The Advantest Q8381 Optical Spectrum Analyzer is a benchtop instrument engineered for precise optical signal analysis across the ultraviolet to mid-infrared spectrum. It delivers high-resolution measurement of optical components, transceivers, and complete systems in communications and networking environments. The combination of broad wavelength coverage, fast acquisition, and specialized pulse-light measurement capability makes it suitable for both laboratory characterization and production testing.
Technical Specifications
Wavelength Performance
• Operating range: 350 nm to 1750 nm
• Resolution: 100.0 pm
• Wavelength accuracy: ±0.5 nm (350–1750 nm)
• Wavelength linearity: ±0.02 nm (1510–1570 nm)
• Wavelength repeatability: ±0.005 nm
Signal Measurement & Dynamic Range
• Power range: –85 dBm to +10 dBm (1.1–1.6 µm)
• Input sensitivity: –85 dBm
• Level measurement accuracy: ±1.5 dB
• Polarization dependence: ±0.1 dB or less
• Maximum input power: +10 dBm
Measurement Speed
• Standard mode sweep: 0.8 seconds or less (200 nm span)
• Full measurement cycle: less than one second with linear or logarithmic scaling
– Key Features
• Pulse light measurement function for low-level and discontinuous signals
• Power monitoring capability
• Automatic optimum measurement condition setting
• Automatic peak search
• Half-value width measurement
• Luminosity compensation display
• Side-mode suppression ratio (SMSR) measurement
– Typical Applications
Optical communications testing, component characterization, transceiver validation, and system-level optical signal analysis across UV and infrared wavelength bands.
– Compatibility & Integration
Benchtop configuration suitable for laboratory and production environments. Functionally equivalent to the AQ6315E across specified wavelength range.
