Face-pumped laser with diffraction-limited output beam

Details Face-pumped laser with diffraction-limited output beam Face-pumped laser with diffraction-limited output beam

1978-10-02

1980-07-22

Sikes, William L.

Oscillators

Molecular or particle resonant type

350299, H01S 308

Patent

active

042142164

ABSTRACT:
Diffraction-limited output beam quality is achieved with a laser having an elongated homogeneous active medium pumped through two optically plane, parallel faces and situated within a resonant cavity defined by a plane reflector at one end and a concave spherical reflector at the opposite end. For a ray of optical energy passing through the active medium, there is a plane containing the ray in which the effective optical length in the medium is greater than the effective optical length in the orthogonal plane containing the ray. The separation between the cavity reflectors is selected to form a stable resonator in one of these planes and an unstable resonator in the orthogonal plane.

REFERENCES:
patent: 3633126 (1972-01-01), Martin et al.
Siegman, A. E., Unstable Optical Resonators, Applied Optics, vol. 13, No. 2 (Feb. 1974), pp. 353-367.
Chun et al., Resonant Mode Analysis of Single-Mode Face Pumped Lasers, Applied Optics, vol. 16, No. 4 (Apr. 1977), pp. 1067-1069.

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