Abstract

Over the last decade, Frequency combs (FCs) have triggered new attractive methods for spectroscopy and have been successfully implemented in the visible and near-infrared spectral region. combined with Fourier transform spectrometers, it shows remarkable advantages of large spectral high spectral resolution and high sensitivity. For trace gas detection, extending the wavelength of FCs in mid-infrared region is beneficial, as many molecules exhibit here their strongest absorption lines. methods have been proposed to extend FCs in the mid-infrared region [1]. Among those methods, Parametric Oscillators (OPOs) are used as efficient light converters [2].

© 2013 IEEE