The Agilent 86140A Optical Spectrum Analyzer is a benchtop instrument engineered for precise optical network measurements across research, development, and manufacturing environments. Built on a double-pass monochromator design, it delivers high sensitivity and dynamic range simultaneously with fast sweep times. The 86140A excels at DWDM system verification, optical source characterization, and passive component testing, providing accurate measurements of wavelength and power distribution in optical fiber signals.
Technical Specifications
• Wavelength Range: 600 nm to 1700 nm
• Span Range: 0.2 nm to full range, continuously variable, including zero span
• Resolution Bandwidth: 0.07 nm, 0.1 nm, 0.2 nm, 0.5 nm, 1 nm, 2 nm, 5 nm, or 10 nm selectable
• Wavelength Accuracy:
– After internal calibration (1510–1570 nm): ±0.025 nm
– After internal calibration (1570–1640 nm): ±0.035 nm
– After user calibration (±40 nm range): ±0.05 nm
– After user calibration (full range): ±0.2 nm
– Absolute (factory 2-year cycle): ±0.5 nm
• Wavelength Reproducibility: ±0.003 nm within 1 min
• Tuning Repeatability: ±0.003 nm
• Span Linearity: ±0.05 nm (spans <40 nm), ±0.02 nm (1525–1570 nm)
• Sensitivity: –60 dBm (600–750 nm), –90 dBm (1250–1610 nm)
• Dynamic Range: –70 dBm (1250–1610 nm)
• Maximum Measurement Power: +15 dBm per channel, +30 dBm total (1525–1700 nm)
• Maximum Safe Power: +30 dBm
• Scale Fidelity: ±0.07 dB (autorange off)
• Amplitude Stability: ±0.01 dB (1 min), ±0.02 dB (15 min, at 1310/1550 nm)
• Flatness: ±0.2 dB (1290–1330 nm and 1525–1570 nm)
• Polarization Dependence: ±0.25 dB (1310 nm), ±0.5 dB (1250–1650 nm)
• Sweep Time: <180 ms (50 nm span, auto zero off)
• Absolute Power Accuracy: ±0.3 dB (–20 dBm, 1310/1510 nm)
• Power Requirements: 90 Vac to 260 Vac, 44 to 444 Hz
• Operating Temperature: 0°C to 55°C
• Storage Temperature: –40°C to 70°C
• Relative Humidity: <95% non-condensing
• Weight: 16.5 kg
• Dimensions: 222 mm (H) × 425 mm (W) × 427 mm (L)
– Key Features
• Double-pass monochromator architecture for simultaneous high sensitivity and dynamic range
• Fast sweep capability with sub-180 ms measurement times
• Eight selectable resolution bandwidths from 0.07 nm to 10 nm
• Excellent wavelength reproducibility and tuning repeatability for consistent results
• Stable amplitude performance with drift <0.02 dB over 15 minutes
• Standard optical input connectors; 9/125 µm interface connector required
– Typical Applications
• DWDM system verification and channel characterization
• Optical source power and spectral measurement
• Passive optical component testing and validation
• Wavelength and power distribution analysis in optical fiber networks
– Compatibility & Integration
The 86140A is part of the Agilent 86140 Series, compatible with related models including the 86140B, 86141B, 86142B, 86143B, 86144B, 86145B, and 86146B.

















