Show simple item record

dc.contributor.authorNshii, C.
dc.contributor.authorIronside, Charlie
dc.contributor.authorSorel, M.
dc.contributor.authorSlight, T.
dc.contributor.authorZhang, S.
dc.contributor.authorRevin, D.
dc.contributor.authorCockburn, J.
dc.identifier.citationNshii, C. and Ironside, C. and Sorel, M. and Slight, T. and Zhang, S. and Revin, D. and Cockburn, J. 2010. A unidirectional quantum cascade ring laser. Applied Physics Letters. 97 (23).

We report on the design, fabrication, and characterization of a unidirectional quantum cascade ring laser operating at a wavelength of around 3.4 µm at 200 K. A unidirectional operation is achieved by incorporating an "S-shaped" crossover waveguide in a manner that it couples light from the counterclockwise direction to the preferred clockwise direction. The ring laser unidirectionality is confirmed by measuring the counterpropagating wave suppression ratio (CWSR) as a function of injection current. At 1.5 times the threshold current, the CWSR is 9 that is 90% of the light is emitted in the favored (clockwise) direction. © 2010 American Institute of Physics.

dc.publisherAmerican Institute of Physics
dc.titleA unidirectional quantum cascade ring laser
dc.typeJournal Article
dcterms.source.titleApplied Physics Letters
curtin.departmentDepartment of Physics and Astronomy
curtin.accessStatusFulltext not available

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record