aBeam Technologies Fresnel Fiber Lens
Description
Lensed fiber is an optical fiber with the tip shaped like a lens. Lensed fibers are used in integrated optics, optical trapping, and fiber sensors. Lens fiber creates a tight focal spot at some distance away from the fiber edge. This tight focal spot can be used to couple light into an optical chip, or collect light from a laser diode or even trap a microparticle. Conventional lensed fibers are made using polishing, laser cutting or plasma arc. All these techniques restrict the shape and material of the lens, which limits the performance and potential applications. Using our fiber nanoimprint technology we were able to remove these constraints. Our lensed fibers have free-form lenses that are made out of high refractive index materials.
aBeam Technologies Fresnel Fiber Lens
Specifications |
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|---|---|
| Focal Spot Size: | 800 nm |
| Working Distance: | 1.5 um |
| Central Wavelength: | 660 nm |
Features
Near diffraction-limited focal spot
Elliptical or circular focal spot options
High refractive index
Immersion compatible
Highly reproducible
Applications
Immersion applications
Laser-to-fiber coupling
Integrated optics
Optical trapping
Biosensors
Material processing
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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.