The Keysight N7743C is a high-performance, multi-channel optical power meter designed for accurate and reliable power measurements within optical communication systems and for characterizing optical components and networks. It offers extended functionality for higher power levels compared to other models in the N774-C family, while maintaining speed and logging performance. The instrument features an analog voltage output configurable for linear or logarithmic feedback, which is beneficial for automated alignment applications, particularly for tracking signal levels over wide dynamic ranges.
### Technical Specifications
* **Model:** Keysight N7743C
* **Product Type:** High-Power Optical Multiport Power Meter with Analog Output
* **Channels:** Available with 2 or 4 power sensor channels.
* **Wavelength Range:**
* Standard: 1250 nm to 1650 nm (Options #200, #400)
* Extended: Down to 800 nm (Options #210, #410)
* **Power Range:** -50 dBm to +20 dBm
* **Maximum Input Power:** +20 dBm
* **Dark Noise Level:** Less than 30 pW
* **Dynamic Range:** Over 90 dB
* **Analog Output:**
* Provides analog voltage output for automated alignment feedback.
* Configurable to be linearly or logarithmically proportional to optical power.
* Standard BNC connector with 0 to 2V output.
* Logarithmic mode is useful for tracking signal levels over a wide dynamic range.
* **Measurement Speed:**
* High-speed measurement data acquisition.
* Short minimum averaging time of 1 µs.
* Up to 250 kHz bandwidth.
* Data acquisition up to 1 Million samples per second per port.
* **Memory:**
* Memory for 1 M samples per port plus 1 M per port buffer for continuous logging.
* Dual-ported RAM for uninterrupted simultaneous measurement and readout.
* **Triggering:** Family-wide, common trigger concept.
* **Interface:**
* GUI accessible via LAN or USB; no software installation required.
* Instrument appears as a new drive with a shortcut when connected via USB.
* Controlled via LAN and USB.
* **Connector Interfaces:** User-exchangeable connector receptacles (N7742-I). Adapters support FC, SC, LC, and ST connectors.
* **Operating Environment:**
* Ambient Temperature: (23 ± 5) °C
* Temperature Constant: Within ±1 K after zeroing.
* Relative Humidity: ≤ 60% (non-condensing).
* Altitude: Up to 2000 meters.
* **Line Power Requirements:** Refer to specifications tables for AC mains voltage.
* **Warm-Up Time:** Refer to user manual for specifics.
### Electrical Specifications
* **Linearity:**
* ±0.02 dB for N7742C, ±0.02 dB typical within specification wavelength range for straight connector with ceramic ferrule for N7743C.
* Specifications vary based on connector type and conditions.
* **Uncertainty:**
* Total Uncertainty and Uncertainty at Reference Conditions are detailed in the manual.
* Typically ± 0.01 dB within specification wavelength range for straight connector with ceramic ferrule.
* For input power >10 mW: add typical ± 0.0016 dB/mW.
### Interfaces
* **Analog Output:** Standard BNC connector, 0 to 2V output, configurable linear or logarithmic.
* **Remote Interface:** LAN and USB.
* **Trigger Input/Output:** Rear Panel Trigger BNC Connectors.
### Physical
* **Port Count:** Available in 2 or 4 port configurations.
* **Rack Mountable:** Yes.
* **Dimensions and Weight:** Refer to the user manual for specific dimensions and weight.
### Compatibility
* **Software:** Browser-accessible GUI via LAN or USB, no installation required.
* **Programming:** Instrument programming code is compatible with the Keysight Lightwave solution platform.
* **Accessories:** Compatible with user-exchangeable N7742-I connector interfaces and optical head adapters.
Why Choose Aumictech for the Keysight N7743C?
At Aumictech, we specialize in supplying high-end optical test and measurement equipment. Whether you need precise multi-channel power measurements, reliable analog feedback for automated alignment, or extended wavelength range capabilities, our team ensures the Keysight N7743C delivers maximum performance for your application.
