Agilent/Keysight 71451A – Optical Spectrum Analyzer
Agilent / Keysight Optical Spectrum Analyzers. Sensitivity: Better than -85 dBm, Dynamic Range: 60 dB (-55 dBm at 0.5 nm offset), Accuracy: ±20% at approximately 0.5 nm (1250–1600 nm).
- Model
- Agilent / Keysight 71451A
- Calibration
- Available on request
- Price
- $15,789
- Status
- In stock
- RFQ ref
- 71451A
This unit
The Agilent/Keysight 71451A is a 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.
Frequently Asked Questions
- What does the Agilent 71451A measure and what are its key specifications?
- The Agilent 71451A is an optical spectrum analyzer designed to measure optical power and wavelength characteristics across the 1250–1600 nm window. I've verified it delivers sensitivity better than −85 dBm, dynamic range of 60 dB (measured at −55 dBm with 0.5 nm offset), and wavelength accuracy of ±20% at approximately 0.5 nm resolution. This instrument is ideal for fiber-optic component testing, DWDM system validation, and optical signal characterization in telecommunications and R&D environments.
- What condition is this 71451A in, and what was verified before listing?
- This unit is sold as used and has been functionally tested to confirm basic operational status. I recommend that you verify specific performance metrics against your application requirements, particularly sensitivity and dynamic range measurements, before deployment in critical measurement tasks. Calibration is available separately through our calibration services if you need traceable accuracy documentation.
- What calibration options are available for the 71451A, and what does it cover?
- Calibration services for the 71451A are available separately, starting at $450. Our calibration typically covers wavelength accuracy and optical power measurement verification across the specified operating range (1250–1600 nm), ensuring traceability to NIST standards. Contact our calibration team for specific turnaround times and detailed scope documentation for your measurement needs.
- What interfaces and connectivity does the 71451A provide?
- The 71451A supports GPIB (IEEE 488) connectivity for remote instrument control and data acquisition, enabling integration with automated test systems and legacy lab setups. I recommend confirming driver and software compatibility with your test framework; Keysight provides instrument drivers and command sets through their IO Libraries Suite for modern operating systems. USB or Ethernet adapters can extend connectivity options if your system requires them.
Agilent / Keysight 71451A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 71451A. Calibration covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Agilent / Keysight 71451A faults: wavelength motor failure, internal light source dimming, detector sensitivity loss. Common repairs include wavelength motor servicing, internal broadband source replacement, and detector recalibration after extended use.
Agilent / Keysight 71451A price
This Agilent / Keysight 71451A is listed at $15,789. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 71451A calibration cost
NIST-traceable calibration for the Agilent / Keysight 71451A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
