The 828B High-Speed Optical Wavelength Meter from Bristol Instruments is designed to provide accurate wavelength information at an unprecedented rate of 1 kHz. It revolutionizes WDM wavelength testing applications by reducing test times from hours to minutes. The 828B also features time resolution of 1 millisecond, providing the most detailed wavelength characterization of tunable WDM lasers. This application note presents a demonstration of the 828B’s capabilities when used to measure the absolute wavelength of an external cavity diode laser as it was tuned. Download the full paper for more information on the demonstration's test parameters, and results.