CW Laser Fiber Series

Passive Double-Clad Fibers for High-Power Applications

Passive Double-Clad Fibers for High-Power Applications

Lumentum’s Germanium-doped double-clad single-mode passive fibers are specifically engineered for high-power single-mode laser systems and beam-delivery applications. Optimized core geometry ensures low-loss signal transmission at power levels up to 15 kW while maintaining diffraction-limited beam brightness. These fibers can be precisely mode-matched with Yb-doped active fibers to minimize splice losses. Enhanced photosensitivity options are also available for faster fiber Bragg grating (FBG) inscription.

For specialized requirements, Lumentum offers custom fiber designs tailored to specific core numerical apertures (NAs) and geometric properties, making them ideal for defense, industrial laser systems, and advanced research applications.

Key Features

  • Diffraction-Limited Beam Quality: Delivers superior single-mode output for precise and consistent beam delivery
  • High-Power Handling: Specialized coating materials combined with double-clad designs ensure reliable operation at elevated power levels
  • Optimized Coiling Diameter: Minimizes fundamental-mode bending losses while maximizing suppression of unwanted higher-order modes
  • Enhanced Photosensitivity (Optional): Enables rapid fiber grating inscription, reducing overall manufacturing time and cost
  • Stringent Quality Checks: 100% inspection of fibers for glass and coating imperfections ensures consistency and long-term reliability
  • Customization Options: Core NA, geometry, and absorption characteristics can be tailored to specific customer application requirements.

Applications

  • High-power single-mode laser systems for defense, industrial processing, and research.