Measurements on passive tunable optical filters for DWDM
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Abstract
Measurements on a passive optical fibre tunable filter are presented. The device is based on a loop mirror in a ring resonator. The loop mirror allows tuning by changing the coupling coefficient of a coupler. The novel filter structure allows planar optical integration for having higher free spectral ranges. Novel and simple design equations for the filter parameters and the tuning process are reported. There is a good agreement between measurements and theory.
Description
Measurements on a passive optical fibre tunable filter are presented. The device is based on a loop mirror in a ring resonator. The loop mirror allows tuning by changing the coupling coefficient of a coupler. The novel filter structure allows planar optical integration for having higher free spectral ranges. Novel and simple design equations for the filter parameters and the tuning process are reported. There is a good agreement between measurements and theory.
Keywords
Optical filters, Wavelength division multiplexing, Resonator filters, Optical fiber filters, Mirrors, Optical ring resonators, Optical tuning, Optical fiber, Passive filters, Integrated optics, Optical filters, Wavelength division multiplexing, Resonator filters, Optical fiber filters, Mirrors, Optical ring resonators, Optical tuning, Optical fiber, Passive filters, Integrated optics