The Keysight/Agilent N7748A is a high-sensitivity, 4-channel optical power meter designed for demanding optical communication and test applications. It is built on the compact N77 platform, offering enhanced memory and data transfer capabilities for automated test environments. This instrument is engineered to provide precise and dependable power measurements, crucial for characterizing optical components and systems with high accuracy.
### Technical Specifications
* **Channels:** 4-port optical power meter
* **Power Range:** -110 dBm to +10 dBm
* **Wavelength Range:** 800 nm to 1700 nm
* **Sensitivity:** Down to -110 dBm
* **Noise and Drift:** < 0.1 pW peak-peak
* **Polarization Dependence:** < ±0.005 dB
* **Spectral Ripple:** < ±0.005 dB
* **In-Range Linearity:** < ±0.005 dB
* **Linearity (overall):** < ±0.015 dB, with < ±0.005 dB over a 10 dB span
* **Data Logging Memory:** 2 x 1M sample buffers per channel
* **Continuous Logging:** Supported, with the ability to upload one buffer while the other is recording
* **Averaging Time Settings:** 25 µs to 10 s, with setting resolution down to 2 µs
* **Analog Output:**
* 0 to 2 V into open circuit
* 600 Ω typical output impedance
* Max input voltage: ±10 V
* Bandwidth: 5.0 kHz (for +10 dBm to –20 dBm range), 4.0 kHz (for –30 dBm to –40 dBm range), 0.3 kHz (for –40 dBm to –70 dBm range)
* Bandwidth (alternative): 5.0 kHz to 300 Hz### Interfaces* **Optical Connectors:** Utilizes the interchangeable 81000xI connector interface system
* **Analog Voltage Output:** BNC connectors per optical port
* **Trigger Input:** BNC connector, TTL input (max 5 V)
* **Trigger Output:** BNC connector, TTL output### Physical Characteristics* **Dimensions (D x W x H):** 460 mm x 212 mm x 43 mm
* **Rack Unit Height:** 1 RU
* **Rack Width:** Half-rack width (excluding front and back rubber cushions)
* **Weight:** 3.5 kg### Compatibility* **Sensor Modules:** Enhances the optical performance of the 81634B sensor modules
* **Connector Interface System:** Compatible with the 81000xI system for versatile fiber connector adaptability### General Characteristics* **Warm-up Time:** Specified time after power-up for instrument specifications and characteristics to apply
* **Operating Temperature Range:** As specified in the product documentation
* **Humidity:** Non-condensing### Product Status* **Discontinued / Currently Supported:** The N7748A is a discontinued product but remains supported.
* **Replacement Product:** N7748C Optical High-Sensitivity Power Meter (4 Channel)Why Choose Aumictech for Agilent/Keysight N7748A?
At Aumictech, we specialize in supplying high-end optical test and measurement equipment. Whether you need high-sensitivity power measurements for R&D, reliable component characterization for manufacturing, or robust monitoring solutions for optical networks, our team ensures the Agilent/Keysight N7748A delivers maximum performance for your application.
