Measurement of the diameter of the thinned optical fiber based on the spatial period of standing wave

Yushen Liu; Shotaro Kadoya; Masaki Michihata; Satoru Takahashi

doi:10.1117/12.3005531

20 September 2023 Measurement of the diameter of the thinned optical fiber based on the spatial period of standing wave

Yushen Liu, Shotaro Kadoya, Masaki Michihata, Satoru Takahashi

Proceedings Volume 12607, Optical Technology and Measurement for Industrial Applications Conference; 1260709 (2023) https://doi.org/10.1117/12.3005531
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

Diameter is one of the most fundamental and important parameters that characterize the optical properties of a tapered fiber, so it is necessary to accurately measure its diameter. In this study, we proposed a method for measuring the diameter in the sub-1 µm diameter region of a tapered fiber by measuring the spatial period of the standing wave formed by counter-propagating light waves incident from its both sides. We used a scanning near-field optical microscopy (SNOM) probe fabricated from an optical fiber to measure the standing wave intensity distribution along the tapered fiber axial direction and its spatial period, from which the tapered fiber diameter can be estimated.

Citation Download Citation

Yushen Liu, Shotaro Kadoya, Masaki Michihata, and Satoru Takahashi "Measurement of the diameter of the thinned optical fiber based on the spatial period of standing wave", Proc. SPIE 12607, Optical Technology and Measurement for Industrial Applications Conference, 1260709 (20 September 2023); https://doi.org/10.1117/12.3005531

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