Fast wavelength meter 1250-1650nm (182-240THz)

With the increasing demand for communication data, there is a need for larger capacity optical communication transmission systems, which drives optical component and network equipment manufacturers to use coherent communication modules based on wavelength tunable lasers in their transmission backbone networks. At present, the use of wavelength tunable lasers and coherent modules will further expand to urban area networks, and even access networks. The crucial testing for tunable lasers is precise measurement and wavelength calibration. With the continuous increase of communication channels, from the initial 40 waves to the current 800 waves, fast and accurate wavelength testing is more critical than ever before. Our fast wavelength meter is designed and developed to meet this new testing requirement. It is based on Fizeau interferometer technology, combined with temperature controlled interferometer, multi-stage composite interferometer cavity, and linear array CCD detector. Unlike traditional ordinary wavelength meters based on Michelson interferometers, FWM1216-1KHz adopts an all solid state structure and non mechanical moving parts optical design, which enables it to have ultra high measurement rates (up to 1kHz wavelength) while ensuring very high measurement accuracy (1pm)