Abstract: A system, for determining characteristics of a beam wavefront and reshaping such wavefront, including: apparatus for sampling the wavefront curvature and generating outputs; apparatus for reshaping the wavefront; and apparatus for receiving the outputs, proportioning the outputs to match the inputs need to drive controls for the reshaping apparatus, and sending the proportioned outputs to the reshaping apparatus. The reshaping apparatus is, preferably, a deformable mirror. The sampling apparatus includes a distorted grating. The method includes: positioning the sampling apparatus in the bean path; positioning a reshaping apparatus in the beam path; sampling the curvature of the wavefront and generating outputs representative of the curvature thereof; sending the generated outputs to the proportioning apparatus; proportioning the outputs to match the inputs needed to drive the controls of the reshaping apparatus; and sending the proportioned outputs to the reshaping apparatus to change the shape thereof.

Abstract: A fiberoptic wavelength combiner comprises: a collimating lens having a first surface and a second surface, opposite the first surface; two input optical fibers secured to the first surface, each input optical fiber conducting light at a wavelength that is different from other input optical fibers; a wedged mirror spaced from the second surface, the wedged mirror having a front surface facing the collimating lens and a rear surface, the front surface provided with a first reflective coating and the rear surface provided with a second reflective coating; and an output optical fiber secured to the first surface, whereby light from the input optical fibers is collimated by the lens and made incident on the wedged mirror and its first and second reflective coatings to thereby direct the light back through the collimating lens onto the output optical fiber. Further, a method of aligning the fiberoptic wavelength combiner is provided.