Share Email Print

Proceedings Paper

Design and simulation of quantum-dot-based push-pull DFB lasers
Author(s): I. Montrosset; P. Bardella
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

We present an analysis of Quantum Dot (QD) based Push-Pull modulated DFB (PP-DFB) laser, showing enhanced small and large signal modulation bandwidth thanks to the interaction between two longitudinal cavity modes. Using an analysis of the cavity modes at threshold, we propose a simple yet effective design technique which allow to select the cavity length and the coupling coefficient to obtain the desired extension of the modulation bandwidth. The design is validated using a Time Domain Travelling Wave (TDTW) model including a proper description of the Quantum Dot material and of the standing wave pattern generated by the cavity field. Our results show that QD PP-DFB can effectively take advantage of the Push-Pull modulation scheme to increase their modulation bandwidth.

Paper Details

Date Published: 23 February 2018
PDF: 9 pages
Proc. SPIE 10526, Physics and Simulation of Optoelectronic Devices XXVI, 1052605 (23 February 2018); doi: 10.1117/12.2290711
Show Author Affiliations
I. Montrosset, Politecnico di Torino (Italy)
P. Bardella, Politecnico di Torino (Italy)

Published in SPIE Proceedings Vol. 10526:
Physics and Simulation of Optoelectronic Devices XXVI
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)

© SPIE. Terms of Use
Back to Top