High frequency source having heterodyned laser oscillators injec

Details High frequency source having heterodyned laser oscillators injec High frequency source having heterodyned laser oscillators injec

1993-08-16

1995-01-03

Bovernick, Rodney B.

Coherent light generators

Particular beam control device

Mode locking

H01S 3098

Patent

active

053793099

ABSTRACT:
Two independent laser oscillators are injection-locked to different optical modes of a mode-locked laser, then combined and detected to produce the heterodyne output signal in the microwave to submillimeter wave frequency band. Since the phase fluctuations of the mode-locked laser modes are highly correlated, the phase fluctuations of the heterodyne output signal are greatly reduced, providing a low phase-noise oscillator signal. Since the modes of the mode-locked laser can span hundreds of GigaHertz, the oscillator can be employed to generate microwave, millimeter wave or submillimeter wave frequencies.

REFERENCES:
patent: 4635246 (1987-01-01), Taylor et al.

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