Phase stabilization for mode locked lasers

Details Phase stabilization for mode locked lasers Phase stabilization for mode locked lasers

1985-05-01

1987-08-04

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Mode locking

372 29, 372 25, 372 82, 372 38, H01S 3098

Patent

active

046851119

ABSTRACT:
A method and system for stabilizing the phase relationship of two RF-controlled mode locked lasers involves monitoring the output of both lasers and, with a phase detector/comparator, generating a voltage proportional to the phase difference between the two lasers. The voltage is amplified and filtered and fed into a voltage controlled phase delay connected to the mode locker of one of the lasers. The phase delay operates to delay the RF signal to the one laser according to the desired phase relationship. By disclosed methods and apparatus a single laser can also be stabilized to its own RF drive source to reduce noise effects, two lasers can be individually stabilized to a single RF source, or two lasers can each be stabilized to their own separate RF sources.

REFERENCES:
patent: 3713042 (1973-01-01), Kinsel
patent: 3869680 (1975-03-01), Fletcher
patent: 3995231 (1976-11-01), Johnson et al.
patent: 4025875 (1977-05-01), Fletcher et al.
patent: 4375685 (1983-03-01), LeGroff et al.
patent: 4468773 (1984-08-01), Seaton
Kinsel et al.; "A Stabilized Mode-Locked Nd:YAIG Laser Source"; IEEE J.Q.E., Jun. 1969, p. 326.

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