The JDSU NPRO 125/126 diode-pumped lasers produces CW, single-frequency output at either 1064 nm or 1319 nm. Key features include fiber-optic or free-space output, narrow linewidth, low noise, frequency tunability, and adjustable power. The NPRO 125/126 lasers are used for a variety of applications including fiberoptic sensing, coherent communications, remote antenna links, optical heterodyne, lidar oscillators, and passive sonar. At the heart of each NPRO 125/126 laser is JDSU's unique, monolithic, NPRO laser cavity delivering true single-frequency laser output. Since its initial development in 1985, NPRO technology has demonstrated a record of reliability and top-level performance.