We propose a new type of two-dimensional (2D) photonic crystal L-shaped bent waveguides based on ring resonators with an acceptable bandwidth. The proposed structure mechanism is based on coupling between a waveguide and a ring resonator. This structure is designed and verified by finite-difference time-domain (FDTD) computation. Our simulation using this method gets over 90% output.
© 2008 Chinese Optics Letters
(130.3130) Integrated optics : Integrated optics materials
(230.0230) Optical devices : Optical devices
(230.7390) Optical devices : Waveguides, planar
(250.5300) Optoelectronics : Photonic integrated circuits
M. Djavid, F. Monifi, A. Ghaffari, and M. S. Abrishamian, "A photonic crystal L-shaped bend based on ring resonators," Chin. Opt. Lett. 6, 713-714 (2008)