Keysight N7749C Integrated Optical Power Meter - Product Overview
The Keysight N7749C is a high-end integrated optical power meter specifically designed for optical communication R&D laboratories, production testing, and high-precision measurement scenarios. With its innovative multi-channel architecture and laboratory-grade measurement performance, it serves as an ideal solution for DWDM system validation, high-speed optical module testing, and cutting-edge optical research. Below is a detailed introduction covering four key aspects: core specifications, technological innovations, application scenarios, and system integration capabilities.
1. Key Specifications Table
| Parameter Category | Technical Specifications | Notes |
|---|
| Wavelength Range | 1250-1650 nm | Covers O/E/S/C/L 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 | Ultra-high precision mode |
| Detector Type | InGaAs (Thermoelectric Cooled) | Low-noise design |
| Channel Count | 4 independent measurement channels | Simultaneous sampling |
| Connector Interface | FC/APC (standard) | Optional FC/PC or SC/APC |
| Calibration Wavelengths | 1310/1490/1550 nm | NIST-traceable |
| Maximum Input Power | 500 mW | Supports high-power applications |
| Response Time | <10 ms | Fast measurement mode |
| Communication Interface | USB/RS-232/GPIB | Supports SCPI/Python control |
2. Technological Innovations
Multi-channel Synchronous Measurement
Integrated 4 independent measurement channels support true synchronous power monitoring with >60 dB channel-to-channel isolation.
Active Temperature Control
Thermoelectric cooling (TEC) stabilizes detector temperature with <±0.1°C fluctuation, ensuring ±0.005 dB/°C long-term stability.
Intelligent Data Processing
Built-in 10,000-point data storage supports real-time FFT analysis and trend graph display, operable directly via touchscreen.
Automated Test Suite
Pre-installed optical device automation software supports advanced measurement modes like TDLAS and OFDR.
3. Application Scenarios & Testing Solutions
| Application Field | Testing Requirements | Recommended Equipment |
|---|
| DWDM System Validation | Multi-wavelength power equalization & monitoring | Keysight N7711A Tunable Laser |
| 400G Optical Modules | Coherent receiver sensitivity testing | Keysight N1092D BER Analyzer |
| Quantum Communication | Single-photon detector calibration | Keysight 81599A Ultra-low Noise Attenuator |
| Photonic Chip R&D | Silicon photonic device IL distribution measurement | Keysight N4952A BERT |
4. System Integration Capabilities
Hardware Expansion: Supports daisy-chaining multiple units via GPIB for large-scale test systems
Software Compatibility: Native support for Keysight PathWave and BenchVue control software
Cloud Platform Integration: Enables real-time test data upload to Keysight Cloud for big data analysis
5. Product Advantages Summary
Research-grade Precision: 0.001 dB resolution with ±0.02 dB accuracy meets stringent R&D requirements
High-efficiency Multitasking: 4-channel design improves testing efficiency by 300%
Smart Interaction: Dual operation modes with 7-inch touchscreen and remote control
Future-ready: Supports Python customization for emerging technology research
Package includes:
NIST-traceable calibration certificate (with uncertainty analysis report)
Complete set of calibration fiber jumpers (3 pieces, corresponding to calibration wavelengths)
Professional-grade transport case
