Patent ID: 8848277
Filing Date: 2014-09-30
Classification: H01S,H05G

Abstract:
1. A system comprising: a laser source producing laser light on a first path; a Bragg acousto-optic modulation device switchable between a first state in which the laser light is deflected from the first path onto a second path toward an irradiation site at which a target material may he irradiated by the laser light and a second state in which the laser light is transmitted in a direction other than onto the second path; a delay device on the second path between the Bragg device and the irradiation site for delaying the laser light; and means for switching the Brag device from the first state to the second state after the laser light has been deflected onto the second path such that at least a portion of any reflections of the laser light from the irradiation site are transmitted in a direction other than along the first path, and thus prevented from reaching the laser source.