The Keysight N7747A is a high-sensitivity optical power meter designed for demanding optical testing applications. This two-channel instrument offers exceptional performance in terms of sensitivity, noise, and relative accuracy, making it suitable for measuring weak optical signals and small signal changes with high precision. The N7747A integrates the proven optical performance of the 81634B sensor modules into the compact N77 series platform, providing enhanced memory capacity, faster data transfer rates, and continuous logging capabilities. This combination allows for efficient, long-term monitoring of optical signals, even in complex multichannel test setups. Its design facilitates integration into automated test systems and is compatible with existing setups utilizing Keysight’s modular power meters and tunable laser sources.
### Technical Specifications
* **Channels:** 2-port optical power meter
* **Wavelength Range:** 800 nm to 1700 nm
* **Power Range:** -110 dBm to +10 dBm
* **Sensitivity:** As low as -110 dBm
* **Noise:** < 0.1 pW peak-peak
* **Relative Power Accuracy:** High, with low polarization dependence
* **Polarization Dependence:** < ±0.005 dB
* **Linearity:** < ±0.015 dB; < ±0.005 dB over a 10 dB span
* **Spectral Ripple:** Low
* **Logging Memory:** 2 buffers per channel, each with 1 million sample capacity
* **Sampling Rate:** Up to 1 MHz (for time-dependent measurements)
* **Data Logging Interval:** As low as 25 µs
* **Data Transfer Rate:** Fast
* **Continuous Logging:** Supported
* **Simultaneous Measurement and Data Transfer:** Supported due to large data buffer
* **Power Ranges:** 9 power ranges at 10 dB spacing
* **Averaging Time:** 25 µs to 10 s (typ.), with setting resolution down to 2 µs
* **Analog Output:** 0 to 2 V signal proportional to optical power per channel (scaled by power range); up to 5 kHz bandwidth or 5.0 kHz to 300 Hz bandwidth
* **Connector Interface System:** Compatible with interchangeable 81000xI connector interface system
* **Rack Unit:** 1 RU height, half-rack width### Electrical Specifications* **Maximum Power Consumption:** 60 VA (with all options installed)
* **Input/Output Signals:**
* Trigger In: BNC connector, TTL input, max 5 V external voltage
* Trigger Out: BNC connector, TTL output
* Analog Output: BNC connector per optical port, 0 to 2 V### Interfaces* **Control Interfaces:** USB, LAN, GPIB
* **Command Set:** SCPI (Standard Commands for Programmable Instruments)
* **Software Compatibility:** Compatible with N77xx Viewer user interface program, and 816x VXI Plug&Play drivers### Physical Specifications* **Dimensions:** 460 mm (D) x 212 mm (W) x 43 mm (H) (1 RU height, half-rack width)
* **Weight:** 3.5 kg
* **Operating Environment:**
* Temperature: Specified range (refer to manual for exact details)
* Humidity: 15% to 95% non-condensing
* Maximum Operating Altitude: 2000 m
* Pollution Protection: Designed for pollution degree 2
* **Storage Temperature:** -40°C to +70°C### Compatibility* **Laser Sources:** Easily synchronizable with Keysight tunable laser sources for spectral measurements
* **Test Setups:** Highly compatible with existing test setups based on Keysight's range of modular power meters
* **Connector Interface System:** Utilizes the interchangeable 81000xI connector interface system for adaptability to different fiber connector typesWhy Choose Aumictech for Keysight N7747A?
At Aumictech, we specialize in supplying high-end optical test and measurement equipment. Whether you need precise optical power measurements, long-term signal monitoring, or integration into automated test systems, our team ensures the Keysight N7747A delivers maximum performance for your application.
