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Proceedings Paper

Frequency and time domain analysis of an external cavity laser with strong filtered optical feedback
Author(s): Enrico Detoma; Bjarne Tromborg; Ivo Montrosset
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Paper Abstract

The stability properties of an external cavity laser with strong grating-filtered optical feedback to an anti-reflection coated facet are studied with a general frequency domain model. The model takes into account non-linear effects like four wave mixing and gain compression. A small-signal analysis in the frequency domain allows a calculation of the range of operation without mode hopping around the grating reflectivity peak. This region should be as large as possible for proper operation of the tunable laser source. The analysis shows the stabilizing effect of mode coupling and of gain compression on the lasing mode. An integral equation for the electrical field is derived from the frequency domain model and used for time domain simulations of large-signal behavior.

Paper Details

Date Published: 1 September 2004
PDF: 8 pages
Proc. SPIE 5452, Semiconductor Lasers and Laser Dynamics, (1 September 2004); doi: 10.1117/12.546525
Show Author Affiliations
Enrico Detoma, Politecnico di Torino (Italy)
Bjarne Tromborg, Danmarks Tekniske Univ. (Denmark)
Ivo Montrosset, Politecnico di Torino (Italy)

Published in SPIE Proceedings Vol. 5452:
Semiconductor Lasers and Laser Dynamics
Daan Lenstra; Geert Morthier; Thomas Erneux; Markus Pessa, Editor(s)

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