Common-pass decentered annular ring resonator with improved pola

Details Common-pass decentered annular ring resonator with improved pola Common-pass decentered annular ring resonator with improved pola

1983-09-01

1985-05-07

Sikes, William L.

Coherent light generators

Particular resonant cavity

Specified cavity component

372 95, 372 93, H01S 308

Patent

active

045162441

ABSTRACT:
An improvement of a common-pass, decentered, annular ring resonator (CPDARR) in which the waxicon mirror-reflector component 18 is formed with five reflecting surfaces, two on the central axicon 40, 42 and three on the outer ring axicon 44,46,48. The orientation and curvature of the reflecting surfaces is designed to provide three reflections of an input laser beam impinging on the inner reflector 40 of the central axicon and two reflections of an input wave impinging on the outer reflector surface 48 of the ring axicon (or vice versa). The number of reflections in the waxicon 18 combined with the two reflections in the rear ring mirror 20 of the CPDARR allows all reflecting surfaces to be coated with conventional high-reflectance coating and still provide a uniform-polarity output laser beam from the CPDARR.

REFERENCES:
patent: 3909744 (1975-09-01), Wisner et al.
patent: 4050036 (1977-09-01), Chambers et al.
Chodzko et al; "Annular (HSURIA) Resonators: Some Experimental Studies Including Polarization Effects", Appl. Opt., vol. 19, No. 5, Mar. 1, 1980.
Guha et al; "Performance of an Annular Resonator with a Polarizer in the Annular Leg"; Appl. Opt., vol. 20, No. 3, Dec. 1, 1981.

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