Keysight N7748C High Sensitivity Optical Power Meter (4 Channel)
Key Features and Specifications
- -110 to +10 dBm power range with very low noise and drift
- 2.5% uncertainty at reference conditions
- In-range linearity below ± 0.005 dB for highest IL measurement accuracy
- GUI available via LAN or USB, no software installation required
- Data acquisition with up to 1 million samples per second and per port
- Memory for 1 M samples/port plus 1 M/port buffer for continuous logging
- Averaging times from 25 µs to 10 s per sample
- Comprehensive hardware and trigger concept along with its large memory storage gives the flexibility to adapt the power meter to many test needs
Highlights
The 4-port N7748C and 2-port N7747C optical power meters provide the highest accuracy and sensitivity performance in compact front-panel sensor instruments. These are successors and direct replacements for the N7748A and N7747A and continue the optical performance level of the 81634B modules. The instrument programming code is compatible to the Lightwave solution.
With actively cooled InGaAs detectors and optimized high-performance analog electronics, these instruments provide the lowest level of noise and drift to provide a very low and stable zero-signal level. The very high linearity and low polarization dependence give peak accuracy over the full power range.
The highest sensitivity and the new logarithmic analog voltage output make a powerful combination for use in operations for probe and fiber alignment and other optimization routines, where a very weak initial signal level must be detected and then tracked in real-time to increase the signal level over orders of magnitude. The voltage on each channel’s analog output port can be configured to either a linear or logarithmic representation of the optical power level.
Analog output with linear or logarithmic feedback for alignment from lowest first-light detection
N7748C is equipped with four power sensor channels, N7747C provides two power sensor channels. Each port accepts one of the proven 81000xI connector interfaces to adapt to common fiber-optic connector standards.
Highlights
The 4-port N7748C and 2-port N7747C optical power meters provide the highest accuracy and sensitivity performance in compact front-panel sensor instruments. These are successors and direct replacements for the N7748A and N7747A and continue the optical performance level of the 81634B modules. The instrument programming code is compatible to the Lightwave solution.
With actively cooled InGaAs detectors and optimized high-performance analog electronics, these instruments provide the lowest level of noise and drift to provide a very low and stable zero-signal level. The very high linearity and low polarization dependence give peak accuracy over the full power range.
The highest sensitivity and the new logarithmic analog voltage output make a powerful combination for use in operations for probe and fiber alignment and other optimization routines, where a very weak initial signal level must be detected and then tracked in real-time to increase the signal level over orders of magnitude. The voltage on each channel’s analog output port can be configured to either a linear or logarithmic representation of the optical power level.
Analog output with linear or logarithmic feedback for alignment from lowest first-light detection
N7748C is equipped with four power sensor channels, N7747C provides two power sensor channels. Each port accepts one of the proven 81000xI connector interfaces to adapt to common fiber-optic connector standards.