The Agilent 86145B Optical Spectrum Analyzer is a portable instrument for spectral analysis across optical networks, with particular strength in WDM (Wavelength Division Multiplexing) applications. It delivers precise power and wavelength measurements alongside built-in test applications that streamline complex, repetitive measurements for WDM systems, lasers, optical amplifiers, and passive components—enabling faster, more repeatable results in production and field environments.
Technical Specifications
Wavelength Performance
• Operating range: 600 nm to 1700 nm
• Span range: 0.2 nm to full range; zero span capable
• Wavelength accuracy: ±0.01 nm (1480–1570 nm) with internal calibration; ±0.025 nm (1570–1620 nm); ±10 pm (1480–1565 nm) using internal gas cell calibrator
• Linearity: ±0.01 nm (1525–1570 nm)
• Repeatability: ±0.002 nm (wavelength and tuning)
Amplitude Characteristics
• Amplitude accuracy: ±0.35 dB (at –20 dBm, 1550 nm, 20–30°C); ±0.2 dB across 1290–1330 nm, 1525–1610 nm ranges
• Stability: ±0.01 dB over 1 minute; ±0.02 dB over 15 minutes (characteristic)
• Polarization dependency: ±0.25 dB (1250–1650 nm)
• Insertion loss: <10 dB
Resolution & Dynamic Range
• Resolution bandwidth: 0.04 nm to 100 GHz nominal; as low as 0.016 nm actual
• Dynamic range: –70 dB at 0.5 nm (1250–1610 nm with chop mode); –60 dB at ±0.8 nm grating response
• Sweep time: <650 ms (500 nm span)
Electrical
• Power input: 90–260 Vac, 44–444 Hz
– Key Features
• High wavelength accuracy with internal gas cell calibrator for C/L-band precision
• Multiple calibration methods support field flexibility
• Built-in automated test sequences reduce measurement time
• Low insertion loss and polarization-insensitive operation
• Fast sweep capability for high-volume testing
– Typical Applications
• WDM system validation and troubleshooting
• Laser and EDFA spectral characterization
• Optical component transmission analysis
• Network maintenance and field service
– Connectivity
• Monochromator input/output connectors on front panel
• Preselector and stimulus response modes supported








