Difference in partition noise for 1.55 um quantum-dash and bulk structures

Jean-François Hayau; Julien Poëtte; Vincent Roncin; Pascal Besnard; François Lelarge; Benjamin Rousseau; Loïc Le Gouezigou; Frédéric Pommereau; Francis Poingt; Odile Le Gouezigou; Alexandre Shen; Guang-Hua Duan

doi:10.1117/12.781490

19 May 2008 Difference in partition noise for 1.55 μm quantum-dash and bulk structures

Jean-François Hayau, Julien Poëtte, Vincent Roncin, Pascal Besnard, François Lelarge, Benjamin Rousseau, Loïc Le Gouezigou, Frédéric Pommereau, Francis Poingt, Odile Le Gouezigou, Alexandre Shen, Guang-Hua Duan

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Proceedings Volume 6997, Semiconductor Lasers and Laser Dynamics III; 69970S (2008) https://doi.org/10.1117/12.781490
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

The comparison of relative intensity noise (Rin) shows improved performances, for quantum dash laser (QD) compared to the ones of bulk medium structures. We introduced a statistical measurement through a coupling parameter that reveals the impact of strong damping on the competition between modes or the so-called partition noise. The existence of a strong damping in QD laser prevents the relaxation frequency from being observed in the coupling parameter, which makes the noise to appear as if the laser lines were inhomogeneous. However the method also enables the characterization of the coupling strength between modes, showing again differences between QD and bulk structures.

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Jean-François Hayau, Julien Poëtte, Vincent Roncin, Pascal Besnard, François Lelarge, Benjamin Rousseau, Loïc Le Gouezigou, Frédéric Pommereau, Francis Poingt, Odile Le Gouezigou, Alexandre Shen, and Guang-Hua Duan "Difference in partition noise for 1.55 μm quantum-dash and bulk structures", Proc. SPIE 6997, Semiconductor Lasers and Laser Dynamics III, 69970S (19 May 2008); https://doi.org/10.1117/12.781490

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KEYWORDS

Bulk lasers

Optical filters

Semiconductor lasers

Fiber lasers

Electrons

Fabry–Perot interferometers

Laser optics

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