Programmable, secondary frequency standard based infrared synthesizer using tunable lead-salt diode lasersQuantum 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.
Document ID
19840060521
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Freed, C. (General Motors Research Labs. Warren, MI, United States)
Bielinski, J. W. (MIT, Lincoln Laboratory, Lexington MA, United States)
Lo, W. (GM Research Laboratories Warren, MI, United States)