Optical system for lasers

Details Optical system for lasers Optical system for lasers

1976-02-25

1977-09-20

Sikes, William L.

Oscillators

Molecular or particle resonant type

350299, H01S 3081

Patent

active

040500365

ABSTRACT:
A laser configuration is disclosed wherein the active region is of annular cylindrical form. Zero mode azimuth coupling which produces an output beam of low obscuration ratio in the near field, thereby providing a single lobe in the far field, is achieved by the use of an unstable optical resonator characterized by an annular mirror defining one end of the resonator and a two stage axiconic reflector disposed optically between the opposite ends of the resonator.

REFERENCES:
patent: 3909744 (1975-09-01), Wisner et al.
patent: 3950712 (1976-04-01), Chenausky et al.
patent: 3969687 (1976-07-01), Freiberg et al.
patent: 3969688 (1976-07-01), Freiberg et al.

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