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Frequently Asked Questions

A lensed fiber is an optical fiber with the tip shaped like a lens. It is used in integrated optics, optical trapping, and fiber sensors to create a tight focal spot for various applications.

Conventional lensed fibers are made using polishing, laser cutting, or plasma arc techniques. These techniques restrict the shape and material of the lens, limiting the performance and potential applications.

Our lensed fibers are made using fiber nanoimprint technology, which removes the constraints of shape and material. They have free-form lenses made out of high refractive index materials, allowing for better performance and more potential applications.

Our lensed fibers have a high refractive index, making them immersion compatible and capable of producing near diffraction-limited focal spots. This allows for better coupling of light, optical trapping, and other applications.

The focal spot size is approximately 8μm, the working distance is 1.5-20μm, and the refractive index of the material is 1.69@590nm. It is compatible with any single mode or multimode fiber, with the focal spot being diffraction limited for single mode fibers. Optical testing is available in the 400-1100 nm spectral range.

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