Share Email Print
cover

Proceedings Paper

Extending the direct laser modulation bandwidth by exploiting the photon-photon resonance: modeling, simulations and experiments
Author(s): M. Dumitrescu; A. Laakso; J. Viheriala; M. Kamp; P. Bardella; G. Eisenstein
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The direct laser modulation bandwidth can be extended substantially by introducing a supplementary photon-photon resonance (PPR) at a higher frequency than the carrier-photon resonance (CPR). The paper presents a modified rate equation model that takes into account the PPR by treating the longitudinal confinement factor as a dynamic variable. The conditions required for obtaining a strong PPR and an enhancement of the small-signal modulation bandwidth are analyzed and experimental results confirming the model are presented. Since the small-signal modulation bandwidth may not be indicative of the large-signal modulation capability, particularly in case of a small-signal modulation response with substantial variations across the bandwidth, we have also analyzed the influence of the PPR-enhanced small-signal modulation response shape on the large-signal modulation capability as well as the methods that can be employed to flatten the small-signal modulation transfer function between the CPR and PPR.

Paper Details

Date Published: 14 March 2013
PDF: 7 pages
Proc. SPIE 8619, Physics and Simulation of Optoelectronic Devices XXI, 86190A (14 March 2013); doi: 10.1117/12.2004976
Show Author Affiliations
M. Dumitrescu, Tampere Univ. of Technology (Finland)
A. Laakso, Tampere Univ. of Technology (Finland)
J. Viheriala, Tampere Univ. of Technology (Finland)
M. Kamp, Julius-Maximilians-Univ. Würzburg (Germany)
P. Bardella, Politecnico di Torino (Italy)
G. Eisenstein, Technion-Israel Institute of Technology (Israel)


Published in SPIE Proceedings Vol. 8619:
Physics and Simulation of Optoelectronic Devices XXI
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

© SPIE. Terms of Use
Back to Top