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Optical Engineering

Wideband continuously tunable optical delay line based on wavelength conversion in reflective semiconductor optical amplifiers and fiber dispersion
Author(s): Zhefeng Hu; Junqiang Sun
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Paper Abstract

Two schemes of all-optical tunable delay line are proposed and experimentally demonstrated based on wavelength conversion in reflective semiconductor optical amplifiers (RSOAs) and group-velocity dispersion (GVD) in optical fiber. In the first scheme, large optical delays are shown for a 10 Gbits/s non-return-to-zero (NRZ) signal at short wavelength in the C band. In the second scheme, large optical delays are obtained in the whole C band. The proposed schemes achieve continuously tunable delays with nearly no pulse broadening and very little spectral distortion.

Paper Details

Date Published: 1 October 2009
PDF: 6 pages
Opt. Eng. 48(10) 105004 doi: 10.1117/1.3242827
Published in: Optical Engineering Volume 48, Issue 10
Show Author Affiliations
Zhefeng Hu, Huazhong Univ. of Science and Technology (China)
Junqiang Sun, Huazhong Univ. of Science and Technology (China)


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