The CS series of high-power open heat sink diode lasers from Opto Power Corp. feature output powers up to 40 W CW. These monolithic diode arrays are available in 830-, 910- or 940-nm wavelengths, and have multiple emitters that are electrically wired in parallel. Typical emitted beam divergence is 36° > 3 <10° i. An optional cylindrical antireflection-coated fiber lens can be installed across the active region to improve the divergence. The diodes are suited for medical, industrial, and other direct thermal and illumination applications.