Bristol’s 828 Series High-Speed Optical Wavelength Meter revolutionizes the production of tunable transmitter lasers used in WDM applications with a fast, sustained measurement rate of 1 kHz to dramatically reduce test times. Wavelength is measured to an accuracy as high as ± 0.3 pm. Its rugged design provides reliable, long-term operation, backed by a 5-year warranty on all parts and labor.