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High-frequency microwave signal generation using multi-transverse mode VCSELs subject to two-frequency optical injection.

Authors
  • Quirce, A
  • Valle, A
Type
Published Article
Journal
Optics Express
Publisher
The Optical Society
Publication Date
Jun 04, 2012
Volume
20
Issue
12
Pages
13390–13401
Identifiers
DOI: 10.1364/OE.20.013390
PMID: 22714366
Source
Medline
License
Unknown

Abstract

In this paper we report a new method of photonic generation of microwave signals using a multi-transverse mode VCSEL subject to two-frequency optical injection. Numerical simulations show that double injection locking involving two transverse modes can be obtained in these systems. We show that the higher-order transverse mode is excited with a much larger amplitude than that of the fundamental transverse mode. The comparison with the case of a single-transverse mode VCSEL subject to similar two-frequency optical injection shows that multi-transverse mode operation of the VCSEL enhances the performance of the photonic microwave generation system. Broad tuning ranges, beyond the THz region, and narrow linewidths are demonstrated in our system. The maximum frequency of the generated microwave signals can be substantially increased if multimode VCSELs are used instead of single-mode VCSELs.

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