A silica leakage channel microstructured optical fiber (LCMOF) is firstly drawn from a 3D printed preform. The LCMOF realized the optical signal transmission of supercontinuum spectrum from 600 nm to 1650 nm and the measured propagation loss is 15 dB/m at 632 nm and 19.5 dB/m at 1064 nm. The bending loss is 5 dB/m with 15 cm radius and 7.3 dB/m with 5 cm radius. The refractive index fluctuation is less than 7×10-4 in the fiber core region. The structure of LCMOF can be adjusted effectively by altering the pre-designed preform and optimizing drawing temperature, which result in the less defects and lower loss.
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