1 May 2000 Elimination of VCSEL switch-on transient oscillations using photo-active pumping
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Proceedings Volume 3946, Vertical-Cavity Surface-Emitting Lasers IV; (2000) https://doi.org/10.1117/12.384369
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
It is demonstrated numerically that photoactive layers placed in a VCSEL cavity can eliminate the power modulation during laser switch on. As well known, the transient response is generated by the cavity relaxation oscillations (omega) R, stemming from accelerated carrier depletion with increasing laser power. The presence of photoactive layers with appropriately chosen parameters reverses the sign of the depletion rate. The relaxation frequency then becomes pure imaginary, and the laser cavity behaves as an overdamped oscillator that asymptotes to the final steady-state without power modulation or 'spiking.' Superior bandwidth is anticipated by frequency response analysis.
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Spilios Riyopoulos, Spilios Riyopoulos, } "Elimination of VCSEL switch-on transient oscillations using photo-active pumping", Proc. SPIE 3946, Vertical-Cavity Surface-Emitting Lasers IV, (1 May 2000); doi: 10.1117/12.384369; https://doi.org/10.1117/12.384369


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