Phase locked alternating dielectric ridge gas laser

Details Phase locked alternating dielectric ridge gas laser Phase locked alternating dielectric ridge gas laser

1987-12-28

1989-02-21

Sikes, William L.

Coherent light generators

Particular beam control device

Mode locking

372 64, 372 82, H01S 3098

Patent

active

048072346

ABSTRACT:
A phase-locked ridge waveguide gas laser includes a body having two major and two minor limiting surfaces together circumferentially bounding an internal space within the body, which contains a gaseous lasing medium. The gaseous medium is excited at radio frequency with attendant light emission from the gaseous medium. Mirrors are so positioned relative to the body as to provide lasing of the light emission. Respective ridges partition the internal space into at least three laser resonator cavities each sustaining a guided mode of the lasing light emission. The ridges extend in an alternative fashion from one and the other of the major surfaces of the body into the internal space and terminate short of the respectively other of the major surfaces to provide respective gaps. Each of these gaps connects two adjacent ones of the laser resonator cavities for phase-locking the guided modes in such cavities. However, the alternation of such gaps between the other and the one of the major surfaces provides discrimination against higher-order transverse modes.

REFERENCES:
patent: 4373202 (1983-02-01), Laakmann et al.
patent: 4577323 (1986-03-01), Newman et al.
patent: 4688228 (1987-08-01), Newman et al.
L. A. Newman et al; "High Power Coupled CO.sub.2 Waveguide Laser Array"; Appl. Phys. Lett. 48(25), Jun. 23, 1986; pp. 1701-1703.

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