The Agilent/Keysight 71451A is a high-performance optical spectrum analyzer for detailed spectral characterization across the 600 nm to 1700 nm wavelength range. Its unique double-pass monochromator design delivers the high dynamic range of double-monochromator systems combined with single-monochromator sensitivity, achieving better than -85 dBm sensitivity and 60 dB dynamic range. The instrument excels at LED, Fabry-Perot laser, DFB laser, and EDFA characterization with polarization-insensitive measurements and excellent amplitude accuracy.
Technical Specifications
• Wavelength Range: 600 nm to 1700 nm
• Monochromator: Double-pass design
• Sensitivity: Better than -85 dBm; -90 dBm
• Dynamic Range: 60 dB (-55 dBm at 0.5 nm offset)
• Resolution (FWHM): 0.08 nm, 0.1 nm to 10 nm (1, 2, 5 sequence)
• Resolution Accuracy: ±20% at approximately 0.5 nm (1250–1600 nm)
• Sweep Rate: 40 nm in 50 ms; full range in 500 ms
• Maximum Input Power: +20 dBm per 5 nm; +30 dBm total
• Wavelength/Amplitude Calibration: Full range; 2-year calibration retention
• Display Resolution: 0.01 dB
• Monochromator Insertion Loss: 850 nm <17 dB (1st order); 1300 nm <7 dB; 1550 nm <10 dB
• Photodetector Accuracy: 0.25 dB at -30 dBm (1300 nm reference); 1 dB compression at 27 dBm; maximum +20 dBm
– Key Features
• Five operational modes
• Low polarization dependency
• Real-time sweep capability
• Optional programmable current source and white light source
• SMB electrical connectors; optional FC/PC connector interface
– Physical & Environmental
• Single 9-inch mainframe: 222 mm H × 425.4 mm W × 526 mm D; 28 kg
• Power: 100/120/220/240 VAC (+5%, -10%); 260 W max (350 VA max); 47–66 Hz and 356–444 Hz
• Operating Temperature: 0° to 55° C
• Storage Temperature: -30° to +71° C
• Shock/Vibration: MIL-T-28800D Class 5 (paragraphs 3.7.4, 3.7.5.2)
– Compatibility & Integration
VXI bus compatible; integrates into modular test systems with single-slot VXI architecture.
