Abstract

Capillary optical fibers with hole diameters of several micrometers are important for novel plasmonic applications and medical diagnosis. In order to ensure the optical functionality of these fibers, the diameter of the capillary hole needs to be realized with high accuracy. Here, we introduce a novel and noninvasive methodology to characterize optical fibers and discuss it for the assessment of capillaries. In this method, the fiber is side-illuminated by a coherent beam, and the resulting diffraction pattern is analyzed. This corresponds to an in-line holographic measurement in the presence of strong scattering. A numerical parameter retrieval allows us to characterize the capillary hole diameter with an accuracy of approximately 100 nm for radii between several hundreds of nanometers and several tens of micrometers.

© 2017 Optical Society of America

Microemulsion characterization by the use of a noninvasive backscatter fiber optic probe

Rafat R. Ansari, Harbans S. Dhadwal, H. Michael Cheung, and William V. Meyer
Appl. Opt. 32(21) 3822-3827 (1993)

Characterization of spatiotemporal chaos in a Kerr optical frequency comb and in all fiber cavities

Z. Liu, M. Ouali, S. Coulibaly, M. G. Clerc, M. Taki, and M. Tlidi
Opt. Lett. 42(6) 1063-1066 (2017)

Characterization of optical frequency transfer over 154 km of aerial fiber

David R. Gozzard, Sascha W. Schediwy, Bruce Wallace, Romeo Gamatham, and Keith Grainge
Opt. Lett. 42(11) 2197-2200 (2017)

Characterization of a liquid-filled nodeless anti-resonant fiber for biochemical sensing

Xiao-lu Liu, Wei Ding, Ying-ying Wang, Shou-fei Gao, Ling Cao, Xian Feng, and Pu Wang
Opt. Lett. 42(4) 863-866 (2017)

Bending effect characterization of individual higher-order modes in few-mode fibers

Yao Xu, Guobin Ren, Youchao Jiang, Yixiao Gao, Haisu Li, Wenxing Jin, Yue Wu, Ya Shen, and Shuisheng Jian
Opt. Lett. 42(17) 3343-3346 (2017)