Frequency addition source of optical radiation
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Frequency addition source of optical radiation (acronym FASOR) is used for a certain type of
AMOS. The laser light is produced in a sum-frequency generation
process from two solid-state laser sources that operate at different wavelengths. The frequencies of the sources add directly to a summed frequency. Thus, if the source wavelengths are and , the resulting wavelength is
Application
The FASOR was initially used for many
resonant in a cavity containing a lithium triborate
(LBO) crystal, which sums the frequencies yielding 589.159 nm light.
References
- ^ Denman, C. A., Drummond, J. D., Eickhoff, M. L., Fugate, R. Q., Hillman, P. D., Novotny, S. J., & Telle, J. M. (2006, July). Characteristics of sodium guidestars created by the 50-watt FASOR and first closed-loop AO results at the Starfire Optical Range. In Advances in Adaptive Optics II (Vol. 6272, pp. 508-519). SPIE.
- ^ Drummond, J., Telle, J., Denman, C., Hillman, P., & Tuffli, A. (2004). Photometry of a sodium laser guide star at the Starfire Optical Range. Publications of the Astronomical Society of the Pacific, 116(817), 278.
- ^ Denman, C., Moore, G., Drummond, J., Eickhoff, M., Hillman, P., Telle, J., ... & Fugate, R. (2006, November). Two-Frequency Sodium Guidestar Excitation at the Starfire Optical Range. In CFAO, Laser 2006 workshop.
- ^ Kane, T. J., Hillman, P. D., Denman, C. A., Hart, M., Phillip Scott, R., Purucker, M. E., & Potashnik, S. J. (2018). Laser remote magnetometry using mesospheric sodium. Journal of Geophysical Research: Space Physics, 123(8), 6171-6188.