Tailoring Chirp in Spin-Lasers
arXiv:1202.4706 · doi:10.1063/1.3693168
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.
4 pages, 3 figures
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Cited by in corpus (8)
- Ultrafast spin-lasers
- Toward high-frequency operation of spin lasers
- Spin-Lasers: Spintronics Beyond Magnetoresistance
- Wurtzite spin lasers
- Magnetic anisotropies of quantum dots
- Intensity equations for birefringent spin lasers
- Polarization response of spin-lasers under amplitude modulation
- The birefringent spin-laser as a system of coupled harmonic oscillators