Analysis and design of almost-periodic vertical-grating-assisted codirectional coupler filters with nonuniform duty ratios

Chern, G.W.G.W.ChernLON A. WANG2020-06-042020-06-042000https://scholars.lib.ntu.edu.tw/handle/123456789/497276Analysis and design of almost-periodic vertical-grating-assisted codirectional coupler filters with nonuniform duty ratiosjournal article10.1364/AO.39.0046292-s2.0-0012939053https://www.scopus.com/inward/record.uri?eid=2-s2.0-0012939053&doi=10.1364%2fAO.39.004629&partnerID=40&md5=787250d2e109b1cdba1374ad7334339b