VCSEL-Based Optical Frequency Combs Expansion Induced by Polarized Optical Injection

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URI: http://hdl.handle.net/10902/18477
ISSN: 1077-260X
ISSN: 1558-4542
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Autoría
Quirce Teja, AnaAutoridad Unican; Dios, Cristina de; Valle Gutiérrez, ÁngelAutoridad Unican; Acedo Gallardo, Pablo
Fecha
2019-12
Derechos
© 2019 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
IEEE Journal of Selected Topics in Quantum Electronics, Vol. 25, Is. 6, Art. Num. 1500109 (2019)
Editorial
Institute of Electrical and Electronics Engineers Inc.
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Palabras clave
Semiconductor lasers
Vertical-Cavity Surface-Emitting Lasers
Gain switching
Optical frequency comb generator
Optical injection
Polarization
Resumen/Abstract
ABSTRACT: The present theoretical work studies optical frequency combs (OFCs) associated with both linear polarizations of a gain switching vertical-cavity surface-emitting laser (VCSEL) subject to optical injection of arbitrary polarization. The overall OFC, formed by the two orthogonally polarized sub-combs, can have an expanded optical span in agreement with experiments reported by Prior et al. We show that the maximum optical span is obtained for a certain angle between the linearly polarized optical injection and the direction of emission of the main mode of the free-running VCSEL. We find that this angle decreases as the injection strength increases. We also characterize the maximum expansion of the optical span of the overall comb. For VCSELs with large birefringence splitting the maximum expansion is the optical span of the free-running OFC, while for small birefringence splitting VCSELs the maximum expansion is the value of the birefringence splitting.
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