Long period grating in/on planar and channel waveguides: A theory description
作者： De-Long Zhang , Yun Zhang , Yu-Ming Cui , Cai-He Chen , E.Y.B. Pun
DOI: 10.1016/J.OPTLASTEC.2006.08.003
关键词:
摘要: A comprehensive, complete theory suitable for a long period grating (LPG) on/in planar or channel waveguide is described on the basis of coupled mode theory. The aims at key characteristic parameters with respect to effect LPG, including resonance wavelength, transmission power guided in waveguide, full-width half-maximum (FWHM) attenuation band spectrum mode, and coupling coefficient between mode. type relief index modulation, different polarization state combinations resonant slanted structure are considered this influences two modes substrate discussed. role cladding layer demonstrated particular. Finally, expressions sensitivity wavelength as function external temperature, pressure surrounding refractive derived.
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