Laser resonator with changable frequency of radiation
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United States of America Patent
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Jul 25, 1989
Grant Date -
N/A
app pub date -
Apr 28, 1987
filing date -
Apr 28, 1986
priority date (Note) -
Expired
status (Latency Note)
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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.
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