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Title of Journal: Optoelectron Lett

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Abbravation: Optoelectronics Letters

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Tianjin University of Technology

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DOI

10.1007/s11747-011-0251-8

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1993-5013

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Generation of an ultrawideband triplet signal bas

Authors: Qiang Ma Peili Li Jiajin Zheng Danhong Shen Meng Zhao Wen Zhou Zanshan Zhao
Publish Date: 2013/05/04
Volume: 9, Issue: 3, Pages: 161-164
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Abstract

We propose a novel ultrawideband UWB triplet signal source based on the crossgain modulation XGM in semiconductor optical amplifier SOA In the proposed scheme only an optical source and two SOAs are needed so the alloptical structure is compact A triplet optical pulse with center frequency of 625 GHz and fractional bandwidth of 83 is obtained by the scheme The extinction ratio can be improved by the counterpropagating scheme The triplet pulse signal with only one wavelength can be easily controlled and can aviod the dispersion effect The output triplet pulse signal is insensitive to the light wavelength shifts its available wavelength range is wide the dynamic range of the input power is more than 6 dBm and the bias current of the SOAs is exhibited

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