Title :
Scattering matrix analysis of a triangular ring laser
Author :
Lau, S.T. ; Shiraishi, T. ; Ballantyne, J.M.
Author_Institution :
Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
fDate :
2/1/1994 12:00:00 AM
Abstract :
A method of analysis for ring waveguide lasers is presented. This method is based on the use of the scattering matrix formulation to represent the waveguide junctions. An extension of previous work is made so that any number of junctions may be serially connected. The method is then applied to a three-junction triangular ring laser and various operating characteristics are calculated, in particular the longitudinal mode spacing and the power ratio of the counterpropagating waves of the laser. It is found that this ratio is much more sensitive to a difference in forward coupling than to backward coupling, but that a difference in either will enhance unidirectional operation of the device. Comparison to experimental data is made where possible
Keywords :
integrated optics; laser cavity resonators; laser modes; laser theory; light scattering; matrix algebra; optical waveguide theory; ring lasers; semiconductor lasers; backward coupling; counterpropagating waves; forward coupling; laser cavity; longitudinal mode spacing; operating characteristics; power ratio; ring waveguide lasers; scattering matrix formulation; serially connected junctions; three-junction triangular ring laser; triangular ring laser; unidirectional operation; waveguide junctions; Fiber lasers; Laser modes; Laser theory; Masers; Optical waveguides; Ring lasers; Scattering; Semiconductor lasers; Transmission line matrix methods; Waveguide lasers;
Journal_Title :
Lightwave Technology, Journal of
