Coherent light generators – Particular resonant cavity – Specified cavity component
Patent
1990-10-01
1992-01-14
Sikes, William L.
Coherent light generators
Particular resonant cavity
Specified cavity component
359708, 359710, 359720, H01S 308, B29D 1100, G02B 1318
Patent
active
050816390
ABSTRACT:
The present invention provides a diffraction limited, high numerical aperture (fast) cylindrical microlens. The method for making the microlens is adaptable to produce a cylindrical lens that has almost any shape on its optical surfaces. The cylindrical lens may have a shape, such as elliptical or hyperbolic, designed to transform some particular given input light distribution into some desired output light distribution. In the method, the desired shape is first formed in a glass preform. Then, the preform is heated to the minimum drawing temperature and a fiber is drawn from it. The cross-sectional shape of the fiber bears a direct relation to the shape of the preform from which it was drawn. During the drawing process, the surfaces become optically smooth due to fire polishing.
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Reichert Patrick
Snyder James J.
Carnahan L. E.
Hansen Galen J.
Moser William R.
Sartorio Henry P.
Sikes William L.
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