Gradient Index (GRIN) lenses have a radially varying index of refraction and that causes an optical ray to follow a sinusoidal propagation path through the lens. Carefully designing the lenses for specific working distances GRIN lenses are easy to handle and integrate into optical systems. Typical applications include coupling the output of diode lasers into fibers, focusing laser light onto a detector, or collimating laser light.
Laserand offers 0.25 and 0.23 pitch GRIN lenses. 0.25 pitch lenses have 0 mm working distance and are best suited for beam colimation of optical fibers or laser diodes. Where the lenses can't be directly contacted best option would be 0.23 pitch GRIN lenses, they have small working distance and are mainly used for focusing purpose. To reduce back reflections Laserand offers lenses with one 8° wedged face and broad band antireflection coating.
If required GRIN lens is not in the list of standard items, please submit request form for the lens you need.