Coherent light generators – Long wavelength
Patent
1982-08-30
1984-10-02
Davie, James W.
Coherent light generators
Long wavelength
307425, 372 20, 372 37, 372 55, 372 71, H01S 3091
Patent
active
044751974
ABSTRACT:
Laser radiation whose wavelength is in the submillimeter wave spectral region is sent through an intercavity dielectric tube positioned inside a coil. The tube contains a gas having large dipole moments and which may be of the same kind as the input beams lasing gas. In response to current therethrough the coil produces an axial magnetic field. The direction of the magnetic field is parallel to the propagation of light transmitted through the dielectric tube. The frequency of the submillimeter wave laser radiation in the tube is shifted from its normal value. The amount of shift is determined by the current in the coil since the resulting magnetic field produces a change in the mean index of refraction of the gas. Thus, the change in index of refraction causes a shift in the laser radiation frequency because the gas within the coil is also located within the submillimeter wave lasing cavity.
REFERENCES:
patent: 4027948 (1977-06-01), Tanton et al.
patent: 4033670 (1977-07-01), Tanton et al.
Yariv, "Electro-Optic Frequency Modulation in Optical Resonators" Proceeds of the IEEE, vol. 52, No. 6, pp. 719-720, Jun. 1964.
Tanton et al., "Atmospheric Propogation of Submillimeter Waves: Observed . . . Wavelength"; published in Proceedings of the Workshop on Millimeter and Submillimeter Atmospheric Propogation Applicable to Radar and Missile Systems; Technical Report RR-80-3, pp. 90-94, Redstone Arsenal, AL Feb. 1980.
Meyer Harry C.
Osmundsen James F.
Tanton George A.
Bush Freddie M.
Davie James W.
Gibson Robert P.
Lane Anthony T.
The United States of America as represented by the Secretary of
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