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首页> 外文会议>Conference on Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies >Analysis of conversion efficiency of internal second-harmonic generation in InGaAs quantum-well laser diodes emitting around 960 nm
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Analysis of conversion efficiency of internal second-harmonic generation in InGaAs quantum-well laser diodes emitting around 960 nm

机译：Ingaas量子孔激光二极管中内部二次谐波发电转换效率分析左右960nm

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摘要

Based on the obtained experimental results in this paper we report some theoretical results concerning the realization of the phase-matching conditions for the internal second-harmonic generation in InGaAs quantum-well laser diodes emitting around 960 nm in order to enhance the conversion efficiency. The theoretical results obtained by numerical integration of the coupled amplitude equations corresponding to the fundamental and second liannonic concerning the interaction length and generation efficiency are in good agreement with the experimental data. The role of the phase-mismatching in the spectral distribution of the internal second-harmonic generation in the CW operation of the above mentiond lasers is also analysed. The emission of pairs of narrow blue-green peaks having perfectly symmetrical spectral positions with respect to the central peak of pure second-harmonic generation at 480 urn is most probably enhanced by a mechanism of reciprocal cancellation of the respective phase-mismatch vectors. The obtained results are important for the assessment of the relationship between the structural parameters of the laser and the conditions which contribute to the stimulation of second-order optical nonlinearities in the laser active region.
机译：本文基于所获得的实验结果，我们报告了关于在960nm大约960nm的Ingaas量子孔激光二极管中实现内部二次谐波产生的相位匹配条件的一些理论结果，以提高转换效率。通过对应于相互作用长度和发电效率的基本和第二联尼克对应的耦合幅度方程的数值积分而获得的理论结果与实验数据吻合良好。还分析了在上述改变激光器的CW操作中内部二次谐波产生的频谱分布中的相位失配的作用。在480URN处具有相对于纯第二谐波产生的中心峰值具有完全对称的光谱位置的窄蓝绿峰的发射最可能通过相应的相位错配载体的往复式消除机制来增强。获得的结果对于评估激光的结构参数与有助于激光有源区域中二阶光学非线性的条件之间的关系是重要的。

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