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AssigneeThe United States of America as represented by the United States Department of Energy
InventorsJames J. Snyder, Patrick Reichert
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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.
A laser assembly for providing a beam of laser radiation, comprising:
A laser assembly for providing a beam of laser radiation that is substantially collimated along at least one axis, comprising:
A cylindrical microlens for collimating the output of a laser diode, said cylindrical microlens comprising an optical fiber having:
Dependencies are inferred from the claim text.