HP / Agilent 81606A Tunable Laser Source, High Power and Lowest SSE, Top-Line, > +12 dBm peak

The HP/Agilent 81606A is a tunable laser source module engineered for precision optical testing and component characterization. Operating as a core element within the Keysight 8164B Lightwave Measurement System, it delivers high peak power exceeding +12 dBm with exceptionally low spontaneous emission—achieving ≥80 dB/nm SSE typical. The module provides wavelength selection across four configurable ranges spanning 1240 nm to 1650 nm, with absolute accuracy of ±1.5 pm typical and sub-picometer repeatability. Sweep speeds reach 200 nm/s bidirectionally without sacrificing dynamic accuracy. power repeatability and long-term stability ensure reliable performance across demanding measurement workflows. Output connects via FC/PC Panda fiber with 60 dB return loss.

– Technical Specifications

• Wavelength Range (selectable): 1240–1380 nm | 1340–1495 nm | 1450–1650 nm | 1490–1640 nm
• Peak Output Power: >+12 dBm (Options 114, 116, 216); >+13 dBm (Option 113)
• Signal-to-Spontaneous Emission Ratio: ≥80 dB/nm typical
• Absolute Wavelength Accuracy: ±1.5 pm typical with sub-picometer repeatability
• Spectral Width: 50 dB
• Sweep Speed: Up to 200 nm/s bidirectional
• Dynamic Range: 15 dB improvement over prior generation
• Output Power (pulsed): 0 to 15 mW
• Optical Connector: FC/PC Panda fiber (60 dB return loss)
• Laser Class: 1M
• Warm-up Time: 60 minutes

– Physical & Environmental

• Dimensions: 260 mm × 211 mm × 81 mm
• Weight: 3.35 kg
• Operating Temperature: 10 to 35 °C
• Storage Temperature: −40 to 70 °C
• Relative Humidity: 80% RH

– Compatibility & Integration

Mounts directly into the Keysight 8164B Lightwave Measurement System mainframe. Operates under control of the N7700A photonic application suite software for spectral measurements.