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Characterization of the working parameters of a long-wavelength VCSEL

Abstract: We report on measurements of the working parameters of a 1550-nm single-transverse mode vertical-cavity surface-emitting laser (VCSEL), including those that describe the polarization behavior of the device. Simple expressions for the laser linewidth and laser power as a function of the bias current are used in a first stage. High resolution CW optical spectrum and intensity noise spectrum measurements are performed to apply this technique. Current-induced polarization switching (PS) is observed in our device when increasing the bias current, from the higher to the lower frequency polarization mode. A minimum in the absolute value of the effective dichroism is observed at the PS point. The value of the effective birefringence has a discontinuity at the current at which PS is observed. PS characteristics are used for the extraction of the parameters describing the polarization behavior of the VCSEL.

Other conference communications or articles related to authors from the University of Cantabria

 Congress: SPIE Photonics Europe 2014: Semiconductor Lasers and Laser Dynamics (6º : 2014 : Bruselas)

 Publisher: SPIE Society of Photo-Optical Instrumentation Engineers

 Publication date: 01/05/2014

 No. of pages: 12

 Publication type: Conference object

 DOI: 10.1117/12.2051538

 ISSN: 0277-786X,1996-756X

 Publication Url: https://doi.org/10.1117/12.2051538

Authorship

PABLO PEREZ GARCIA

IGNACIO NORIEGA GONZALEZ

LUIS PESQUERA GONZALEZ