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Proceedings Paper

Passband-flattened arrayed-waveguide grating design using an aspheric output star coupler
Author(s): Michael C. Parker; Farsheed Farjady; Stuart D. Walker
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Paper Abstract

We describe a novel technique for passband control and shaping of an arrayed-waveguide grating (AWG) by designing the output star coupler to exhibit a parabolic deviation from the standard Rowland circle geometry. Passband broadening from 1 nm to 12 nm is possible using this approach. In principle, the phase-apodization function is equivalent to incorporating a synthetic aperture within the AWG, so that the same effect can be achieved by positioning a suitable aspheric-shaped anomalous refractive-index region within the arrayed-waveguide section of the device.

Paper Details

Date Published: 4 December 1998
PDF: 5 pages
Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); doi: 10.1117/12.328640
Show Author Affiliations
Michael C. Parker, Fujitsu Telecommunications Europe Ltd. (United Kingdom)
Farsheed Farjady, Fujitsu Telecommunications Europe Ltd. (United Kingdom)
Stuart D. Walker, Univ. of Essex (United Kingdom)


Published in SPIE Proceedings Vol. 3491:
1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications
George A. Lampropoulos; Roger A. Lessard, Editor(s)

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