Stable polarization self-modulation in vertical-cavity surface-emitting lasers

作者: Hua Li , Angela Hohl , Athanasios Gavrielides , Hong Hou , Kent D. Choquette

DOI: 10.1063/1.121398

关键词: LaserSemiconductor laser theoryOpticsSelf modulationMode-lockingLinear polarizationSpectral lineOptoelectronicsPolarization (waves)Materials scienceVertical-cavity surface-emitting laser

摘要: The characteristics of polarization self-modulation in a vertical-cavity surface-emitting laser (VCSEL) were studied for frequencies up to ≈9 GHz both experimentally and theoretically. Polarization was obtained by rotating the linearly polarized output VCSEL 90° reinjecting it into laser. Experimentally we simultaneously recorded time traces, optical radio-frequency spectra. We found increasing modulation that changed from square-wave sinusoidal system assumed new eigenstates are different free-running eigenstates. modeled as an interband process good qualitative agreement between our experimental numerical results.

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