Institute of Electrical and Electronics Engineers, IEEE Photonics Technology Letters, 10(18), p. 1155-1157, 2006
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A photonic crystal grating filter with an extremely wide rejection band and reduced modal back-reflections is proposed and demonstrated with a stopband extinction of 20 dB and insertion loss of less than 5 dB. The reflection-mitigation technique is shown to provide 10-15-dB reduction in reflected power. Guidelines for performance improvement are presented