WC2.3-Probing Ultrafast Switch-on Dynamics of Frequency Tuneable Semiconductor Lasers Using Terahertz Time-domain Spectroscopy (Invited)

Iman Kundu*, Feihu Wang, Xiaoqiong Qi, Hanond Nong, Paul Dean, Joshua R. Freeman, Alexander Valavanis, Gary Agnew, Andrew T. Grier, Thomas Taimre, Lianhe Li, Dragan Indjin, Juliette Mangeney, Jerome Tignon, Sukhdeep S. Dhillon, Aleksandar D. Rakic, John E. Cunningham, Edmund H. Linfield, A. Giles Davies

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report measurements of switch-on dynamics, mode competition and frequency selection in a monolithic frequency-tuneable laser using coherent time-domain sampling of the laser emission. We observe hopping between lasing modes on picosecond-timescales and temporal evolution of transient multi-mode emission into steady-state single mode emission.

Original languageEnglish (US)
Title of host publicationIEEE Photonics Society Summer Topical Meeting Series 2019, SUM 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728105970
DOIs
StatePublished - Jul 2019
Externally publishedYes
Event2019 IEEE Photonics Society Summer Topical Meeting Series, SUM 2019 - Fort Lauderdale, United States
Duration: Jul 8 2019Jul 10 2019

Publication series

NameIEEE Photonics Society Summer Topical Meeting Series 2019, SUM 2019

Conference

Conference2019 IEEE Photonics Society Summer Topical Meeting Series, SUM 2019
Country/TerritoryUnited States
CityFort Lauderdale
Period7/8/197/10/19

Keywords

  • Quantum cascade lasers
  • Semiconductor lasers
  • Terahertz
  • Ultrafast
  • laser dynamics

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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