Abstract

The intensity of light radiated from a fiber-optic light tap is observed to depend sensitively on the phase difference between LP₀₁ and LP₀₂ modes in a few-mode fiber. This observation is used to design a novel dual-mode interferometer in which light loss through the light tap is monitored, eliminating the need for a bulky spatial filter at the exit end of the fiber. Application of the device as an interferometric temperature sensor is described.

© 1996 Optical Society of America

LP₀₁–LP₀₂ interference using a spectrally extended light source: measurement of the non-step-refractive-index profile of optical fibers

R. Posey, L. Phillips, D. Diggs, and A. Sharma
Opt. Lett. 21(17) 1357-1359 (1996)

Analysis of a fiber-optic LP₀₁ ↔ LP₀₂ mode converter

Chao-Xiang Shi and Takanori Okoshi
Opt. Lett. 17(10) 719-721 (1992)

Dual-mode fiber-optic interferometer: a novel design

A. Sharma and R. Posey
Opt. Lett. 20(22) 2345-2347 (1995)

Analysis of optical fiber-based LP₀₁ ↔ LP₀₂ mode converters for the O-, S-, and C-Band

Hakim Mellah, Xiupu Zhang, and Dongya Shen
Appl. Opt. 54(17) 5568-5575 (2015)

Design of broadband LP₀₁↔LP₀₂ mode converter based on special dual-core fiber for dispersion compensation

Ganbin Lin and Xiaopeng Dong
Appl. Opt. 51(19) 4388-4393 (2012)