CMOS: a compressive sensing based template for high-resolution multi-heterodyne optical spectroscopy

Nikhil Mehta; Zhiwen Liu

doi:10.1117/12.2024720

28 September 2013 CMOS: a compressive sensing based template for high-resolution multi-heterodyne optical spectroscopy

Nikhil Mehta, Zhiwen Liu

Proceedings Volume 8845, Ultrafast Imaging and Spectroscopy; 88450J (2013) https://doi.org/10.1117/12.2024720
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

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.

Citation Download Citation

Nikhil Mehta and Zhiwen Liu "CMOS: a compressive sensing based template for high-resolution multi-heterodyne optical spectroscopy", Proc. SPIE 8845, Ultrafast Imaging and Spectroscopy, 88450J (28 September 2013); https://doi.org/10.1117/12.2024720

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