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Proceedings Paper

Planar add/drop two-wavelength filter employing a blazed Bragg grating and a 3x3 asymmetric coupler
Author(s): Keith W. Gaff; Francois J. Ladouceur; John D. Love
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Paper Abstract

We propose a novel 6-port planar waveguide coupler device for adding and/or dropping tow different wavelengths from a WDM channel using a single grating. By writing a blazed Bragg grating into a few-moded core at a slight angle to the waveguide propagation direction, power can be coupled from the fundamental mode into higher-order, backward-propagating modes and vice-versa. Each such mode is channelled into a particular output port using an adiabatic splitter. Modeling results indicate that more than 99.99 percent of the power in the fundamental mode can be coupled into the higher-order modes at their respective Bragg wavelengths.

Paper Details

Date Published: 12 November 1999
PDF: 10 pages
Proc. SPIE 3896, Design, Fabrication, and Characterization of Photonic Devices, (12 November 1999); doi: 10.1117/12.370331
Show Author Affiliations
Keith W. Gaff, Optical Sciences Ctr./Australian National Univ. (Australia)
Francois J. Ladouceur, Virtual Photonics Inc. (Australia)
John D. Love, Optical Sciences Ctr./Australian National Univ. (Australia)


Published in SPIE Proceedings Vol. 3896:
Design, Fabrication, and Characterization of Photonic Devices
Marek Osinski; Soo-Jin Chua; Shigefusa F. Chichibu, Editor(s)

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