
Higher performance successor to market-leading wideband optical spectrum analyser
The AQ6374 offers faster measurements and purging feature for general-purpose optical testing over the 350nm to 1750nm range as well as diffraction grating-based monochromator technology for high-precision measurements. The user interface has also been enhanced.
“The capability of measuring over such a broad wavelength range made the original AQ6315A a very valuable test instrument for those R&D centres who carry out research on light spectra from the visible region to the L-band region”, said Terry Marrinan, Vice-President of Sales & Marketing for Yokogawa Test & Measurement Europe & South East Asia. “The new AQ6374 achieves superior operability and measurement times up to 40 times faster than its predecessor, and also offers a number of new features including the air purging system.”
By inheriting and enhancing the control technologies originally developed for the AQ6370 series, the AQ6374 model achieves better operability and measurement speeds up to 40 times faster. The ability to sample 100001 points of data (100 times as much as the AQ6315A) enables measurement over a broad wavelength range with high resolution, while data-transfer rates during remote control via Ethernet are up to 100 times faster than for the AQ6315A.
The measurement performance achieved by the monochromator technology include a wavelength resolution setting from 0.05 to 10 nm, a wavelength accuracy of ±0.05 nm (at 633 and 1523 nm) or ±0.2 nm (from 350 to 1700 nm), a level accuracy of ±1.0 dB, level sensitivity of -80 dBm (from 900 to 1600 nm), a measurable power range from -80 to +20 dBm, a close‐in dynamic range of 60 dB (peak ± 1.0 nm, resolution 0.05 nm), and a sweep time less than 0.5 sec.
Internal data storage of 512 Mbyte is included, and external data storage is supported via a USB interface. Ethernet RJ-45 and GP‐IB interfaces are also incorporated. A built‐in calibration source is provided for a fullly automatic optical alignment and wavelength calibration, which takes just a few minutes.
The new purging feature is designed to minimise the influence of water-vapour absorption on spectral measurements by continuously supplying a pure purge gas such as nitrogen (or just some dry air) to the monochromator through dedicated connectors on the back panel.
The AQ6374 features an ergonomically designed graphical user interface for maximum user friendliness, incorporating elements such as a full text menu, aggregation of measurement conditions, display of a “hard key” menu the same as the panel layout, and a trace setting menu.
For more information see Yokogawa TMI site
