Abstract

Leaky waveguide structures have received great interest lately and several novel devices based on the leaky waveguides have been proposed and demonstrated. For instance, the low-loss ARROW devices have been fabricated on various materials and can be used as a polarizer [1]. ARROW or Bragg-reflection waveguides (BRW) can be used to build strongly coupled directional couplers with large separation [2]. The leaky waveguide structures can also be used in the detector design to achieve efficient absorption [3].

© 1992 Optical Society of America