Semiconductor snail lasers

Strain, M. J.; Mezősi, G.; Javaloyes, J.; Sorel, M.; Pérez-Serrano, A.; Scirè, A.; Balle, S.; Danckaert, J.; Verschaffelt, G.
March 2010
Applied Physics Letters;3/22/2010, Vol. 96 Issue 12, p121105
Academic Journal
A modified ring laser geometry is presented to promote stable unidirectional lasing. The effects of directional coupling and facet reflectivities are investigated with respect to quantum efficiency, directionality, and side-mode suppression ratio of the lasing spectra. Simulation and experimental results are presented showing single mode (>20 dB side-mode suppression ratio), unidirectional lasing on an InP based multiple quantum well material.


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