Abstract
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.
Original language | English |
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Article number | 121105 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 96 |
Issue number | 12 |
DOIs | |
Publication status | Published - 22 Mar 2010 |
Keywords
- III-V semiconductors
- indium compounds
- laser modes
- laser stability
- quantum well lasers
- ring lasers