Coherent light generators – Particular resonant cavity – Folded cavity
Patent
1993-09-09
1994-10-18
Bovernick, Rodney B.
Coherent light generators
Particular resonant cavity
Folded cavity
372 37, H01S 3083
Patent
active
053575377
ABSTRACT:
A ring laser has a cavity formed by only three elements. The first element is a concave mirror (11) which is wholly reflective to the cavity radiation but is transmissive to pump wavelength radiation. The third element is a concave mirror (13) which provides the output from the cavity. The second element is a gain element in the form of a rod (12) located in a constant axially-aligned magnetic field from a permanent magnet (14). The end faces (12A,12B) of the rod (12) are Brewster angled and additionally one such face (12B) is tilted or wedged by up to 5.degree. to make the cavity non-planar. The rod (12) is made of a material exhibiting the Faraday effect.
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Bovernick Rodney B.
University of Strathclyde
Wise Robert E.
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