Abstract
Conference Title: 2016 Conference on Lasers and Electro-Optics (CLEO) Conference Start Date: 2016, June 5 Conference End Date: 2016, June 10 Conference Location: San Jose, CA, USA A sensor system based on a CW EC-QCL was demonstrated for simultaneous atmospheric HOD/H 2 O, N 2 O and CH 4 detection. A 57.6m multi-pass absorption cell was employed. Wavelength modulation spectroscopy was implemented for data processing.