Polarization dynamics in VCSEL-based gain switching optical frequency combs

Quirce Teja, Ana; Dios, Cristina de; Valle Gutiérrez, Ángel; Pesquera Gonzalez, Luis; Acedo Gallardo, Pablo

doi:10.1109/JLT.2018.2790435

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Identificadores

URI: https://hdl.handle.net/10902/35072

DOI: 10.1109/JLT.2018.2790435

ISSN: 0733-8724

ISSN: 1558-2213

Fecha

2018-05-15

Derechos

© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Publicado en

Journal of Lightwave Technology, 2018, 36(10), 1798-1806

Editorial

OSA e IEEE

Enlace a la publicación

https://doi.org/10.1109/JLT.2018.2790435

Palabras clave

Semiconductor lasers

Vertical-Cavity Surface

Emitting Lasers

Gain switching

Optical frequency comb generator

Resumen/Abstract

In this paper, we report on the polarization dynamics of a 1550 nm vertical-cavity surface-emitting laser (VCSEL) under gain switching regime. We focus our analysis on the resulting optical frequency combs associated with the main and suppressed polarization modes. Measurement of the parameters characterizing the polarization behavior of our single-transverse mode VCSEL is performed from the analysis of high-resolution optical spectra. An extension of the spin-flip rate model to include nonlinear carrier recombination is developed. An analysis of polarization-resolved dynamics is performed by using the previous model with the measured VCSEL parameters. We show that two orthogonally polarized combs are generated that combine to produce a wider overall optical comb. We analyze the dependence of combs on the amplitude and frequency of the modulation. Our results are in agreement with experiments reported by Prior et al. We also analyze the dependence of the combs on the linear dichroism of the VCSEL We show that the change of this dichroism results in bistability between the two orthogonally polarized combs.