Arrangement for monitoring the power level of a photon channeling element

摘要

An arrangement (50) for monitoring the power delivered by a photon channeling element (22) including an integrating chamber (60) to receive an output end of the photon channeling element (22) and an optical surface (32A) positioned to reflect a portion of the laser-light exiting the photon channeling element (22) at substantially normal incidence to the beam centerline (36). The integrating chamber (60) may be adapted to collect substantially all of the laser-light reflected from the optical surface (32A). The arrangement may also include a sensor (52) in optical contact with a portion of the integrating chamber (60) that is out of the path of laser-light reflected from the optical surface (32A). <IMAGE>