The Keysight N7776C is a standalone tunable external cavity laser (ECL) source engineered for precision optical signal generation in component characterization, telecommunications testing, and wavelength-selective device validation. Operating across multiple wavelength bands from 1240 nm to 1650 nm, it delivers absolute wavelength accuracy of ±1.5 pm with sub-picometer repeatability and sub-10 kHz spectral linewidth. The instrument supports continuous bidirectional sweeps at rates up to 200 nm/s while maintaining power stability throughout its tuning range.
Technical Specifications
• Laser Type: Tunable ECL
• Wavelength Bands: 1240–1380 nm, 1340–1495 nm, 1450–1650 nm, 1490–1640 nm, 1250–1370 nm (Option)
• Absolute Wavelength Accuracy: ±1.5 pm typical
• Relative Wavelength Accuracy: ±1.5 pm
• Spectral Linewidth: <10 kHz
• Output Power: Up to +19.4 dBm with Option 013; ≥+12–13 dBm peak across standard options; ≥+5 dBm full range
• Signal-to-Spontaneous Emission Ratio: ≥80 dB/nm typical; ≥50 dB/nm with Option 013
• Wavelength Repeatability: Sub-picometer
• Sweep Speed: Up to 200 nm/s, bidirectional
– Key Features
• High-resolution wavelength reference unit with real-time tracking and gas-cell stabilization
• Web user interface with optional 5-inch capacitive touchscreen display
• Remote programming support for automated system integration
• Continuous wavelength sweeps maintaining accuracy during operation
– Typical Applications
• Optical component characterization and validation
• Telecommunications system testing
• Wavelength-dependent device measurements
• Swept-wavelength optical measurements
– Compatibility & Integration
Works with N774xC multiport power meters and N7786C polarization synthesizer. Compatible with Photonic Application Suite software for spectral analysis and measurement automation.
