**4. Conclusions**

In this chapter, we mainly introduced the fabrication of optical fibers using additive manufacturing technology and briefly presented the basic concepts of optical fibers and typical additive manufacturing techniques. Compared with traditional waveguide manufacturing techniques, such as CVD, additive manufacturing technology has higher manufacturing precision and manufacturing efficiency and lower manufacturing costs. At the same time, additive manufacturing technology exhibits unparalleled flexibility in structural and material designs that is essential to the realization of new and multifunctional optical fibers and devices.
