Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume 31, Issue 8, Pages 1867-1873Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.31.001867
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Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Canada Excellence Research Chair in Photonic Innovations
- NSERC Postgraduate Scholarship
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We investigate lasing thresholds in a representative photonic molecule composed of two coupled active cylinders of slightly different radii. Specifically, we use the recently formulated steady-state ab initio laser theory (SALT) to assess the effect of the underlying gain transition on lasing frequencies and thresholds. We find that the order in which modes lase can be modified by choosing suitable combinations of the gain center frequency and linewidth, a result that cannot be obtained using the conventional approach of quasi-bound modes. The impact of the gain transition center on the lasing frequencies, the frequency pulling effect, is also quantified. (C) 2014 Optical Society of America
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