capable of measuring the optical power and wavelength of semiconductor lasers including short wavelength lasers, high power pumps, and fiber lasers. A variety of measurement heads cover wavelength ranges from 350 to 1650 nm for power only or power and wavelength measurement. The OMM-6810B is loaded with standard features such as log/linear display modes, auto ranging, user calibration, reference measurement capability, analog output and IEEE-standard GPIB interface to make this instrument a cost-effective laser diode development or production test tool.