期刊
APPLIED PHYSICS LETTERS
卷 99, 期 15, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3651339
关键词
birefringence; high-speed optical techniques; light polarisation; surface emitting lasers
资金
- Deutsche Forschungsgesellschaft (DFG) [Sonderforschungsbereich 491]
We report spin-induced polarization oscillations in vertical-cavity surface-emitting lasers above threshold and at room temperature. The oscillation frequency is 11.6 GHz, which is significantly higher than the modulation bandwidth of less than 4 GHz in the device. The oscillation frequency is determined by an additional resonance frequency in birefringence containing microcavities, which is potentially much higher than the conventional relaxation oscillation frequency. The damping of the oscillations can be controlled by the current, allowing for oscillation lifetimes much longer than the spin lifetime in the device as well as for short bursts potentially interesting for information transmission. (C) 2011 American Institute of Physics. [doi:10.1063/1.3651339]
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