Quantitative in situ measurement of optical force along a strand of cleaved silica optical fiber induced by the light guided therewithin

MIKKO PARTANEN, HYEONWOO LEE, KYUNGHWAN OH

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We propose an optomechanical system to quantify the net force on a strand of cleaved silica optical fiber in situ as the laser light is being guided through it. Four strands of the fiber were bonded to both sides of a macroscopic oscillator, whose movements were accurately monitored by a Michelson interferometer. The laser light was propagating with variable optical powers and frequency modulations. Experimentally, we discovered that the driving force for the oscillator consisted of not only the optical force of the light exiting from the cleaved facets but also the tension along the fiber induced by the light guided therewithin. The net driving force was determined only by the optical power, refractive index of the fiber, and the speed of light, which pinpoints its fundamental origin.

Original languageEnglish
Pages (from-to)2016-2023
Number of pages8
JournalPhotonics Research
Volume9
Issue number10
DOIs
Publication statusPublished - 2021 Oct 1

Bibliographical note

Publisher Copyright:
© 2021 Chinese Laser Press.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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