Optical heterodyne-enhanced chirped laser dispersion spectroscopy

Opt Lett. 2017 Jul 15;42(14):2770-2773. doi: 10.1364/OL.42.002770.

Abstract

A proof-of-concept heterodyne-enhanced chirped laser dispersion spectroscopy system is presented. In remote sensing systems where low return powers are expected, the addition of an optical local oscillator and subsequent nonlinear processing can provide improved performance in chirped laser dispersion spectroscopy. Details about the system configuration, phase noise cancellation, and experimental verification are discussed.