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Study of Multichannel Parallel Anti-Symmetric Waveguide Bragg Gratings for Telecom Applications

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4 Author(s)
Castillo, J.E. ; Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ ; Castro, J.M. ; Kostuk, R.K. ; Geraghty, D.F.

We theoretically demonstrate the viability of parallel anti-symmetric waveguide Bragg gratings within a two-mode waveguide. These gratings produce reflections with mode conversions. This is the functional equivalent of superimposed Bragg gratings in silica-on-silicon without requiring multilevel etches. Also, due to their weaker coupling constant, these gratings allow for devices with narrow spectral full-width at half-maximum that can process multiple wavelength channels for applications such as optical add-drop multiplexers and optical encoders in optical communication systems

Published in:

Photonics Technology Letters, IEEE  (Volume:19 ,  Issue: 2 )