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The II-VI Laser Enterprise has introduced the 170 W passively cooled and 250 W actively cooled laser bars. Direct diode lasers used in industrial sheet metal cutting, welding and additive manufacturing are achieving up to tens of kilowatts of output power using wavelength and polarization multiplexing of multiple high power GaAs semiconductor laser bars. II-VI’s new passively and actively cooled laser bars enable high efficiency coupling into optical fibers due to their excellent mechanical flatness properties or “low smile”. They also feature a critical and proprietary hard solder technology which is designed to withstand the high power pulsed and on/off operation typical for direct diode lasers.  

The 170 W passively cooled and 250 W actively cooled lasers bars are available over a wide wavelength range from 790 to 1070 µm to enable a wide variety of wavelength multiplexed laser designs. Both products feature II-VI’s proprietary E2 front mirror passivation, preventing catastrophic optical damage (COD) to the laser diode facet even at extremely high output powers. II-VI also offers high power laser optics, based on magneto rheological finishing and IBS coatings, for beam management and to fiber-couple direct diode lasers.   

II-VI Incorporated will showcase its innovations and capabilities at Photonics West 2017. II-VI will launch several new high power semiconductor laser chips, modules and bars as well as high power laser optics for next generation CO2, fiber and direct diode lasers.