Measurement of SOA alpha factor using AM-induced FM laser operation in a fiber ring cavity

Simon Lambert Girard; Ana Carrasco Sanz; Hongxin Chen; Gregory W. Schinn; Michel Piché

doi:10.1117/12.839627

4 August 2009 Measurement of SOA α factor using AM-induced FM laser operation in a fiber ring cavity

Simon Lambert Girard, Ana Carrasco Sanz, Hongxin Chen, Gregory W. Schinn, Michel Piché

Author Affiliations +

Proceedings Volume 7386, Photonics North 2009; 738624 (2009) https://doi.org/10.1117/12.839627
Event: Photonics North 2009, 2009, Quebec, Canada

Abstract

We present a new method for measuring the semiconductor optical amplifier (SOA) linewidth enhancement factor, employing a configuration wherein the SOA is placed within a loss modulated fiber ring cavity operated in the FM laser regime. This allows an easy phase-index measurement in lasing operation at small modulation frequencies. A comparison with the conventional FM/AM technique enables independent measurement of the two underlying phase modulation mechanisms: thermal effects from the current modulation and gain-to-refractive index coupling.

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Simon Lambert Girard, Ana Carrasco Sanz, Hongxin Chen, Gregory W. Schinn, and Michel Piché "Measurement of SOA α factor using AM-induced FM laser operation in a fiber ring cavity", Proc. SPIE 7386, Photonics North 2009, 738624 (4 August 2009); https://doi.org/10.1117/12.839627

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