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arXiv · 1202.4706

Tailoring Chirp in Spin-Lasers

Guilhem Boeris·Jeongsu Lee·Karel Vyborny·Igor Zutic
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Abstract

The usefulness of semiconductor lasers is often limited by the undesired frequency modulation, or chirp, a direct consequence of the intensity modulation and carrier dependence of the refractive index in the gain medium. In spin-lasers, realized by injecting, optically or electrically, spin-polarized carriers, we elucidate paths to tailoring chirp. We provide a generalized expression for chirp in spin-lasers and introduce modulation schemes that could simultaneously eliminate chirp and enhance the bandwidth, as compared to the conventional (spin-unpolarized) lasers.

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Guilhem Boeris, Jeongsu Lee, Karel Vyborny, Igor Zutic. 2012-02-21. Tailoring Chirp in Spin-Lasers. https://doi.org/10.1063/1.3693168

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