Realization of a flat-band superprism on-chip from parallelogram lattice photonic crystals. 2018

Jeremy Upham, and Boshen Gao, and Liam O'Faolain, and Zhimin Shi, and Sebastian A Schulz, and Robert W Boyd

By optimizing the dispersion curve of a parallelogram-based 2D photonic crystal superprism for constant angular group velocity dispersion over a broad bandwidth, we designed a device capable of experimentally demonstrating linear dispersion from 1500 to 1600 nm with clear separation of as many as eight channels, while maintaining a compact footprint.

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