Agilent (Keysight) 5517B Laser Head

Agilent 5517B (also known as HP 5517B, now Keysight 5517B) is a high‑precision helium‑neon (He‑Ne) laser head for dual‑frequency laser interferometer systems.

It provides a highly stable 633 nm wavelength for nanometer‑level precision displacement, position, and velocity measurements. Widely used in machine tools, CMMs,

and VME/PC‑based motion control systems, it serves as a core component for precision metrology and system calibration.

Technical Specifications