Prismatic Optical Resonator for Laser.
ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA
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A prismatic optical resonator for a laser is formed from two prisms whose bases are inclined at the Brewster angle to the resonator axis, in order to eliminate loss of light by reflection and increase the radiative stability of the laser. In order to reduce the scatter region and obtain confocality, one prism is a transformed tripole with the plane of the base inclined at the Brewster angle to the nonoperating face, with one or both of the other faces being spherical. The other prism is a four-face pyramid with equal angles at the apex. Its opposite faces are mutually perpendicular and the plane of the base is inclined at the Brewster angle to the plane that passes through the two opposite edges of the pyramid.
- Lasers and Masers