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Proceedings Paper

Elimination of VCSEL switch-on transient oscillations using photo-active pumping
Author(s): Spilios Riyopoulos
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Paper Abstract

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.

Paper Details

Date Published: 1 May 2000
PDF: 7 pages
Proc. SPIE 3946, Vertical-Cavity Surface-Emitting Lasers IV, (1 May 2000); doi: 10.1117/12.384369
Show Author Affiliations
Spilios Riyopoulos, Science Applications International Corp. (United States)

Published in SPIE Proceedings Vol. 3946:
Vertical-Cavity Surface-Emitting Lasers IV
Kent D. Choquette; Chun Lei, Editor(s)

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