Patent ID: 7796850
Filing Date: 2010-09-14
Classification: G02B

Abstract:
1. A system comprising: one or more optical pathways, each optical pathway comprising: one or more laser sources for generating light; an input port for inputting the light; an integrally constructed lens having a proximal lens surface having a proximal axis, and a distal lens surface having a distal axis that is offset with respect to the proximal axis by a lateral distance; and an optical fiber having a fiber axis; wherein the lateral distance is such that coupling of light inputted into the input port and reflected from the optical fiber back into the input port is lessened compared with coupling of light back into the input port at a zero lateral distance between the proximal and the distal axes of the integrally constructed lens: and wherein in operation, the one or more of the laser sources emits a lowest-order mode and one or more higher-order modes, wherein the lowest-order mode and a higher-order mode are focused by the corresponding integrally constructed lens at least 50 μm apart from each other.