Frequency and time domain analysis of an external cavity laser with strong filtered optical feedback

Enrico Detoma, Bjarne Tromborg, Ivo Montrosset

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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 this stabilizing effect of mode coupling and gain copression in 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.
Original languageEnglish
Publication date2004
Publication statusPublished - 2004
EventConference on Semiconductor Lasers and Lasers Dynamics : (part of SPIE's International Symposium Photonics Europe) - Strasbourg, France
Duration: 1 Jan 2004 → …

Conference

ConferenceConference on Semiconductor Lasers and Lasers Dynamics : (part of SPIE's International Symposium Photonics Europe)
CityStrasbourg, France
Period01/01/2004 → …

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