We present a new approach for the calculation of resonator mirror shapes based on a simulated annealing optimization algorithm. Compared with the possibilities of conventional resonators with spherical mirrors, the method presented permits a large mode volume of the stationary field distribution of the oscillating lowestloss mode and an increase in its loss discrimination against the remaining ensemble of other modes at the same time. We present results for circular symmetric graded-phase mirrors that yield a difference of 30% between the diffraction losses of the fundamental mode and of other evaluated higher modes.
© 1996 Optical Society of America
Gregor Angelow, Franco Laeri, and Theo Tschudi, "Designing resonators with large mode volume and high mode discrimination," Opt. Lett. 21, 1324-1326 (1996)