Agilent/Keysight 81656A,Tunable Laser Source
The Agilent/Keysight 81656A is a plug-in module designed for the 8164B lightwave measurement system. This module is a compact laser diode controller, ideal for controlling and stabilizing the output of laser diodes in various optical test and measurement applications. It provides precise current and temperature control, ensuring stable and reliable laser operation.
- Model
- Agilent / Keysight 81656A
- Calibration
- Available on request
- Price
- $2,899
- Status
- In stock
- RFQ ref
- 81656A
This unit
The Keysight 81656A is a 1550 nm Fabry-Perot laser source module engineered for optical component characterization within the 8164B lightwave measurement system. This single-wavelength source delivers stabilized output with exceptional insensitivity to back reflections, making it ideal for precision measurements of insertion loss, optical return loss, and PDL across broadband components and fiber-optic assemblies.
Technical Specifications
- Wavelength: 1550 nm ±15 nm
- Laser Type: Fabry-Perot Laser Diode
- Output Power: >+13 dBm (20 mW)
- Spectral Bandwidth: <7.5 nm
- Fiber Output: Standard Single-Mode 9/125 µm
- CW Power Stability (15 min): <±0.005 dB
- Back Reflection Sensitivity: Insensitive
- Output Attenuation Range: 0 dB to 6 dB in 0.1 dB steps
- Operating Temperature: 0°C to +45°C
- Humidity: Non-condensing
Key Features
- Internal digital modulation modes selectable from 270 Hz, 330 Hz, 1 kHz, 2 kHz, or user-defined 200 Hz to 10 kHz
- All outputs pulse-shaped with 50% duty cycle
- Internal coherence control for linewidth broadening
- Short-term and long-term output stabilization
- Compact plug-in module format: 75 mm × 32 mm × 335 mm; 0.5 kg
Typical Applications
- Insertion loss measurements of broadband optical components
- Optical return loss characterization
- Polarization-dependent loss (PDL) testing
- Single-mode fiber-optic system verification
Compatibility & Integration Designed as a plug-in module for the Keysight 8164B Lightwave Measurement System. Compatible with Keysight 8163A/B, 8164A/B, and 8166A/B mainframes. Laser safety classification: Class IIIb (USA, 21 CFR 1040.10) and Class 3A (International, IEC 60825-1).
