Agilent/Keysight 71451B – Optical Spectrum Analyzer
Agilent / Keysight Optical Spectrum Analyzers. Accuracy: ±0.3 nm, Sensitivity: -90 dBm, Dynamic Range: 60 dB.
- Model
- Agilent / Keysight 71451B
- Calibration
- Available on request
- Price
- $16,890
- Status
- In stock
- RFQ ref
- 71451B
This unit
The Agilent/Keysight 71451B is a diffraction-grating-based optical spectrum analyzer engineered for precise spectral measurements of optical power versus wavelength across the visible and near-infrared spectrum. Built around a unique double-pass monochromator architecture, it delivers real-time sweep capability with -90 dBm sensitivity and 60 dB dynamic range, making it ideal for characterizing optical components, amplifiers, LEDs, and lasers in network testing and R&D environments.
Technical Specifications
- Wavelength Range: 600 nm to 1700 nm
- Wavelength Accuracy: ±0.3 nm
- Sensitivity: -90 dBm
- Dynamic Range: 60 dB
- Maximum Measurable Power Level: +10 dBm (before compression)
- Maximum Safe Photodetector Input: +20 dBm
- Maximum Input Power (MONOCHROMATOR INPUT): +30 dBm
- Amplitude Flatness (≥2 dBm input): ±0.4 dB
- Amplitude Accuracy: Excellent
- Polarization Dependence: Low
- Span Range: 0.2 nm to full range, zero span supported
- Operating Temperature: 0°C to 55°C
- Relative Humidity: <95%
- Dimensions: 24 × 20 × 16 in
- Weight: 50 lbs
Key Features
- Double-pass monochromator design for enhanced spectral purity
- Real-time sweep rates for dynamic signal observation
- Low polarization dependence minimizes measurement artifacts
- External trigger capability via rear-panel EXT TRIG IN connector for gated sweep operation
- Monochromator output connector enables external signal routing
- Includes HP 70951B module
Optical Interfaces
- Front-panel MONOCHROMATOR INPUT connector (primary signal input)
- Front-panel MONOCHROMATOR OUTPUT connector (external monochromator output)
- Rear-panel EXT TRIG IN for external triggering
Operating Requirements Specifications apply after 1 hour thermal stabilization and completion of auto-align routine. Avoid thermal shock to prevent condensation. Proper earth grounding and ESD precautions required at rear-panel connectors.
Frequently Asked Questions
- What does the Agilent/Keysight 71451B measure, and what are its key specifications?
- The 71451B is an optical spectrum analyzer designed to measure optical power, wavelength, and signal characteristics across fiber optic networks and optical components. This model delivers ±0.3 nm wavelength accuracy, a sensitivity floor of −90 dBm, and a 60 dB dynamic range, making it suitable for telecommunications, DWDM system validation, and component characterization in research and manufacturing environments.
- What condition is this 71451B in, and what was verified before listing?
- We've listed this unit as used equipment that has been functionally tested to confirm core measurement capabilities and display operation. Our standard pre-sale verification includes power-up testing and optical port integrity assessment; we do not guarantee original calibration status without a separate calibration service.
- Is the 71451B calibrated, and what are my calibration options?
- Calibration for the 71451B is available separately through Aumictech starting at $450, and covers wavelength accuracy and optical power reference standards. We recommend calibration if your application requires traceable measurements to NIST standards or if the unit has not been factory-calibrated within your required interval. Turnaround and specific service scope details are available upon request.
- What interfaces and connectivity does the 71451B support?
- The 71451B features GPIB (IEEE-488) and RS-232 remote control interfaces, enabling integration into automated test systems and lab benches with legacy instrument control architectures. Keysight provides standard command libraries and driver support for common software environments; compatibility with your specific control platform should be confirmed before purchase.
Agilent / Keysight 71451B — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 71451B. 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 71451B 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 71451B price
This Agilent / Keysight 71451B is listed at $16,890. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 71451B calibration cost
NIST-traceable calibration for the Agilent / Keysight 71451B 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 →
