RT Journal Article
T1 VCSEL-based optical frequency combs expansion induced by polarized optical injection
A1 Quirce, Ana
A1 Dios Fernández, Cristina de
A1 Valle, Ángel
A1 Acedo Gallardo, Pablo
AB 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.
PB IEEE
SN 1077-260X
SN 1558-4542 (online)
YR 2019
FD 2019-12-19
LK https://hdl.handle.net/10016/34640
UL https://hdl.handle.net/10016/34640
LA eng
NO This work was supported by the Ministerio de Economía y Competitividad (MINECO/FEDER, UE), Spain under Project TEC2015-65212-C3-1-P. The work of A. Quirce was supported by the Fonds Wetenschappelijk for the Post-Doctoral Fellowship.
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RD 27 jul. 2024