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Small sidelobe narrow‐passband wavelength filtering in distributed coupling vertical couplers
Author(s) -
Han SangKook
Publication year - 1998
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19980220)17:3<178::aid-mop8>3.0.co;2-g
Subject(s) - passband , wavelength , microwave , optics , coupling (piping) , power dividers and directional couplers , filter (signal processing) , band pass filter , physics , materials science , engineering , electrical engineering , quantum mechanics , metallurgy
A narrow passband with a large sidelobe suppression ratio wavelength filter in a vertical coupler structure using a distributed and a slow coupling scheme is proposed and theoretically investigated. 1.4 nm 3 dB passband and 21 dB sidelobe suppression are obtained at the operating wavelength of 1550.7 nm. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 17: 178–181, 1998.