The Keysight 70951A Optical Spectrum Analyzer is a diffraction-grating based module for precise spectral measurements of optical power versus wavelength. Designed for integration into the HP 70000 series modular measurement system, it delivers advanced characterization of optical components, amplifiers, LEDs, and laser sources including DBF and Fabry-Perot types.
Technical Specifications
• Wavelength range: 600 nm to 1700 nm
• Resolution accuracy: >0.5 nm (1250 nm to 1600 nm band), ±20% accuracy
• Absolute wavelength accuracy: ±0.3 nm
• Dynamic range: 60 dB
• Sensitivity: -90 dBm
• Measurement functions: spectral width, peak wavelength, optical power, and full spectral power distribution
– Key Features
• Double-pass monochromator design combining single-pass sensitivity with double-pass dynamic range performance
• Diffraction-grating wavelength tuning with real-time sweep capability
• Low polarization dependency
• Optional ADC sync and pulsed current control (Option 001)
• Optional built-in white light source for alignment and calibration (Option 002)
– Typical Applications
• Telecommunications component and system testing
• Fiber optic component characterization
• Laser source spectral purity and power distribution analysis
• LED spectral measurements
• Optical device transmission characteristics assessment
• Spectral width determination for chromatic dispersion analysis
– Compatibility & Integration
The 70951A integrates into Keysight/HP 70000 Modular Measurement System mainframes such as the HP 70004A, forming the HP 71451A system configuration. Communication is enabled through the Modular System Interface Bus (MSIB) for inter-module data exchange and Agilent Interface Bus (GPIB) for external computer control and instrument networking.
