Literature DB >> 15035475

Linewidth and tuning characteristics of terahertz quantum cascade lasers.

A Barkan1, F K Tittel, D M Mittleman, R Dengler, P H Siegel, G Scalari, L Ajili, J Faist, H E Beere, E H Linfield, A G Davies, D A Ritchie.   

Abstract

We have measured the spectral linewidths of three continuous-wave quantum cascade lasers operating at terahertz frequencies by heterodyning the free-running quantum cascade laser with two far-infrared gas lasers. Beat notes are detected with a GaAs diode mixer and a microwave spectrum analyzer, permitting very precise frequency measurements and giving instantaneous linewidths of less than -30 kHz. Characteristics are also reported for frequency tuning as the injection current is varied.

Year:  2004        PMID： 15035475     DOI： 10.1364/ol.29.000575

Source DB:  PubMed          Journal:  Opt Lett        ISSN： 0146-9592            Impact factor:   3.776


  2 in total

1.  Phase-locking to a free-space terahertz comb for metrological-grade terahertz lasers.

Authors:  L Consolino; A Taschin; P Bartolini; S Bartalini; P Cancio; A Tredicucci; H E Beere; D A Ritchie; R Torre; M S Vitiello; P De Natale
Journal:  Nat Commun       Date:  2012       Impact factor: 14.919

2.  Spectral purity and tunability of terahertz quantum cascade laser sources based on intracavity difference-frequency generation.

Authors:  Luigi Consolino; Seungyong Jung; Annamaria Campa; Michele De Regis; Shovon Pal; Jae Hyun Kim; Kazuue Fujita; Akio Ito; Masahiro Hitaka; Saverio Bartalini; Paolo De Natale; Mikhail A Belkin; Miriam Serena Vitiello
Journal:  Sci Adv       Date:  2017-09-01       Impact factor: 14.136
  2 in total

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