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Transient chirp in high-speed photonic-crystal quantum-dot lasers with controlled spontaneous emission

机译:可控自发发射的高速光子晶体量子点激光器中的瞬态chi

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摘要

We report on a series of experiments on the dynamics of spontaneous emission controlled nanolasers. The laser cavity is a photonic-crystal slab cavity, embedding self-assembled quantum dots as gain material. The implementation of cavity electrodynamics effects increases the large signal modulation bandwidth significantly, with measured modulation speeds of the order of 10 GHz while keeping an extinction ratio of 19 dB. A linear transient wavelength shift is reported, corresponding to a chirp of less than 100 pm for a 35 ps laser pulse. We observe that the chirp characteristics are independent of the repetition rate of the laser up to 10 GHz.
机译:我们报告了一系列有关自发发射控制纳米激光动力学的实验。激光腔是一个光子晶体平板腔,内嵌自组装的量子点作为增益材料。腔电动力学效应的实现显着增加了大信号调制带宽,测得的调制速度约为10 GHz,同时保持了19 dB的消光比。报告了线性瞬态波长偏移,对应于35 ps激光脉冲的a小于100 pm。我们观察到线性调频特性与高达10 GHz的激光重复率无关。

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