Optics for Research LLF-102-1M Large Mounted Fiber Coupling Lens

Genuine precision large-aperture plano-convex Best Form fiber coupling lens in a professional mount from OFR and ready to use. OFR’s large LLF lenses are rare surplus gems – professional heritage at outstanding value.

Key Specifications:

• Clear Aperture: 95 mm (~3.74 inches – wide beam capable)

• Estimated Focal Length: ~1000 mm (1 meter – ideal for low-aberration long-distance collimation)

• Center Thickness: ~9 mm

• Lens Type: Plano-convex singlet (BestForm low-aberration design)

• Material: UV-grade fused silica ( (excellent for broadband UV-VIS-NIR transmission, low absorption, high damage threshold)

• Coatings: AR optimized for visible/NIR laser/fiber wavelengths

• Mount: Sturdy black anodized threaded cell

• Condition: Excellent surplus – clean pristine surfaces, no damage

Perfect for gentle beam handling with diffraction-limited performance over large apertures.

Applications:

• Fiber-optic collimation/focuser (coupling light into/from large-core fibers or multimode beams) or laser beam expander input/output.

• Long-focus laser beam collimation or expansion in visible/NIR laser systems (HeNe, diode, argon-ion).

• Optical bench experiments, beam shaping, or alignment in research setups.

• Telecom/laser R&D test benches, high-power delivery