Method of making optical devices

摘要: A fiber optic coupler is formed by providing a glass tube having longitudinal aperture extending therethrough. Glass optical fibers, each core, cladding and coating are disposed within the aperture, fibers beyond end thereof. The removed from that portion of in midregion tube. heated, collapsed about drawn to reduce diameter thereof over predetermined length. used process making initially provided with too thin provide good handleability strength. However, initial enables use small thereby enhances collapse step. After formed, therefrom overcoated. can be make other kinds devices including integrated components.