Agilent N7784B Polarization Controller

The Keysight N7784B High-Speed Polarization Controller is a versatile solution for managing the state of polarization (SOP) in optical systems. Whether you’re working with fiber optic interferometers, coherent receiver schemes, or other applications, this high-speed controller provides precise control and stability.

Key Specifications and Highlights:

• Comprehensive Polarization Control: The N7784B covers S-, C-, and L-Bands, along with the 1.3µm window (O-Band), ensuring compatibility with a wide range of optical components.
• High-Speed Operation: With a switching time of less than 10 microseconds, it can handle rapid SOP changes, making it suitable for dynamic applications.
• Multiple Operating Modes:
  • Polarization Stabilizer: Provides a stable output SOP even in the presence of fluctuations and drifts in the input SOP due to temperature changes or mechanical settling processes. The stabilized output signal is guided into a Polarization Maintaining Fiber (PMF).
  • Synchronous Scrambler: Switches the SOP of the output signal in a (pseudo) random manner within microseconds. The SOP remains stable for a predefined time before switching to a new SOP. An external trigger input synchronizes the scrambler with external events.
  • SOP Switch: Allows switching between predefined SOPs with high repeatability, enabling customized implementations of the Mueller Matrix method for polarization-dependent loss (PDL) characterization of components.
  • Traditional Scrambler: Varies the output SOP smoothly in a random/pseudo-random manner.
• Robust Design: The N7784B has no moving parts, making it durable and capable of withstanding rough environmental conditions.
• Software Support: All applications are supported by PC software, ensuring ease of use and flexibility.