An inexpensive, robust, and adhesive-free method and apparatus is disclosed for
efficiently coupling first and second optical components together utilizing a flexure
assembly for fine alignment. An initial three-dimensional rough alignment process
positions the first and second optical components proximate to each other and aligns
them in three dimensions. The first and second components are then misaligned by
a fixed amount, causing a defocus, and then securely fastened together. The fine
alignment process uses standard machine screws, or other easily attainable, robust
tensioning means to progressively increase the tension around the periphery of
the flexure assembly, which causes the flexure to bend and the second optical component
to translate along the longitudinal axis of the flexure assembly and tilt with
respect to the longitudinal axis of the flexure assembly, which re-focuses and
three-dimensionally finely aligns the optical components for optimum coupling efficiency
in a simple and secure manner.
