The Yokogawa AQ6373 is a high-performance optical spectrum analyzer for precise characterization of optical spectra across the visible and near-infrared range. It delivers wavelength accuracy to ±0.05 nm and dynamic range exceeding 60 dB, making it suitable for optical component development, laser characterization, LED testing, and biomedical equipment manufacturing. The instrument combines free-space and fiber-coupled inputs with built-in optical alignment, advanced marker functions, and OSNR measurement capability—all accessible through an intuitive mouse-based interface or responsive touchscreen on the AQ6373E model.
Technical Specifications
Wavelength Performance
• Wavelength range: 350 nm to 1200 nm
• Wavelength accuracy: ±0.05 nm
• Wavelength resolution: 0.02 nm to 10 nm (0.01 nm in 400–470 nm range)
Optical Performance
• Maximum safe input power: +20 dBm
• Level sensitivity: −80 dBm
• Dynamic range: ≥60 dB
Connectivity
• SCPI-compatible remote control with Yokogawa AQ6317/AQ6315 series upgrade support
• Ethernet and GP-IB interfaces (100× and 10× faster than AQ6317 series respectively)
• Multiple USB ports for peripherals and external storage
– Key Features
• Supports single-mode, multimode, and large-core fibers (up to 800 µm) via free-space input
• Built-in optical alignment source and external reference wavelength calibration
• Peak search, spectral width, optical power, and color analysis functions
• Advanced marker capability for power density and integrated power measurements
• Optical filter analysis: simultaneous peak/bottom wavelength, level, crosstalk, and ripple width reporting
• Data logging with time stamps up to 10,000 points per channel
• OSNR measurement functionality
• High-resolution 10.4-inch touchscreen option (AQ6373E)
– Typical Applications
• Optical communication component development and manufacturing
• Laser characterization and spectral analysis
• LED testing and characterization
• Biomedical equipment development
– Compatibility & Integration
The AQ6373 accommodates single-mode, multimode, and large-core fibers with reduced insertion loss variation. Free-space optical input supports GI fibers (50/125 µm and 62.5/125 µm) and large-core configurations. Mouse-based operation with zoom capability ensures intuitive laboratory and production-line deployment.
