The Advantest Q8155A is a precision tunable light source engineered for optical component characterization in telecommunications R&D and manufacturing. It delivers stable, narrow-linewidth signals across the C- and L-bands with user-selectable sweep and tuning modes, enabling repeatable wavelength and power control for WDM component testing, optical amplifier validation, and general optical system characterization.
Technical Specifications
• Wavelength Range: 1525 nm to 1630 nm
• Wavelength Resolution: 0.1 pm
• Absolute Wavelength Accuracy: ±10.0 pm
• Relative Wavelength Accuracy: ±7 pm
• Wavelength Repeatability: ±5 pm
• Wavelength Stability: ≤ ±0.8 pm (1 hour, constant ambient temperature)
• Linewidth (typical): 100 kHz
• Optical Output Power: ≥ +2.0 dBm (1540–1620 nm); ≥ 0 dBm (1525–1630 nm); minimum ≤ -30 dBm
• Power Stability: ±0.03 dB (1 hour, constant ambient temperature)
• Power Repeatability (typical): ±0.01 dB
• Power Linearity: ±0.1 dB
• Power Flatness: ±0.2 dB (APS ON); ±0.4 dB (APS OFF)
• Side Mode Suppression Ratio (typical): 50 dBc
• Relative Intensity Noise (typical): -160 dB/Hz
– Key Features
• Variable tuning speed supports 1 nm, 10 nm, and 100 nm steps at 600 ms, 800 ms, and 2.8 s respectively
• Optical modulation function supported for dynamic signal generation
• GPIB remote control for automated measurement system integration
• Fail-safe design: light output disabled when optical connector is removed
• Remote interlock connector prevents unintended laser activation
• Class 3A laser product with active output indicator
– Typical Applications
• WDM component testing and validation
• Optical amplifier characterization
• Wavelength-dependent optical system analysis
• Communications band signal generation (C- and L-bands)
– Compatibility & Integration
GPIB-compliant remote control enables seamless integration into automated test setups. Horizontal mounting required; 10 cm minimum clearance around air vents for cooling fan operation.
