Patent ID: 7952806
Filing Date: 2011-05-31
Classification: G02B

Abstract:
1. Optical apparatus, comprising: a housing including first and second compartments arranged one above the other; the first compartment including a plurality N of lasers, wherein N is 4 or greater, and each laser is arranged to emit one of a corresponding plurality of laser beams each thereof having one of N different wavelengths; the first compartment further including N first beam-steering minors arranged to direct a corresponding one of the laser beams into the second compartment; and the second compartment including a beam-combining arrangement and N second beam-steering mirrors, each thereof arranged to receive the beam from a corresponding one of the N first beam-steering mirrors and direct that beam to the beam-combining arrangement, the beam combining arrangement being configured to receive the separate beams and combine the beams on a common path and wherein the beam-combining arrangement is a polygonal prism having at least N+1 surfaces, wherein each of the N beams enters the prism via a corresponding one of N of the N+1 surfaces and the beams exit the prism via the other one of the N+1 surfaces.