@inproceedings{4b7300be8d454edc9a62cd27aba1470c,
title = "Progress on laser technology for proposed space-based sodium lidar",
abstract = "We propose a nadir-pointing space-based Na Doppler resonance fluorescence LIDAR on board of the International Space Station (ISS). The science instrument goal is temperature and vertical wind measurements of the Earth Mesosphere Lower Thermosphere (MLT) 75-115 km region using atomic sodium as a tracer. Our instrument concept uses a high-energy laser transmitter at 589 nm and highly sensitive photon counting detectors that permit range-resolved atmospheric-sodium-temperature profiles. The atmospheric temperature is deduced from the linewidth of the resonant fluorescence from the atomic sodium vapor D2 line as measured by our tunable laser. We are pursuing high power laser architectures that permit limited day time sodium lidar observations with the help of a narrow bandpass etalon filter. We discuss technology, prototypes, risks and trades for two 589 nm wavelength laser architectures: 1) Raman laser 2) Sum Frequency Generation. Laser-induced saturation of atomic sodium in the MLT region affects both sodium density and temperature measurements. We discuss the saturation impact on the laser parameters, laser architecture and instrument trades. Off-nadir pointing from the ISS causes Doppler shifts that effect the sodium spectroscopy. We discuss laser wavelength locking, tuning and spectroscopic-line sampling strategy.",
keywords = "Mesosphere, Raman laser, Sodium lidar, Sum-frequency generation",
author = "Krainak, {Michael A.} and Yu, {Anthony W.} and Li, {Steven X.} and Yingxin Bai and Kenji Numata and Chen, {Jeffrey R.} and Fahey, {Molly E.} and Frankie Micalizzi and Konoplev, {Oleg A.} and Diego Janches and Gardner, {Chester S.} and Allan, {Graham R.}",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Solid State Lasers XXVII: Technology and Devices 2018 ; Conference date: 29-01-2018 Through 01-02-2018",
year = "2018",
doi = "10.1117/12.2290471",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Clarkson, {W. Andrew} and Shori, {Ramesh K.}",
booktitle = "Solid State Lasers XXVII",
}