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40-GHz Pulse Generation Based on Two Cascaded Electro-Absorption Modulators Driven by 20GHz-Sine-Wave Signal

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Abstract:

A 40-GHz optical pulse train is generated by using of one optical delay line and two cascaded electro-absorption modulators driven by 20GHz-sine-wave signal at very low bias voltage (-0.8V) in conjunction with a tunable distributed feedback (DFB) semiconductor laser. An approximate transform-limited optical pulse, with pulse duration of width less than 7ps, the spectral width of 0.3nm and the side-mode suppression ratio (SMSR) of about 17dB was obtained in experiment. Keywords: OTDM, EAMs, optical pulse, less cost.

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Periodical:

Advanced Materials Research (Volumes 694-697)

Pages:

1399-1402

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.694-697.1399

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Online since:

May 2013

Authors:

Cheng Hu, Qi Zheng, Xiao Yong Xiong

Keywords:

EAMs, Less Cost, Optical Pulse, OTDM

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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