Modulated laser source for optical storage

Details Modulated laser source for optical storage Modulated laser source for optical storage

1987-05-06

1988-05-31

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372 26, 372 22, 372 82, H01S 310

Patent

active

047486317

ABSTRACT:
A time modulated source of frequency doubled laser radiation is described in which a non-linear crystal part of a stripline electrical circuit is mounted within a laser cavity so that the laser beam at a fundamental frequency impinges on and propagates through the non-linear crystal. A high bandwidth electrical data signal is coupled into the stripline electrical circuit to produce an electric field across the non-linear crystal so that an output beam is produced at a wavelength corresponding to the second harmonic of the fundamental frequency which represents a frequency doubled output beam modulated in accordance with the high bandwidth data signal, an alternate embodiment for producing the time modulated source of frequency doubled laser radiation has the non-linear crystal placed in a resonant microwave cavity. A high bandwidth electrical signal modulates the intensity of the microwave electric field across the non-linear crystal so that an output beam is produced at a wavelength corresponding to the second harmonic of the fundamental frequency which represents a frequency doubled output beam modulated in accordance with the high bandwidth data signal.

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M. A. Henesian, J. Goldhar, and R. A. Haas, "Electro-Optic Harmonic Conversion Switch for Large-Aperture Multipass Laser Systems," Aug. 1984, vol. 9, No. 8, Optics Letters.

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