LBTEK GRIN lenses are designed to be used with fiber optic ferrules. After inserting the corresponding fiber and lens into the ferrule sleeve, adjust the distance and bond them using optical curing adhesive. LBTEK offers GRIN lenses with two pitch lengths: 0.23 pitch and 0.29 pitch, which serve different purposes during use (1 pitch refers to the length of one cycle at the operating wavelength; please refer to the technical specifications label for details). The 0.23 pitch can be used for fiber collimation, while the 0.29 pitch is suitable for fiber coupling. The 0.23 pitch lens features an 8° angled end face to increase return loss during fiber collimation, whereas the 0.29 pitch lens has 0° end faces on both sides to ensure better alignment during fiber coupling.

LBTEK offers GRL lens ferrule sleeves made of high borosilicate glass, which features excellent fire resistance and high physical strength. Compared to ordinary glass, it is non-toxic and free from side effects, with significantly improved mechanical properties, thermal stability, and resistance to water, alkali, and acid. With an inner diameter of 1.81 mm, it is suitable for use with GRL series lenses and pigtail fibers.