Highly stable two-mirror optical cavity with direct injection
AssigneeCity University of Hong Kong
InventorsJuan Antonio Zapien, Yee Man Kwong, Md Rashedul Huqe
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Abstract
A two-mirror assembly, which includes a first mirror which is an aspherical mirror, a second mirror located away from the first mirror, and an open cavity formed between the first mirror and the second mirror. Embodiments of the invention provide open cavities that are stable cavities including a direct injection stability and a real ray stability.
Claims11
A mirror assembly, comprising:
- a) a first mirror which is an aspherical mirror;
- b) a second mirror located away from the first mirror;
- and
- c) an open cavity formed between the first mirror and the second mirror.
An open cavity, comprising a caustic having shape of a hyperboloid of two sheets;
- the caustic oscillating only in a minor axis direction of an ellipsoid;
- the ellipsoid produced by revolving an ellipse about the major axis.
An open cavity, comprising a caustic having shape of a hyperboloid of one sheet;
- the caustic oscillating in two minor axis directions of an ellipsoid;
- the ellipsoid produced by revolving an ellipse about the minor axis.
An open cavity, comprising a caustic having shape of a hyperbolic paraboloid;
- the caustic oscillating in a major direction of the ellipsoid as well as a minor direction of the ellipsoid that is perpendicular to the major direction;
- the ellipsoid having no rotational symmetry.
Dependencies are inferred from the claim text.