Patent ID: 8004770
Filing Date: 2011-08-23
Classification: G02B,G03F,H01S

Abstract:
1. A system, comprising: first and second curved reflecting devices; a beam splitter; and a divergence optical element, wherein the beam splitter and the divergence optical element are combined into a single element and are configured to reflect and diverge a first portion of a beam, which begins a cycle during which the beam travels through the system, and to transmit a second portion of the beam to generate at least a portion of an output beam, wherein during the cycle the combined beam splitter and divergence optical element direct the first portion of the beam along a beam path between the first and second reflecting devices, such that the first portion of the beam traverses between the first and second reflecting devices more than once, wherein the cycle ends after traversal between the first and second reflecting devices, such that a first part of the first portion of the beam is reflected by the combined beam splitter and divergence optical element and exits the system to generate another portion of the output beam and a second part of the first portion of the beam is transmitted through the combined beam splitter and divergence optical element to repeat the cycle.