System for nanosecond modulation of an infrared laser beam by co

Details System for nanosecond modulation of an infrared laser beam by co System for nanosecond modulation of an infrared laser beam by co

1983-09-12

1987-04-07

Buczinski, S. C.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

455611, H01S 300

Patent

active

046564390

ABSTRACT:
Disclosed is a system for coherent transient Stark switching for low power modulation of an infrared laser beam at a gigahertz rate and a nanosecond risetime. When a molecular frequency of a gas that has been excited by an electric field is shifted out of resonance relative to a laser beam by a coherent Stark pulse, the shifted excited molecular frequency will heterodyne with the laser frequency to give a beat signal having improved modulation depth and increased speed for use in space satellite communication.

REFERENCES:
patent: 3806834 (1974-04-01), Johnson et al.
patent: 3842372 (1974-10-01), Pao et al.
patent: 4085387 (1978-04-01), Asawa et al.
John Wessel, Applied Physics Letters, "Nanosecond Modulation at 10 .mu.m by Coherent Stark Switching", Sep. 1, 1982, pp. 411-413.

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