This section is involved in research and development on high power lamp pumped Nd:YAG and Fiber Lasers. We have developed a robust 250 W average power, 2-20 ms pulse duration and 5 kW peak power pulsed industrial Nd:YAG laser with 400 μm time shared fiber optic beam delivery. A lamp pumped CW Nd:YAG laser with 880 W output power and with 600 μm fiber optic beam delivery for various material processing applications has also been developed. We have upgraded 250 W average power industrial Nd:YAG laser with 500 W average power, 10 kW peak power pulsed Nd:YAG laser with fiber optic beam delivery for enhancing material processing capabilities. With in-house developed fiber coupled industrial Nd:YAG lasers, cutting of 18 mm thick ss sheets and welding up to a depth of 4 mm has been performed. We are also working on development of application specific fixtures for material processing applications with fiber coupled high average power Nd:YAG lasers. Research and development on CW and pulsed fiber lasers is also underway. We have achieved up to 50 W CW output at 1096 nm from Yb-doped fibers with an optical-to-optical conversion efficiency of 70%. We are also working on Er-Yb co-doped fiber lasers with an output wavelength of 1540-1570 nm for medical applications. Several trun key goals are being executed for industry and DAE units.

A view of 250 W average power and 5kW peak power industrial Nd:YAG laser with multi-port fiber optic beam delivery		A view of 500 W average power and 10kW peak power industrial Nd:YAG laser with fiber optic beam delivery
A view of 880 W lamp pumped CW industrial Nd:YAG laser with fiber optic beam delivery		A view of 50 W CW Yb-doped fiber laser
Activities of the section: Development of high power lamp pumped pulsed and CW Nd:YAG lasers Development of application specific tools/fixtures for laser material processing Establishing laser system and material processing parameters for turn key projects Research and development of high power CW and pulsed fiber lasers Development of passive fiber components for fiber laser Group Members List of Publications