Conference Proceeding

Simple method for differential mode delay of a multimode optical fiber using Fourier-domain intermodal interference analysis

10/2007; DOI:10.1109/CLEOPR.2007.4391353 pp.1 - 2 In proceeding of: Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Source: IEEE Xplore

ABSTRACT We present a novel differential mode delay (DMD) measurement method for a multimode optical fiber (MMF) based on Fourier-domain low-coherence interferometry (fLCI) for the first time. An optical spectrum analyzer and a mode scrambler were used to obtain intermodal interference signal in spectral-domain after light pass an MMF. The MMF was used as a common path interferometer by itself without using any reference arm in an interferometer. Our proposed method can measure a short or long optical multimode fiber simply, accurately, and rapidly.

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Keywords

common path interferometer
 
Fourier-domain low-coherence interferometry
 
intermodal interference signal
 
mode scrambler
 
multimode optical fiber
 
novel differential mode delay
 
optical multimode fiber
 
reference arm
 
short
 

J Y Lee