This talk will summarize JPL’s effort on development of a compact, broadband optical frequency combs in the 3-5 μm wavelength range and its integration into a multi-heterodyne comb spectroscopy system. The prospects for selective and simultaneous interrogation of multiple absorption features will be also discussed.
We report on the development of low-dissipation single-mode quantum cascade lasers for mid-infrared laser absorption spectroscopy, including device design, fabrication, and packaging. We focus on packaged laser designs optimized for operation as sources in planetary science instruments, specifically for future in situ missions to measure isotope ratios.
Human spaceflight environment monitoring is traditionally performed via mass spectrometry and electrochemical sensing. Meanwhile, tunable lasers have been successfully employed in industry and research applications for half a century but not for human spaceflight. Advances in tunable laser quality and robustness now makes them attractive for human spaceflight.