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Proceedings Paper

CMOS: a compressive sensing based template for high-resolution multi-heterodyne optical spectroscopy
Author(s): Nikhil Mehta; Zhiwen Liu
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Paper Abstract

We perform numerical study of Compressive Multi-heterodyne Optical Spectroscopy [CMOS], which is based on multiple heterodyne measurements using a dynamically encoded frequency comb. Compressive sensing enables us to utilize sparsity in typical optical spectra of interest to reduce the number of heterodyne measurements. Numerical results are presented to demonstrate retrieval of coherent and incoherent sparse hypothetical Lorentzian spectra over a 42 nmwide bandwidth, sampled every 100 MHz (~0.2 pm), by using as few as 25% measurements.

Paper Details

Date Published: 28 September 2013
PDF: 7 pages
Proc. SPIE 8845, Ultrafast Imaging and Spectroscopy, 88450J (28 September 2013);
Show Author Affiliations
Nikhil Mehta, The Pennsylvania State Univ. (United States)
Zhiwen Liu, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 8845:
Ultrafast Imaging and Spectroscopy
Zhiwen Liu, Editor(s)

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