Annealing Effects on Optical Losses in 3D-Printed Silica Fiber

Publisher:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:
Journal Article
Citation:
IEEE Photonics Technology Letters, 2022, 34, (4), pp. 199-202
Issue Date:
2022-02-15
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Annealing effects on optical losses in silica optical fiber drawn from 3D-printed preform were investigated. An irreversible reduction in loss was observed through multiple annealing cycles at a temperature T = 800 ° C. Changes in Raman spectroscopy confirm densification of the core as the stresses in glass relax with annealing. The temperature-dependent loss in the 3D printed fiber is consistent with modal field overlap at the core-cladding interface.
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