HP / Agilent 81625B High Power InGaAs Optical Head 27dBm
The HP/Agilent 81625B is a high-power InGaAs optical head designed for accurate optical power measurements. It features a wide dynamic range and is capable of measuring optical power up to 27dBm. This optical head is compatible with HP/Agilent optical power meters and is ideal for testing and characterizing optical components and systems.
- Model
- HP / Agilent 81625B
- Calibration
- Available on request
- Price
- $11,563
- Status
- In stock
- RFQ ref
- 81625B
This unit
The HP/Agilent 81625B is a high-power InGaAs optical head for near-infrared power measurement across the 850 nm to 1650 nm spectrum. This detector module delivers dynamic range to +27 dBm, making it suited for characterizing optical components and systems with elevated signal levels. The 5 mm diameter InGaAs sensor provides low polarization-dependent loss, low spectral ripple, and high return loss performance. Operation requires integration with either the Agilent 81618A (single-channel) or 81619A (dual-channel) interface modules within Agilent 8163, 8164, or 8166 series multichannel mainframes. The detector operates from 0 °C to +35 °C at relative humidity less than 80%, with wavelength measurement uncertainty of ±5.0% across the 950 nm to 1630 nm range. No analog output is provided. Connector adapters are sold separately.
Technical Specifications
Sensor Element: InGaAs (Indium Gallium Arsenide)
Wavelength Range: 850 nm to 1650 nm
Detector Diameter: 5 mm
Power Range: +27 dBm to −70 dBm (1250–1650 nm); +23 dBm to −70 dBm (850–1650 nm)
Dynamic Range: Up to +27 dBm
Wavelength Accuracy: ±5.0% (950 nm to 1630 nm)
Polarization Dependent Loss: Low PDL design
Spectral Ripple: Low
Return Loss: High
Operating Temperature: 0 °C to +35 °C
Operating Humidity: <80% RH (10 °C to 35 °C)
Maximum Altitude: 2000 m
Pollution Degree: 2
Power Supply (Mainframe): AC 100–240 V ±10%, 50/60 Hz
Power Consumption (Mainframe): 280 VA maximum
Key Features
InGaAs semiconductor optimized for 900–1700 nm short-wave infrared detection
Extended wavelength cutoff to 1.68 µm captures 1.3 µm and 1.55 µm fiber transmission windows
5 mm active aperture
Magnetic D-shape adapter with safety stand included
Wavelength measurement uncertainty ±5.0% over 950–1630 nm
Typical Applications
Telecommunications wavelength characterization (1310 nm, 1550 nm)
Optical component power verification
Fiber-optic system testing
SWIR optical power analysis
Compatibility & Integration
Requires Agilent 81618A (single) or 81619A (dual) interface module
Compatible with Agilent 8163A/B, 8164A/B, and 8166A/B mainframes
Connector adapter sold separately
Mainframe dimensions: 145 mm (H) × 426 mm (W) × 545 mm (L)
Mainframe weight: 20 kg net
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | '+27 dBm to −70 dBm (1250–1650 nm) |
| +23 dBm to −70 dBm (850–1650 nm) | Voltage / Current Range | 50/60 Hz (mainframe), AC 100 to 240 V ± 10% | Wavelength Range: 850 nm to 1650 nm |
HP / Agilent 81625B — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the HP / Agilent 81625B. Calibration covers detector responsivity across all specified wavelengths (typically 800-1700 nm range), absolute power accuracy, and EEPROM calibration coefficient update. Compatible with Agilent/HP 8163A/B, 8164A/B, and 8166A/B mainframes.. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common HP / Agilent 81625B faults: FC/PC connector damage, EEPROM failure (mainframe shows unrecognized sensor), reduced responsivity. Common faults include FC/PC input connector damage, EEPROM failure causing the module to appear unrecognized by the mainframe, and reduced detector responsivity from contamination.
HP / Agilent 81625B price
This HP / Agilent 81625B is listed at $11,563. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
HP / Agilent 81625B calibration cost
NIST-traceable calibration for the HP / Agilent 81625B 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 detector responsivity across all specified wavelengths (typically 800-1700 nm range), absolute power accuracy, and EEPROM calibration coefficient update. Compatible with Agilent/HP 8163A/B, 8164A/B, and 8166A/B mainframes.. Turnaround is 1 to 3 business days after receipt. See full calibration details →
