Method of Emitting on a Specific Wavelength Fraunhofer Line Using a Neodymium Doped Laser Transmitter.
Patent, Filed 31 Dec 91, patented 19 Jan 93,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A method of emitting on a specific wavelength Fraunhofer line of peak seawater transmission and minimum solar radiation is disclosed. This method includes the steps of emitting at least on a specific wavelength of an infrared transition line from a neodymium gain element in an optical resonator frequency tripling the infrared line from the resonator to a specific ultraviolet wavelength in a frequency multiplier and Raman down shifting the specific ultraviolet wavelength a predetermined degree by a predetermined number of Stokes shifts in a predetermined medium in a Raman shifter to produce a high peak-power output at the specific wavelength Fraunhofer line.
- Electrical and Electronic Equipment
- Lasers and Masers