Measuring the sampling coherence of a terahertz quantum cascade laser
Maysonnave, J, Jukam, N, Rungsawang, R et al. (11 more authors)
(2012)
Measuring the sampling coherence of a terahertz quantum cascade laser.
Optics Express, 20 (15).
16662 - 16670.
ISSN 1094-4087
Abstract
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.
Metadata
Item Type:
Article
Authors/Creators:
Maysonnave, J
Jukam, N
Rungsawang, R
Maussang, K
Madéo, J
Cavalié, P
Dhillon, SS
Tignon, J
Ibrahim, MSM
Dean, P
Khanna, SP
Steenson, DP
Linfield, EH
Davies, AG
Copyright, Publisher and Additional Information:
(c) 2012, Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org//10.1364/OE.20.016662. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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