Abstract
We propose a novel mode analysis and differential mode delay measurement method for an optical fiber using Fourier-domain low-coherence interferometry. A spectral interferometer based on a Mach-Zehnder interferometer setup was used with a broadband source and an optical spectrum analyzer to detect relative temporal delays between the guided modes of a few-mode optical fiber by analyzing spectral interference signals. We have shown that experimental results of the proposed method agree well with those results obtained by using a conventional time-domain measurement method. We have demonstrated that this new mode analysis technique has high sensitivity (<60 dB) and very good resolution (<1 ps/m).
Original language | English |
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Pages (from-to) | 2396-2398 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 31 |
Issue number | 16 |
DOIs | |
Publication status | Published - 2006 Aug 15 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics