Unstable laser resonator having radial propagation

Details Unstable laser resonator having radial propagation Unstable laser resonator having radial propagation

1975-04-14

1976-04-13

Sikes, William L.

Oscillators

Molecular or particle resonant type

350299, H01S 3081

Patent

active

039507122

ABSTRACT:
A new resonator concept which is especially useful in chemical laser applications is disclosed. A ring end mirror, a conical folding mirror and a circular end mirror are combined to form an unstable resonator including a radial direction propagation having a gain medium region and a region of axial direction propagation. Alternate embodiments of the invention include the use of nonreflective fins in the region containing the working medium to suppress superfluorescence and an aerodynamic window to keep depleted working medium out of the path of the resonant beam.

REFERENCES:
patent: 3241085 (1966-03-01), Marcatili
patent: 3454897 (1969-07-01), Strauss
patent: 3739296 (1973-06-01), Beiser
Casperson, Properties of a Radial Mode CO.sub.2 Laser, IEEE J. Quant. Elect. Vol. QE9, No. 4, (Apr., 1973), pp. 484-488.

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