Agilent/Keysight 70951B – Optical Spectrum Analyzer Module
Agilent / Keysight Optical Spectrum Analyzers. Sensitivity: –90 dBm (1200 to 1600 nm range), Dynamic range: 60 dB.
- Model
- Agilent / Keysight 70951B
- Calibration
- Available on request
- Price
- $7,339
- Status
- In stock
- RFQ ref
- 70951B
This unit
The Keysight 70951B is an optical spectrum analyzer module engineered for precise power-versus-wavelength measurements across the 600 nm to 1700 nm range. This component integrates into the 70000 Modular Measurement System, requiring a compatible mainframe such as the HP 70004A display or HP 70001A. The module occupies a 4/8-width slot and delivers exceptional sensitivity down to –90 dBm with a 60 dB dynamic range, making it ideal for characterizing optical components, amplifiers, lasers, and EDFA systems.
Technical Specifications
Wavelength and Resolution- Wavelength range: 600 nm to 1700 nm
- Span range: 0.2 nm to full range, continuously variable
- Resolution bandwidth (FWHM): <0.08 nm and 0.1 to 10 nm in 1,2,5 sequence
- FWHM setting: <0.065 nm ±15% Performance Metrics
- Sensitivity: –90 dBm (1200 to 1600 nm range)
- Dynamic range: 60 dB
- Wavelength accuracy (absolute): ±0.3 nm
- Span linearity: ±0.05 nm for spans <40 nm
- Reproducibility (1 minute): ±0.005 nm
- Maximum sweep rate: 40 nm/50 ms
- Monochromator: Double-pass design Polarization Performance
- Polarization dependency at ≥0.2 nm resolution (1250–1600 nm): ±0.5 dB
- Polarization dependency at ≥0.2 nm resolution (700–1600 nm): ±1.5 dB
- Polarization dependency at ≥0.2 nm resolution (600–1700 nm): ±2.5 dB
Key Features
- Double-pass monochromator enables superior spectral resolution and dynamic range
- Real-time sweep capability with maximum rate of 40 nm/50 ms
- Low polarization dependency across extended wavelength bands
- Excellent wavelength reproducibility and span linearity
- Optimized sensitivity configuration for EDFA testing applications
Input/Output & Operating Conditions Connectors
- Optical input: FC/PC monochromator and photodetector inputs
- Optical output: 62.5 µm fiber connector (other adapters available) Environmental
- Operating temperature: 0°C to +55°C
- Storage temperature: –40°C to +71°C
- Humidity: <95% R.H. (noncondensing)
- Maximum input power (monochromator): +30 dBm total
- Maximum input power (photodetector): +20 dBm
Compatibility & Integration The 70951B module integrates exclusively within the Keysight 70000 Modular Measurement System. Requires HP 70004A display or HP 70001A mainframe. Status: obsolete; technical support availability may vary.
Frequently Asked Questions
- What does the Agilent/Keysight 70951B measure, and what is its wavelength range?
- The 70951B is an optical spectrum analyzer module designed to measure optical power across wavelengths from 1200 to 1600 nm, covering the C-band and L-band regions critical for telecommunications and fiber-optic testing. It delivers –90 dBm sensitivity and 60 dB dynamic range, making it suitable for characterizing DWDM channels, monitoring signal integrity, and troubleshooting optical networks. This performance level qualifies the 70951B for both lab benchtop analysis and field service applications.
- What condition is this 70951B unit in, and what was verified before listing?
- This is a used 70951B module offered as-is from our inventory of refurbished test equipment. We verify basic operational function and mechanical integrity before listing; however, we recommend confirming specific performance thresholds against your application requirements before deployment. Calibration certification is available separately if you need traceable measurement accuracy for regulated environments or customer documentation.
- Is the 70951B calibration available, and what does it cost?
- Yes, we offer calibration services for the 70951B starting at $450, which provides NIST-traceable certification across the instrument's specified measurement range. Calibration covers optical power measurement accuracy and wavelength accuracy in the 1200–1600 nm band. Turnaround time and detailed scope are available upon request when you contact our service team directly.
- What interfaces and connectivity options does the 70951B support?
- The 70951B integrates into Agilent/Keysight optical test platforms via standard module interfaces (typically GPIB or LAN, depending on the host instrument frame). For remote operation and automated measurement routines, the 70951B supports Keysight's SCPI command set through compatible software drivers. Confirm your host platform architecture with our team to ensure seamless integration into your existing test setup.
Agilent / Keysight 70951B — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 70951B. 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 70951B 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 70951B price
This Agilent / Keysight 70951B is listed at $7,339. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 70951B calibration cost
NIST-traceable calibration for the Agilent / Keysight 70951B 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 →
