The Photonetics 3648 HE 1540 is a tunable laser source engineered for precise wavelength control in the 1500–1580 nm band. Designed for optical research, telecommunications, and optical testing applications, it delivers mode hop-free operation through proprietary active control and enables accurate wavelength sweeps with exceptional repeatability.
Technical Specifications
Wavelength Performance
• Operating range: 1500 nm to 1580 nm
• Accuracy: ±0.2 nm
• Setting resolution: 0.001 nm
• Tuning repeatability: ±0.005 nm (typical)
• Stability: ±0.01 dB
• Optical frequency fine tuning: ±2 GHz
Optical Output
• Maximum power: 10 dBm (10 mW with high power option)
• Power stability: ±0.01 dB
• Side mode suppression ratio: >45 dB
• Relative intensity noise: >145 dB/Hz
• Connector: FC/APC
Electrical & Physical
• Power supply: 100–240 V, 50–60 Hz
• Weight: 17 lbs (shipping)
• Warm-up time: 30 minutes (before specifications are valid)
– Key Features
• Mode hop-free wavelength tuning across the 1500–1580 nm band
• Continuous sweep capability for fast, uninterrupted measurements
• Sub-picometer wavelength resolution and repeatability
• Internal wavelength adjustment via RS 232-C connection to compatible wavelength meters
• Exceptional spectral purity and low noise floor
– Typical Applications
• Optical component characterization and testing
• Fiber optic telecommunications R&D
• Wavelength-dependent optical system validation
• Precision spectroscopy and photonics research
– Compatibility & Integration
FC/APC connectors ensure compatibility with standard fiber optic test benches and communications equipment. RS 232-C control interface enables automated wavelength monitoring and adjustment through external wavelength meters, supporting integration into automated test environments.


















