Augé S, Monmayrant A, Pelloquin S, Doucet J B, Gauthier-Lafaye O
Opt Express. 2017 May 29;25(11):12415-12420. doi: 10.1364/OE.25.012415.
We demonstrated Graded Cavity Resonator Integrated Grating Filters (G-CRIGFs) that are narrowband spectral reflectors, spectrally tunable over more than 40 nm around 850 nm using a spatial gradient. A simple analytical model is introduced and validated experimentally to determine spectral performance of G-CRIGFs from the spectral properties of a standard Cavity Resonator Integrated Grating Filter (CRIGF).