Keysight 81623C Optical Power Sensor - Product Overview
The Keysight 81623C is a high-precision optical power sensor specifically designed for optical communication system testing, optical device verification, and production environments. With its exceptional sensitivity and stability, it serves as a core measurement tool for 100G/400G optical module testing and fiber network maintenance. 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 | 1250-1650 nm | Covers O/E/S/C/L bands |
| Power Measurement Range | -70 dBm to +20 dBm | Auto-range switching |
| Measurement Accuracy | ±0.03 dB (typical) | Calibrated (at 23°C±5°C) |
| Resolution | 0.01 dB | High-precision mode |
| Detector Type | InGaAs | Low-noise design |
| Connector Interface | FC/APC (standard) | Optional FC/PC or SC/APC |
| Calibration Wavelengths | 1310/1490/1550 nm | NIST-traceable |
| Maximum Input Power | 300 mW | Supports high-power testing |
| Response Time | <15 ms | Fast measurement mode |
| Communication Interface | USB/RS-232 | SCPI remote control support |
2. Key Features
Ultra-High Sensitivity
Capable of detecting weak signals down to -70 dBm, ideal for fiber sensing and long-distance communication system testing.
Temperature-Stabilized Design
Built-in temperature compensation circuitry maintains ±0.03 dB accuracy even with ±5°C environmental fluctuations.
Fast Response
<15 ms fast measurement mode meets dynamic optical power monitoring requirements.
Automation Integration
Supports remote control via SCPI commands and integrates with Keysight 816xx series test systems.
Data Logging
Stores up to 100 measurement data sets with USB export capability to PC.
3. Application Scenarios & Recommended Configurations
| Application Field | Testing Requirements | Recommended Equipment |
|---|
| Optical Module Production | Tx power calibration, Rx sensitivity testing | Keysight 81606B Tunable Laser |
| Fiber Network Maintenance | Link loss measurement, fault location | Keysight 81635A Polarization Controller |
| Passive Device Verification | Insertion loss, return loss testing | Keysight 81600B Optical Spectrum Analyzer |
| Data Centers | Multimode fiber power monitoring | Keysight 81599A Optical Attenuator |
4. Compatibility Statement
Hardware Compatibility: Compatible with Keysight 8164B/8166B mainframe 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: Fast response and automation features enhance testing efficiency
Broad Applicability: Full-scenario coverage from R&D labs to production line testing
