Yokogawa Test & Measurement Corporation has announced the release of the AQ6370E optical spectrum analyser (pictured). An upgraded version of the popular AQ6370D, the new model comes equipped with features that enhance performance and improve usability. Equally suitable for industry, universities and research institutions, the AQ6370E can be used to characterise a wide range of components, including lasers for optical communications, optical transceivers, and optical amplifiers.