DESCRIPTION:

The Yokogawa AQ6375B-10 is a bench-top optical spectrum analyzer engineered for high-performance measurements across the long-wavelength infrared region from 1200 nm to 2400 nm. Designed for research, development, manufacturing, and validation of optical devices, the instrument delivers the accuracy, sensitivity, and resolution required for advanced photonics applications.

The AQ6375B-10 is particularly suited to optical communications, laser characterization, environmental gas sensing, medical photonics, industrial materials research, and spectroscopy applications operating within the 2 m wavelength region. The analyzer provides high-resolution measurements with wavelength resolution down to 0.05 nm while maintaining excellent sensitivity down to -70 dBm.

To improve measurement accuracy at longer wavelengths, the instrument incorporates gas purge ports that minimise the effects of atmospheric water vapour absorption. A built-in cut filter reduces high-order diffracted light, ensuring reliable measurements across the full operating range. Yokogawa's Double Speed Mode enables sweep times up to twice as fast as standard operation while maintaining high measurement performance.

The free-space optical input design provides flexibility for both single-mode and multimode fiber measurements while reducing maintenance requirements associated with connectorised optical systems. Fast auto-calibration and integrated analysis functions further streamline laboratory and production test workflows.

Technical Specifications

• Model: AQ6375B-10
• Instrument type: Optical Spectrum Analyzer
• Wavelength range: 1200 nm to 2400 nm
• Wavelength resolution: 0.05 nm to 2.0 nm
• Wavelength accuracy: ±0.05 nm (typical telecom region)
• Sensitivity: down to -70 dBm
• Dynamic range: up to 55 dB
• Maximum input level: +20 dBm
• Free-space optical input
• Single-mode fiber compatible
• Multimode fiber compatible
• Built-in cut filter
• Gas purge ports
• Fast auto-calibration
• Double Speed Mode
• Ethernet interface
• USB interface
• GPIB interface
• RS-232 interface

Key Features

• 1200 nm to 2400 nm wavelength coverage
• High-resolution optical spectrum analysis
• Sensitivity down to -70 dBm
• Up to 55 dB dynamic range
• Double Speed Mode operation
• Gas purge capability for enhanced accuracy
• Built-in high-order diffraction suppression filter
• Free-space optical input design
• Suitable for telecommunications research
• Suitable for laser characterization
• Suitable for environmental sensing applications
• Suitable for spectroscopy and photonics research
• Fast auto-calibration functionality
• Single-mode and multimode fiber compatibility
• Laboratory and production test applications