The best performance in the class, there are two Yokogawa AQ6370D models available, Standard and High Performance. The High-performance model offers the highest wavelength accuracy and dynamic range. The high-performance model can also achieve a higher dynamic range within 0.2nm of the peak wavelength. With the sharper spectral characteristics of the monochromator, spectral signals in close proximity can be separated clearly and measured accurately. The AQ6370D is the ideal model for the characterization and testing of optical components and systems.

The AQ6370D has a wavelength range of 600 to 1700nm with a sensitivity of down to -90dBm. This new specification provides stray-light suppression capability when High dynamic mode, usually taking longer measurement time, is not used. The Yokogawa AQ6370D contributes to shortening the measurement time with the high stray light suppression ratio. The Yokogawa AQ6370D can measure high-power sources such as optical amplifiers and pump lasers for Raman amplifiers, and very weak optical signals as well. Measurement sensitivity can be chosen from seven categories according to test applications and measurement speed requirements. With an advanced monochromator, faster electrical circuits, and noise reduction techniques, the AQ6370D achieves fast measurement speed even when measuring a steep spectrum from DFB-LD or DWDM signals, or when measuring a low-power signal from a broadband light source.