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12 August 2019 Frequency stabilized ND:YAG laser for space applications
Thilo Schuldt, Claus Braxmaier, Holger Müller, Günter Huber, Achim Peters, Ulrich Johann
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Proceedings Volume 10568, International Conference on Space Optics — ICSO 2004; 105682Z (2019) https://doi.org/10.1117/12.2307968
Event: International Conference on Space Optics 2004, 2004, Toulouse, France
Abstract
Future space missions rely on the availability of space qualified high precision optical metrology instruments like ultra stable laser sources. Here, we present a compact, frequency-doubled, monolithic Nd:YAG laser (non planar ring-oscillator, NPRO), frequency stabilized to a hyperfine transition in molecular iodine, based on the method of modulation transfer spectroscopy. Using a 10 cm long iodine cell cooled to 1±C and a total light power of ~ 5 mW a frequency stability of 1 • 10-12 for an integration time of τ = 1 s and 3 • 10-13 for τ < 100 s was achieved. By use of an active offset compensation (offset compensation by amplitude modulated sidebands, OCAMS), the frequency stability of this setup was furthermore improved to 4 • 10-14 for τ > 5000 s. This setup therefore fulfillls the basic metrological requirements for the LISA and Darwin missions (with potential beyond). Due to very compact construction, it serves as a study and demonstrator for a future space qualified iodine standard.
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Thilo Schuldt, Claus Braxmaier, Holger Müller, Günter Huber, Achim Peters, and Ulrich Johann "Frequency stabilized ND:YAG laser for space applications", Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105682Z (12 August 2019); https://doi.org/10.1117/12.2307968
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KEYWORDS
Modulation
Laser stabilization
Iodine cells
Iodine
Spectroscopy
Nd:YAG lasers
Laser beam diagnostics
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