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Hybrid silica/polymer long period gratings for wavelength filtering and power distribution

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Academic year: 2021

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Figure

Fig. 1. (a) Grating structure based on the lower cladding corrugation, where Λ is the grating period and λ R is the resonance wavelength
Fig. 2. (Color online) Resonance wavelength as a function of grating period for the fundamental core mode to the first four  clad-ding modes of a 6 μm × 3 μm waveguide with a 6 μm thick upper cladding.
Fig. 4. SEM picture of etched lower SiO 2 cladding layer; the height of the patterns is 100 nm.
Fig. 8. Temperature dependence of the fabricated polymer/silica hybrid LPG.
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