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

Author

Park, Hee Su ; Song, Kwang Yong ; Yun, Seok Hyun ; Kim, Byoung Yoon

Author_Institution

Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

20

Issue

10

fYear

2002

fDate

10/1/2002 12:00:00 AM

Firstpage

1864

Lastpage

1868

Abstract

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 μsec, 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.

Keywords

acousto-optical filters; optical communication equipment; optical crosstalk; optical fibre filters; optical fibre losses; optical switches; optical tuning; wavelength division multiplexing; 2 dB; acoustooptic switches; all-fiber configuration; all-fiber dynamic optical add-drop multiplexer; all-fiber wavelength-tunable acoustooptic switch; all-fiber wavelength-tunable acoustooptic switches; design parameters; fiber acoustooptic tunable filter; intermodal fibre coupling; low loss operation; mode-selective coupler; switched signal bandwidth; switching time; two-mode fiber; Optical crosstalk; Optical fiber couplers; Optical fiber devices; Optical fiber networks; Optical fiber polarization; Optical fibers; Optical films; Optical filters; Optical switches; Optical waveguides;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2002.804035

Filename

1159243