A recently introduced optimal control theory method for optical waveguide design is applied to <i>Y</i>-branch waveguides and Mach–Zehnder modulators. The method simultaneously optimizes many parameters in a chosen design scheme; computational effort scales mildly with the number of parameters considered. Significant improvement in guiding efficiency relative to intuitively reasonable initial parameter choices is obtained in all cases.
© 1999 Optical Society of America
Dhruv K. Pant, Rob D. Coalson, Marta I. Hernández, and José Campos-Martínez, "Optimal Control Theory for Optical Waveguide Design: Application to Y-Branch Structures," Appl. Opt. 38, 3917-3923 (1999)