Sang, FengqiaoRosborough, VictoriaFridlander, JosephGambini, FabrizioBrunelli, Simone ŠuranChen, Jeffrey R.Kawa, Stephan R.Numata, KenjiStephen, MarkColdren, LarryKlamkin, Jonathan2025-01-082025-01-082022-03-06Sang, Fengqiao, Victoria Rosborough, Joseph Fridlander, Fabrizio Gambini, Simone Šuran Brunelli, Jeffrey R. Chen, Stephan R. Kawa, et al. “Dual Laser Indium Phosphide Photonic Integrated Circuits for Remote Active Carbon Dioxide Sensing.” In Optical Fiber Communication Conference (OFC) 2022 (2022), Pape . Optica Publishing Group, 2022. https://doi.org/10.1364/OFC.2022.https://doi.org/10.1364/OFC.2022.Tu2E.3http://hdl.handle.net/11603/37192Optical Fiber Communication Conference 2022, San Diego, California United States, 6–10 March 2022Two generations of indium phosphide photonic integrated circuits were fabricated, characterized, and their performance compared. Successful sampling of carbon dioxide was performed in a laboratory setting under continuous wave sampling.3 pagesen-USThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Public Domainhttps://creativecommons.org/publicdomain/mark/1.0/Laser sourcesCarbon dioxide lasersDistributed feedback lasersFrequency modulationTunable lasersInfrared lasersText