The HP 70950B Optical Spectrum Analyzer is a diffraction-grating based instrument for spectral measurements of optical power versus wavelength. It characterizes optical components, amplifiers, LEDs, DFB lasers, and Fabry-Perot lasers with high wavelength accuracy and resolution. The module installs in an HP 70004A display or HP 70001A mainframe and operates via optical spectrum analyzer keypad.
– Technical Specifications
Wavelength Range: 600 to 1700 nm
Wavelength Accuracy:
• ±1 nm
• ±0.3 nm after user calibration
• ±0.05 nm after user calibration within 40 nm of calibration signal
Wavelength Linearity:
• ±0.05 nm for spans <40 nm
• ±0.02 nm (1530 nm to 1570 nm)
Wavelength Repeatability:
• ±0.005 nm
• ±0.001 nm (1 minute reproducibility)
Resolution Bandwidth (FWHM):
• <0.08 nm and 0.1 to 10 nm in 1,2,5 sequence
• FWHM of ±1 nm
• 36 dB characteristic (10 nm RBW, 900 to 1600 nm)
• 24 dB characteristic (10 nm RBW, 900 to 1000 nm)
Amplitude:
• Maximum displayed level: 10 dBm
• Flatness ±0.4 dB (≥2 dBm input, 1250 to 1600 nm)
• Flatness ±2 dB (≥2 dBm input, 900 to 1700 nm)
Sensitivity: –95 dBm, –85 dBm
Sweep Time: 40 nm/50 ms
Polarization Dependency: ±2.5 dB (600 to 1700 nm)
Operating Temperature: 0 to 55°C, <95% relative humidity
– Key Features
• Multimode fiber input (standard configuration)
• Wavelength repeatability of ±0.001 nm achievable
• Sub-0.08 nm resolution bandwidth capability
• 4/8-width module form factor
– Compatibility & Integration
Requires installation in HP 70004A display or HP 70001A mainframe. HP-IB communication through mainframe connector; default module address is 23.
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