Spin modulation in semiconductor lasers

Jeongsu Lee; Falls, William; Oszwałdowski, Rafal; Zžutic, Igor
July 2010
Applied Physics Letters;7/26/2010, Vol. 97 Issue 4, p041116
Academic Journal
We provide an analytic study of the dynamics of semiconductor lasers with injection (pump) of spin-polarized electrons, previously considered in the steady-state regime. Using complementary approaches of quasistatic and small signal analyses, we elucidate how the spin modulation in semiconductor lasers can improve performance, as compared to the conventional (spin-unpolarized) counterparts. We reveal that the spin-polarized injection can lead to an enhanced bandwidth and desirable switching properties of spin-lasers.


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