Agilent/Keysight 70950B – Optical Spectrum Analyzer Module

The Agilent/Keysight 70950B is a diffraction-grating-based optical spectrum analyzer module that measures spectral optical power versus wavelength across the 600 nm to 1700 nm range. Designed as a 4/8-width plug-in for the HP 70000 modular measurement system, it integrates with HP 70004A or HP 70001A mainframes to deliver precision characterization of optical components, amplifiers, LEDs, DFB lasers, and Fabry-Perot lasers.

– Technical Specifications

• Wavelength Range: 600 nm to 1700 nm
• Span Range: Continuously variable from 0.2 nm to full range; zero span capable
• Absolute Wavelength Accuracy: ±1 nm (standard); ±0.3 nm (user-calibrated); ±0.05 nm (user-calibrated within 40 nm of calibration signal)
• Span Linearity: ±0.05 nm (spans <40 nm); ±0.02 nm (1530–1570 nm band)
• Reproducibility (1 min): ±0.005 nm (standard); ±0.001 nm (user-calibrated)
• Tuning Repeatability: ±0.005 nm
• Settability: ±0.005 nm
• Resolution Bandwidth (FWHM): <0.08 nm (0.065 nm ±15%); 0.1 to 10 nm in 1, 2, 5 sequence
• Resolution Accuracy: ±20% (≥0.5 nm, 1250–1600 nm); ±30% (0.1–10 nm, 600–1700 nm)
• Corrected Bandwidth Accuracy (Noise Markers): ±3% (≥0.5 nm, 1250–1600 nm); ±5% characteristic (0.2 nm, 1250–1600 nm)
• Sweep Performance: 40 nm in 50 ms; full range in 500 ms
• Operating Temperature: 0°C to 55°C
• Storage Temperature: −40°C to +71°C
• Humidity: <95% RH, non-condensing

– Key Features

• Zero-span and continuous-span capability for flexible measurement modes
• Reduced dead-time sweeping preserves instrument longevity
• High-resolution bandwidth options from 0.065 nm to 10 nm
• Calibration-enhanced accuracy down to ±0.001 nm reproducibility

– Typical Applications

• Optical component characterization and spectral analysis
• Amplifier and laser device measurement
• LED and DFB laser characterization
• Fabry-Perot laser analysis

– Compatibility & Integration

Requires HP 70004A or HP 70001A mainframe within the HP 70000 modular measurement system. Connection via MSIB cable. Product status is obsolete; Keysight Service Centers may provide repair and calibration support.