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Fourier-transform, integrated-optic spatial heterodyne spectrometer on a silica-based planar waveguide with 1   GHz resolution

Nicolas K. Fontaine, Katsunari Okamoto, Tiehui Su, and S. J. B. Yoo

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Abstract

Spatial heterodyne spectrometers (SHS) can achieve high resolution with excellent optical throughput. We demonstrate a planar waveguide SHS incorporating 64 asymmetric Mach–Zehnder interferometers and show measurements that verify 1 GHz resolution across a 64 GHz measurement range.

© 2011 Optical Society of America

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