Optical Isolators / Hybrid Components Oplink Optical Isolators / Hybrid components include a variety of fibre-optic isolators and hybrid coupler / isolator components. The isolators include single-mode single-stage and single-mode dual-stage devices. Oplink WTIH series combines a wavelength division multiplexer, tap coupler, and an isolator in a compact package. TCIH series is a tap coupler and isolator hybrid combination based on a patented athermal platform for optical devices. WDIH series hybrid devices combine a 980/1550 (1585)nm filter and a C-band 1550nm (or L-band 1585nm) polarisation-insensitive optical isolator.Learn more