We numerically investigate the capabilities and advantages of Raman lasers based on integrated single-crystal diamond ring resonators. To this end, we first model continuous-wave (CW) Raman lasing action while taking into account the lasing directionality, the linear and nonlinear losses, and the coupling of the fields between the bus and ring sections of racetrack-shaped diamond ring resonators. We then consider the design of the ring resonators for a short-wavelength infrared (SWIR) and an ultraviolet (UV) Raman laser. Using our Raman lasing model, we determine the lasing directionality, pump threshold and lasing efficiency of the SWIR and UV devices. We find that both can yield efficient CW operation with SWIR and UV lasing slope efficiencies of 33% and 65 %, respectively. These results showcase the potential of integrated diamond ring Raman lasers for producing wavelengths that are challenging to generate with other types of integrated lasers.

Date Published: 27 April 2016
PDF: 17 pages
Proc. SPIE 9894, Nonlinear Optics and its Applications IV, 989414 (27 April 2016); doi: 10.1117/12.2225221

Published in SPIE Proceedings Vol. 9894:
Nonlinear Optics and its Applications IV
Benjamin J. Eggleton; Neil G. R. Broderick; Alexander L. Gaeta, Editor(s)