Coupling strategies for coherent operation of quantum cascade ring laser arrays

Clemens Schwarzer, Y. Yao, E. Mujagić, S. Ahn, W. Schrenk, J. Chen, Claire F. Gmachl, G. Strasser

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

Abstract

We report the design, fabrication and operation of coherently coupled ring cavity surface emitting quantum cascade lasers, emitting at wavelength around 8 μm. Special emphasis is placed on the evaluation of optimal coupling approaches and corresponding parameters. Evanescent field coupling as well as direct coupling where both devices are physically connected is presented. Furthermore, exploiting the Vernier-effect was used to obtain enhanced mode selectivity and robust coherent coupling of two ring-type quantum cascade lasers. Investigations were performed at pulsed room-temperature operation.

Original languageEnglish (US)
Title of host publicationPhysics of Semiconductors - 30th International Conference on the Physics of Semiconductors, ICPS-30
Pages989-990
Number of pages2
DOIs
StatePublished - Dec 1 2011
Event30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul, Korea, Republic of
Duration: Jul 25 2010Jul 30 2010

Publication series

NameAIP Conference Proceedings
Volume1399
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other30th International Conference on the Physics of Semiconductors, ICPS-30
CountryKorea, Republic of
CitySeoul
Period7/25/107/30/10

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Keywords

  • Evanescent field coupling
  • coherent coupling
  • quantum cascade laser

Fingerprint Dive into the research topics of 'Coupling strategies for coherent operation of quantum cascade ring laser arrays'. Together they form a unique fingerprint.

Cite this