Laser resonator with changable frequency of radiation

Details Laser resonator with changable frequency of radiation Laser resonator with changable frequency of radiation

1987-04-28

1989-07-25

Sikes, William L.

Coherent light generators

Particular beam control device

Mode discrimination

372 12, 372 14, 372 92, 372 97, H01S 3082

Patent

active

048521078

ABSTRACT:
A laser resonator has a semitransparent outlet mirror and a first mirror, with an active element between the mirrors, all the elements arranged perpendicular to the optical axis of the resonator. A shutter is provided behind the first mirror and a second mirror is arranged behind the shutter, perpendicular to the optical axis of the resonator. The second mirror is fully reflective for radiation with stronger laser transition and the first mirror is fully reflective for radiation with weaker laser transition and fully penetrable for radiation with stronger transition. The resonator can change frequency simply by opening or closing the shutter. It can be advantageously used, for example, in the design and construction of laser scalpels.

REFERENCES:
patent: 3679995 (1972-07-01), Sorokin
patent: 4174504 (1979-11-01), Chenausky et al.
patent: 4441186 (1984-04-01), Erickson
patent: 4660204 (1987-04-01), DeWhirst et al.
Bethea; "Megawatt . . . 1.06 and 1.318.mu."; IEEE Journal of Quantum Electronics; Feb. 1973; p. 254.
Higgins; "Computer . . . Fuse Tissue"; News; Lasers and Applications Jan. 1987; p. 22.

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