The Photonetics BT 3648HE1600 is a tunable laser source (TLS) engineered for precise wavelength control across the C- and L-band regions of the optical spectrum. It delivers accurate, stable output for optical component characterization, system testing, and research applications requiring deterministic wavelength selection and power control.
Technical Specifications
• Wavelength Range: 1520 nm to 1600 nm (standard configuration for model variant)
• Output Power: 0 dBm standard; optional +6 dBm or +10 dBm configurations
• Wavelength Accuracy: ±0.2 nm
• Wavelength Resolution: 10 pm standard; 1 pm optional
• Power Stability: ±0.01 dB
• Optical Frequency Fine Tuning: ±2 GHz
• Side Mode Suppression Ratio (SMSR): >45 dB
• Relative Intensity Noise (RIN): >145 dB/Hz
• Warm-up Time: 2 hours to specification
• Power Supply: 100–240 V, 50–60 Hz
• Optical Interface: FC/APC connector
• Control Interfaces: IEEE-488 and RS-232
• Dimensions: 24 × 24 × 16 in
• Weight: 25 lbs
• Laser Classification: Class IIIb per 21 CFR Subchapter J and IEC 60825-1
– Key Features
• Mode hop-free tuning for continuous wavelength sweep
• Fine tuning capability with ±2 GHz optical frequency adjustment
• Exceptional spectral purity exceeding 45 dB SMSR
• Low relative intensity noise rated >145 dB/Hz
• Dual-interface control via IEEE-488 (GPIB) and RS-232 serial
• Remote interlock connector for external ON/OFF switching
• Stability maintained over one-hour periods at constant temperature
– Typical Applications
• Optical filter and component characterization
• Wavelength-dependent system testing
• Spectroscopic measurement and analysis
• Optical network device validation
– Compatibility & Integration
The instrument requires 100–240 V AC mains supply at 50–60 Hz with a T4Amp L 250V line fuse. Output connects via standard FC/APC fiber optic interface. Remote control is available through IEEE-488 or RS-232 protocols. Adequate ventilation space must be maintained beneath and behind the unit during operation.


















