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Article Dans Une Revue Optics Express Année : 2012

Measuring the sampling coherence of a terahertz quantum cascade laser

Résumé

The emission of a quantum cascade laser can be synchronized to the repetition rate of a femtosecond laser through the use of coherent injection seeding. This synchronization defines a sampling coherence between the terahertz laser emission and the femtosecond laser which enables coherent field detection. In this letter the sampling coherence is measured in the time-domain through the use of coherent and incoherent detection. For large seed amplitudes the emission is synchronized, while for small seed amplitudes the emission is non-synchronized. For intermediate seed amplitudes the emission exhibits a partial sampling coherence that is time-dependent.
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Dates et versions

hal-00719339 , version 1 (19-07-2012)

Identifiants

  • HAL Id : hal-00719339 , version 1

Citer

Jean Maysonnave, Nathan Jukam, M. S. M. Ibrahim, Rakchanok Rungsawang, Kenneth Maussang, et al.. Measuring the sampling coherence of a terahertz quantum cascade laser. Optics Express, 2012, 20, pp.16662. ⟨hal-00719339⟩
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