Third order Bragg grating filters in small SOI waveguidesSeong Phun Chan, Vittorio M. N. Passaro, Goran Z. Mashanovich, Graham Ensell and Graham T. ReedJ. Eur. Opt. Soc.-Rapid Publ., 2 (2007) 07029DOI: https://doi.org/10.2971/jeos.2007.07029