81628C Keysight optical power probe

Main features：

• Wavelength range: 800–1700 nm, covering single-mode and multimode fiber communication bands
• Power measurement range: -80 dBm to +23 dBm with auto-ranging capability
• Measurement accuracy: ±0.02 dB (typical) when calibrated (at 23°C±5°C)
• Resolution: 0.001 dB in high-precision measurement mode
• Detector type: InGaAs (low-noise design)
• Connector interface: FC/PC (standard), optional FC/APC or SC connectors
• Calibration wavelengths: 850/980/1310/1490/1550/1625 nm (NIST-traceable)
• Communication interface: GPIB/USB/LAN with SCPI remote control support
• Typical applications: Optical module production testing, fiber link loss measurement, passive device insertion loss analysis

Consultation

Position: Home

Products

81628C Keysight optical power probe

Overview

Keysight 81628C Optical Power Sensor - Product Overview

The Keysight 81628C is a high-precision optical power sensor designed for optical communication R&D, production testing, and device validation. With its broad wavelength range, high sensitivity, and exceptional stability, it serves as an ideal tool for testing optical modules, fiber links, and passive components. Below is a detailed introduction covering four key aspects: core specifications, features, application scenarios, and compatibility.

1. Key Specifications Table

Parameter Category	Technical Specifications	Notes
Wavelength Range	800–1700 nm	Covers single-mode/multimode fiber bands
Power Measurement Range	-80 dBm to +23 dBm	Auto-range switching
Measurement Accuracy	±0.02 dB (typical)	Calibrated (at 23°C±5°C)
Resolution	0.001 dB	High-precision mode
Detector Type	InGaAs	Low-noise design
Connector Interface	FC/PC (standard)	Optional FC/APC or SC
Calibration Wavelengths	850/980/1310/1490/1550/1625 nm	NIST-traceable
Communication Interface	GPIB/USB/LAN	SCPI remote control support
Response Time	10 ms (fast mode)	Adjustable

2. Key Features

Wide Dynamic Range
Supports power measurements from -80 dBm to +23 dBm, suitable for both weak signals (e.g., fiber sensing) and high-power laser testing.
High Accuracy & Stability
Temperature-compensated design maintains ±0.02 dB accuracy even with ±5°C environmental fluctuations.
Multi-Interface Compatibility
Standard FC/PC connector with optional FC/APC or SC interfaces for diverse testing scenarios.
Automation Integration
Supports SCPI commands via GPIB/USB/LAN, enabling seamless integration with Keysight N77xx/96xx series hosts or third-party test systems.
Data Logging
Built-in memory stores 1,000 data points, with export to Excel or CSV formats.

3. Application Scenarios & Recommended Configurations

Application Field	Testing Requirements	Recommended Accessories
Optical Module Testing	Tx power, Rx sensitivity	81606B Tunable Laser + N1092D BER Tester
Fiber Link Diagnostics	Insertion loss (IL), return loss (RL)	81635A Polarization Controller + 81634B Detector
Passive Device Validation	Splitting ratio, isolation	81600B Optical Spectrum Analyzer
Data Center Cabling	Multimode fiber power calibration	81599A Optical Attenuator (-70 dB range)

4. Compatibility Statement

Hardware Compatibility: Compatible with Keysight N77xx/96xx optical test platforms
Software Compatibility: Supports Keysight PathWave test automation software
Protocol Compatibility: Compatible with third-party platforms like LabVIEW and Python

5. Product Advantages Summary

Precision & Reliability: NIST-traceable calibration ensures internationally recognized measurements
Efficiency & Flexibility: Supports automated testing to enhance production line throughput
Broad Compatibility: Adapts to multi-wavelength, multi-interface needs