The Agilent 86142A Optical Spectrum Analyzer (OSA) is a precision measurement instrument for characterizing optical signals across the C- and L-bands. This service and repair offering restores units to original factory specifications through component-level diagnostics, calibration, and repair. Technicians address measurement drift, connector degradation, optical path contamination, and firmware issues to restore wavelength accuracy and dynamic range performance. The 86142A serves critical roles in telecom network commissioning, component validation, and signal quality assessment where measurement confidence is essential.
Technical Specifications
Optical Measurement Range
• Wavelength: 1200 nm to 1650 nm
• Input Power: -60 dBm to +20 dBm (optical input); -30 dBm to +20 dBm (direct input)
• Wavelength Accuracy: ±0.1 nm (typ.)
• Level Accuracy: ±0.5 dB (typ.)
Resolution & Sweep
• Resolution Bandwidth: 0.02 nm to 10 nm (selectable in 1, 2, 3, 5 sequence, auto-coupled)
• Sweep Time: 10 ms to 5 s (selectable in 1, 2, 3, 5 sequence, auto-coupled)
• Noise Floor: <-75 dBm at 1550 nm; 55 dB (typ., 0.1 nm RBW)
Physical & Electrical
• Dimensions: 177 mm H × 426 mm W × 483 mm D
• Weight: 18 kg
• Power: 100–240 VAC, 50/60 Hz; 55 dB dynamic range enables weak sideband and ASE detection
– Typical Applications
• DWDM channel validation and power monitoring
• Laser linewidth and spectral purity measurement
• Optical filter and component characterization
• Amplifier gain and noise figure assessment
• Telecom network signal quality verification
– Compatibility & Integration
GPIB interface enables integration into automated test racks and data acquisition systems. SCPI command support allows cross-platform control and scripting.








