AMERSFOORT, Netherlands, April 10, 2013 — Yokogawa Europe has enhanced its line of optical test instruments with the AQ6150 and AQ6151 optical wavelength meters, which measure in the 1270- to 1650-nm range. The devices have many features in common with the company’s AQ6370 family of optical spectrum analyzers.They provide high wavelength accuracy (±1 pm for the AQ6150 and ±0.3 pm for the AQ6151) and can carry out simultaneous measurements on up to 1024 channels. The company says they maintain this high performance even in low-level input and can cope with modulated light and optical filter measurement. Their high acquisition and measurement speed make them suitable for the production testing of active optical devices such as tunable lasers for telecommunications applications. Typical acquisition time is 0.3 s, and up to five measurements per second can be carried out in repeat mode. GPIB and Ethernet interfaces are supported, and the meters are SCPI-compatible. The AQ6150 and AQ6151 feature a 5.7-in. bright color LCD display with a variety of viewing modes, including single, multiple or delta wavelength modes and an optical spectrum display. USB ports are provided for data storage devices, mouse and keyboard. Direct operation can be carried out with a mouse, and data access is possible via the LAN interface. Built-in measurement and analysis functions include drift analysis, Fabry-Perot laser analysis and average measurements.