@article{628d566eb5844f4d89afcd07815d7f42,
title = "Dynamic computational optical fringe mitigation in tunable laser absorption spectroscopy",
abstract = "In optical spectroscopic systems where unwanted optical scattering cannot be eliminated, Fabry-P{\'e}rot etalons cause unpredictable changes in the spectral background. Frequent system calibration is then required to maintain the desired measurement accuracy, which presents a major limitation to the spectrometer. We introduce a computational approach to mitigate the adverse effects of optical fringing without hardware modifications. Motivated by experimental observations of complicated fringe behaviors, we simplify the problem by decomposing the fringe background into component etalons that can be addressed according to their individual characteristics. The effectiveness of the proposed method is demonstrated on a silicon photonic methane sensor, where accurate measurements of methane concentration are obtained from spectral data strongly affected by optical fringes.",
author = "Teng, {Chu C.} and Zhang, {Eric J.} and Chi Xiong and Green, {William M.J.} and Gerard Wysocki",
note = "Funding Information: Advanced Research Projects Agency - Energy (DE-AR0000540); National Energy Technology Laboratory (DE-FE0029059); National Aeronautics and Space Administration. The authors recognize the IBM Microelectronics Research Laboratory for assistance with sensor fabrication. The authors also acknowledge Yifeng Chen for fruitful discussions. The information, data, or work presented herein was funded in part by the U.S. Department of Energy, Advanced Research Projects Agency-Energy (ARPA-E), under Award Number DE-AR0000540 and the U.S. Department of Energy NETL grant # DE-FE0029059, and Princeton University. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. This work was in part supported by a subcontract from the Jet Propulsion Laboratory (JPL), California Institute of Technology, under contract with NASA. Funding Information: The authors recognize the IBM Microelectronics Research Laboratory for assistance with sensor fabrication. The authors also acknowledge Yifeng Chen for fruitful discussions. The information, data, or work presented herein was funded in part by the U.S. Department of Energy, Advanced Research Projects Agency-Energy (ARPA-E), under Award Number DE-AR0000540 and the U.S. Department of Energy NETL grant # DE-FE0029059, and Princeton University. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. This work was in part supported by a subcontract from the Jet Propulsion Laboratory (JPL), California Institute of Technology, under contract with NASA. Publisher Copyright: {\textcopyright} 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement",
year = "2020",
month = dec,
day = "21",
doi = "10.1364/OE.413053",
language = "English (US)",
volume = "28",
pages = "39017--39023",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "26",
}