Patent ID: 6089741
Filing Date: 2000-07-18
Classification: G02B

Abstract:
Apparatus for coupling high intensity light, having an intensity distribution defined by an image profile, into a receiving target, comprising:a spatial filter having an input end which receives said high intensity light, unguided modes of said intensity light being dissipated within the length of said spatial filter, wherein an image profile of maximum light intensity incident on said input end being transmitted at an output end of said spatial filter with a broadened spatial intensity profile;means for filtering wavelengths below approximately 400 nm and above approximately 700 nm from said high intensity light before being transmitted through said spatial filter;a heat sink in proximity to said spatial filter absorbing heat generated by said spatial filter and conducting said heat away from said spatial filter; anda receiving optical fiber target for receiving at an input thereof substantially only guided modes of light from said spatial filter, and outputting said guided modes of light at an output end thereof.