Terahertz repetition frequencies from harmonic mode-locked monolithic compound-cavity laser diodes

D. A. Yanson, M. W. Street, S. D. McDougall, I. G. Thayne, J. H. Marsh, E. A. Avrutin

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Compound-cavity laser diodes are mode locked at a harmonic of the fundamental round-trip frequency to achieve repetition rates of up to 2.1 THz. The devices are fabricated from GaAs/AlGaAs material at a wavelength of 860 nm and incorporate two gain sections with an etched slot reflector between them, and a saturable absorber section. Autocorrelation studies are used to investigate device behavior for different reflector types and reflectivity. These lasers may find applications in terahertz imaging, medicine, ultrafast optical links, and atmospheric sensing. (C) 2001 American Institute of Physics.

Original languageEnglish
Pages (from-to)3571-3573
Number of pages3
JournalApplied Physics Letters
Issue number23
Publication statusPublished - 4 Jun 2001



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