The Agilent 86146B Optical Spectrum Analyzer is a benchtop instrument for precise spectral analysis across 600 nm to 1700 nm. Its patented double-pass monochromator design delivers simultaneous high sensitivity and dynamic range with sweep times typically under 180 ms, making it ideal for characterizing DWDM components, broadband passive components, and active optical devices including DFBs, FP lasers, EDFAs, Raman amplifiers, and SOAs. The instrument offers wavelength accuracy to ±0.01 nm (1480–1570 nm after internal calibration) and repeatability of ±0.002 nm. Its specialized filter mode enables fast-tuning single DWDM channel isolation with low insertion loss and high wavelength accuracy, and supports time-resolved chirp measurements.
Technical Specifications
Wavelength Performance
• Range: 600 nm to 1700 nm
• Accuracy: ±0.01 nm (1480–1570 nm) after internal calibration; ±0.025 nm (1570–1620 nm); ±0.01 nm with external reference; ±10 pm using internal gas cell calibrator (1480–1565 nm)
• Repeatability: ±0.002 nm
• Linearity: ±0.01 nm typical (1525–1570 nm)
• Span: 0.2 nm to full range, zero span capable
Resolution & Sensitivity
• Resolution Bandwidth: 0.5 dB, 1.0 dB, 3.0 dB nominal settings; 60 pm to 10 nm variable; 0.04 nm actual
• Sensitivity: –90 dBm
• Dynamic Range: –60 dB (±0.8 nm or ±100 GHz at 1550 nm); –70 dB at 0.5 nm (high-performance models)
Amplitude Specifications
• Accuracy: ±0.5 dB; ±0.35 dB at –20 dBm (1550 nm, 20–30°C)
• Stability: ±0.01 dB (1 minute); ±0.02 dB (15 minutes)
• Polarization Dependency: ±0.12 dB (1310 nm); 0.05 dB (high-performance models)
Performance
• Sweep Time: <180 ms typical (50 nm span, auto zero off)
• Internal Path: 50 µm
– Key Features
• Double-pass monochromator design
• Single-mode monochromator output path
• SCPI remote control over LAN
• Benchtop form factor: 222 mm H × 425 mm W × 427 mm D, 16.5 kg
– Typical Applications
• DWDM component characterization
• Single DWDM channel filtering and isolation
• Time-resolved chirp measurements
• Active and passive optical component testing
– Compatibility & Integration
Remote operation via SCPI commands over LAN. Standard electrical power specifications apply.
