HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Emission control in broad periodic waveguides and critical coupling

Henri Benisty 1 Omer Khayam 1 Cyril Cambournac 1
1 Laboratoire Charles Fabry de l'Institut d'Optique / Naphel
LCFIO - Laboratoire Charles Fabry de l'Institut d'Optique
Abstract : Broad periodic channel waveguides, with a corrugation on their edge, exhibit a remarkable structure in their dispersion diagram, in the form of stripes of minigaps, whose hyperbolic shape is demonstrated. Around the Brillouin zone edge, the contra-directional feedback borrows the geometry of Littrow diffraction. Spontaneous emission from a large subset of modes then acquires a strong modulation. Lasing on these modes, the so-called “Littrow lasing”, offers also the lowest lasing threshold of the open resonator system. Reviewing our recent studies of this system, we discuss slow light and critical coupling phenomena: for a properly adjusted contra-directional coupling, the bands become substantially flat in a sizable area of the dispersion diagram, opening various perspectives. The band engineering tools to master these phenomena and the physical implications in other domains are briefly reviewed.
Document type :
Journal articles
Complete list of metadata

https://hal-iogs.archives-ouvertes.fr/hal-00566710
Contributor : Henri Benisty Connect in order to contact the contributor
Submitted on : Wednesday, February 16, 2011 - 7:03:55 PM
Last modification on : Wednesday, September 16, 2020 - 5:42:35 PM

Identifiers

Collections

Citation

Henri Benisty, Omer Khayam, Cyril Cambournac. Emission control in broad periodic waveguides and critical coupling. Photonics and Nanostructures - Fundamentals and Applications, Elsevier, 2010, 8, pp.210-217. ⟨10.1016/j.photonics.2010.02.005⟩. ⟨hal-00566710⟩

Share

Metrics

Record views

66