NASA NTRS · 19840060521
Programmable, secondary frequency standard based infrared synthesizer using tunable lead-salt diode lasers
Abstract
Quantum phase noise limited Lorentzian power spectral densities were achieved with tunable lead-salt diode lasers. Linewidths as narrow as 22 kHz were observed. A truly programmable infrared synthesizer was produced by frequency-offset-locking the tunable diode lasers to the combination of a stable CO2 (or CO) reference laser and a programmable microwave frequency synthesizer. Absolute frequency accuracy and reproducibility of about + or - 30 kHz (0.000001 kaysers) relative to the primary Cs frequency standard may now be obtained with this technique.
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Freed, C., Bielinski, J. W., Lo, W.. 1983-01-01. Programmable, secondary frequency standard based infrared synthesizer using tunable lead-salt diode lasers. https://ntrs.nasa.gov/citations/19840060521
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