Third Order Bragg Grating Filters in Small SOI Waveguides

S. P. Chan; V. M.N. Passaro; G. Z Mashanovich; G. Ensell; G. T. Reed

doi:10.2971/jeos.2007.07029

Journal of the European Optical Society - Rapid publications, Vol 2 (2007)

Third Order Bragg Grating Filters in Small SOI Waveguides

S. P. Chan, V. M.N. Passaro, G. Z Mashanovich, G. Ensell, G. T. Reed

Abstract

Third order grating filters fabricated in small Silicon-on-Insulator rib waveguides are demonstrated. Variations in grating etch depth and duty cycle are considered, and a maximum experimental reflection of 42% is demonstrated for gratings of 1500microm in length, with a grating period of approximately 689nm and an etch depth of 200nm. Agreement with modeling is shown to be good.

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