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AssigneeThe Secretary of State for Business, Innovation & Skills of Her Majesty's Britannic Government
InventorStephen Andrew Webster
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A Fabry-Perot etalon is provided with first and second partially reflecting mirrors (12, 14) attached to a cuboidal spacer (16). The spacer (16) has a cylindrical bore (18) through its center and the mirrors (12, 14) are bonded, on axis, to opposite ends of this bore (18). Four support elements (22-28) are arranged symmetrically with respect to the axis in a tetrahedral configuration and constrain the cuboidal spacer (16) in all degrees of freedom. The cuboidal spacer (16) is flattened at its vertices, which results in modified distortion of the spacer (16) under the action of a compressive force acting through the supports. This structure of etalon provides insensitivity to inertial forces due to acceleration in all six degrees of freedom (three linear and three rotational) simultaneously with insensitivity to differential forces.
A Fabry-Perot etalon including first and second partial mirrors spaced from one another by a spacer element in the shape of a cube, having six sides arranged in three opposed pairs of sides, the two sides of one of the opposed pairs providing support, respectively, for the first and second mirrors;
A Fabry-Perot etalon including first and second partial mirrors spaced from one another by a spacer element in the shape of a cube, an optical cavity extending between the first and second partial mirrors and having an optical axis, and a plurality of support elements for supporting the spacer element and being located on the spacer element symmetrically about the optical axis of the cavity.
A Fabry-Perot etalon including first and second partial mirrors spaced from one another by a spacer element in the shape of a cube, which spacer element is provided with sides which provide support, respectively, for the first and second mirrors;
Dependencies are inferred from the claim text.