The Technology for Manufacturing a Lensed Optical Fiber Using Optical Resin

The technology for manufacturing optical microlenses on the end of an optical fiber using optical resin is considered. The method of dosing and positioning an adhesive microdroplet is implemented, which allows placement of a resin volume of ~0.2 pL with an error of at most 1 μm at the end of the optical fiber in the core region. The selection of optical resin that maximally meets the requirements of the technological process and physicochemical properties of microlenses has been performed. It is shown that the use of microvibrations makes it possible to control the droplet shape, whose polymerization makes it possible to obtain a lensed fiber with a given shape and focal length. The results of measuring the focal length and the diameter of the mode field of the resulting lens are presented.