Fiber Array with Coreless End Cap

This high-precision fiber array features a coreless fiber section at each channel, serving as an integrated beam expander. It improves coupling efficiency into microlenses, optical modules, waveguides, and free-space optics.

Customer-specific configurations are available, including the number of channels, fiber type, pitch, and dimensions. The length of the coreless fiber and the resulting beam diameter at a specified distance can be defined by the customer. Optional antireflection (AR) coatings can be applied to the coreless fiber end face for reduced back reflections.

Advantages

• High coupling efficiency – precise light transmission into microlenses.
• Accurate beam shaping – control over beam diameter and divergence.
• Flexible customization – end cap length, pitch, and dimensions.
• Low reflection losses – optional AR coatings on the coreless end face.

Applications

• Coupling light into microlenses and optical modules.
• Free-space optics and precise optical beam alignment.
• Light transmission into waveguides or other optical devices requiring expanded beams.