All-fiber wavelength-tunable acoustooptic switches based on intermodal coupling in fibers

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In this paper, we demonstrate a novel all-fiber wavelength-tunable acoustooptic switch utilizing intermodal coupling in a two-mode fiber (TMF). Its all-fiber configuration consisting of a fiber acoustooptic tunable filter and a mode-selective coupler results in the low loss (< 2 dB) operation. The operating bandwidth > 50 nm, the switching time of 40 musec, and the crosstalk of 20 dB were achieved. By controlling the design parameters of the two-mode fiber, the 3-dB bandwidth of the switched signal was varied from 2.5 nm to > 35 nm. A novel all-fiber dynamic optical add-drop multiplexer is also demonstrated using two acoustooptic switches in series.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2002-10
Language
English
Article Type
Article
Keywords

2-MODE FIBER; FILTER

Citation

JOURNAL OF LIGHTWAVE TECHNOLOGY, v.20, pp.1864 - 1868

ISSN
0733-8724
URI
http://hdl.handle.net/10203/19832
Appears in Collection
PH-Journal Papers(저널논문)
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