Abstract
We propose a broadband light-tapping technique, where an input fiber excites the cladding modes of an output fiber through a gap between the two fibers, and the cladding modes of the output fiber are transferred to a parallel tapping fiber through evanescent-field coupling between the two fibers. The tapping efficiency and the excess loss of the fiber tap depend on the fiber type and the gap distance between the input fiber and the output fiber. We demonstrate the technique with standard single-mode fibers and photonic crystal fibers and discuss its performance. The proposed tap configuration is applicable to practically any fibers and could be further developed into useful light-tapping devices or sensors. © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE).
| Original language | English |
|---|---|
| Article number | 75001 |
| Journal | Optical Engineering |
| Volume | 51 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2012 |
Research Keywords
- optical coupler
- optical fiber
- optical fiber tap
- photonic crystal fiber
Publisher's Copyright Statement
- COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: Copyright © 2012 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited. Chunshu Zhang and Kin-Seng Chiang "Broadband optical fiber tap based on cladding-mode coupling," Optical Engineering 51(7), 075001 (18 July 2012). https://doi.org/10.1117/1.OE.51.7.075001.