The Yokogawa AQ6374 is a benchtop optical spectrum analyzer delivering precise spectral measurements across 350–1750 nm. This instrument spans visible light (380–780 nm) and telecommunications wavelengths, serving R&D and production environments in telecommunications, laser development, optical component testing, biomedical research, and advanced photonics.
Technical Specifications
Wavelength Performance
• Range: 350 to 1750 nm
• Accuracy: ±0.05 nm (at 633 nm and 1523 nm); ±0.2 nm (350–1750 nm)
• Resolution: 0.05 nm to 10 nm (selectable)
Level Measurement
• Accuracy: ±1.0 dB
• Dynamic range: 60 dB (peak ±1.0 nm, 0.05 nm resolution)
• Measurable range: +10 dBm to –70 dBm (400–900 nm); +20 dBm to –80 dBm (900–1600 nm)
• Sensitivity: –70 dBm (400–900 nm), –80 dBm (900–1600 nm)
• Linearity: ±0.2 dB
Acquisition
• Sweep time: <0.5 seconds (100 nm span)
• Sampling points: 100,001
• Polarization dependence: ±0.15 dB
– Key Features
Signal Conditioning
• Built-in cut filter eliminates high-order diffracted light
• Air purge system (nitrogen or dry air) minimizes water-vapor absorption effects
• Built-in calibration source enables automatic optical alignment and wavelength calibration
Analysis Capabilities
Sixteen embedded analysis functions cover WDM/OSNR, optical fiber amplifiers, DFB-LD, FP-LD/VCSEL, LED, spectral width, notch width, SMSR, PMD, optical power, color analysis, optical filters (PK, BTM, WDM variants), and passive device evaluation (FBG, WDM filters).
User Interface
10.4-inch multi-touch capacitive touchscreen with ergonomic graphical interface, full text menus, hard key panel mirroring, tap-and-drag zoom/shift waveform control, and thumbnail file preview.
Data Management
512 Mbyte internal storage; USB connectivity for external data transfer. All-at-Once Trace Filing saves all seven traces in single CSV file.
– Typical Applications
Laser characterization, WDM system validation, optical amplifier testing, component qualification (filters, couplers, FBGs), and spectral analysis in photonics research and manufacturing.
– Compatibility & Integration
Four USB ports support external peripherals and data transfer.
