Coherent light generators – Particular pumping means
Patent
1992-05-12
1994-12-13
Scott, Jr., Leon
Coherent light generators
Particular pumping means
372 6, 372 22, 372 13, 372 64, 372 39, 372102, 372 28, 385115, H01S 309
Patent
active
053735269
ABSTRACT:
A diffraction limited working beam at a given frequency is amplified without degrading its diffraction limited quality by diverting a minor portion of the beam as a probe beam, and amplifying the remaining portion of the working beam with a high power pump beam at a different wavelength. The amplification takes place in a host medium that has a rare earth dopant with an energy transition from the pump beam's wavelength to the wavelength of the working beam. The resulting amplified working beam is non-diffraction limited. The probe beam is frequency modulated and coupled with the amplified working beam in a second host medium that also has a rare earth dopant. Energy is transferred from the amplified working beam to the modulated probe beam through a resonant energy transfer in the second host medium, producing an amplified output beam at the working beam frequency that retains the diffraction limited quality of the probe beam.
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Lam Juan F.
Pikulski Joseph L.
Yen Huan-Wun
Denson-Low W. K.
Duraisamy Vijayalakshmi D.
Hughes Aircraft Company
Jr. Leon Scott
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