Abstract
AbstractWe investigate the application of segmented reflection gratings in planar devices that can function as either a single‐ or two‐wavelength add/drop filter. The role of the segmented gratings is analogous to that of a blazed grating, but can provide a higher reflectivity level at the Bragg wavelength, eliminate back reflection into the fundamental mode, and provide arbitrarily close channel spacing in the two‐wavelength case. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 163–165, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10855
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