Abstract: “We report the simple fabrication technique of polymer microfiber with high surface smoothness and length uniformity using a molten polymethyl methacrylate (PMMA) in conjunction with direct drawing technique. With the aid of fabricated polymer microfiber, we successfully demonstrate a new splicing technique via two steps processes. The fabricated microfiber with diameter of 1.5 µm and length of 3 mm has been used in splicing the silica microfibers based on solvent vapor spray and flame treatment process. The permanent splicing has been achieved after silica fiber fused with flame and polymer fiber is removed. We were able to obtain an average splicing loss of about -0.69 dB. Using the same technique, we also demonstrated the splicing for ring resonator. The splicing technique demonstrated here promises high potential for robust optical integration of microfibers for various functional circuits and devices”

Keywords: optical fiber, sensors