Measurement of phase-correlation between optical modes of semiconductor lasers

Simonetta, M. and Soldo, M. and Zanola, M. and Giuliani, G. and Strain, M.J. and Sorel, M.; (2011) Measurement of phase-correlation between optical modes of semiconductor lasers. In: 2011 conference on lasers and electro-optics europe and 12th european quantum electronics conference (CLEO EUROPE/EQEC 2011). IEEE, DEU. ISBN 9781457705335

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Abstract

Millimeter- and Terahertz-waves can be conveniently generated by photomixing, where the beating of two laser sources onto a photoconductive detector generates signals with a tunability that is much wider than what typically allowed by electronic techniques. Several methods have been proposed to reduce the linewidth of the mm-wave and THz-wave signals generated by photomixing, in order to meet applications' requirements (linewidth <100 kHz, phase noise <100 dBc @100 kHz offset) [1], and all of them are based on inducing a stable phase relationship between the original laser modes. A novel method to phase-lock two semiconductor laser modes oscillating at and is represented by mutual injection-locking assisted by Four Wave Mixing (FWM) generated using a third auxiliary mode at = (+)/2 as pump [2].

ORCID iDs

Simonetta, M., Soldo, M., Zanola, M., Giuliani, G., Strain, M.J. ORCID logoORCID: https://orcid.org/0000-0002-9752-3144 and Sorel, M.;
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