum from a semiconductor optical amplifier (SOA) is studied theoretically and experimentally. The effect of facet reflectivity on the bandwidth and flatness of the ASE spectrum is investigated,and it is found that an improper antireflection coating narrows the bandwidth of the ASE spectrum. For an SOA with an active region with a wide material gain spectrum,an optimal antireflection coating helps to realize an SOA-based incoherent optical source with a high bandwidth and good flatness.
出处 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2006年第8期1471-1475,共5页 半导体学报(英文版)
基金 国家自然科学基金资助项目(批准号:60577007 60407001)~~
关键词 半导体光放大器 非相干光源 带宽 平坦度 抗反膜 semiconductor optical amplifier incoherent optical source bandwidth flatness antireflection coating
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参考文献7

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