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0.1-nm narrow bandwidth transmission of a 2.5-Gb/s spectrum-sliced incoherent light channel using an all-optical bandwidth expansion technique at the receiver

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4 Author(s)
Jung-Hee Han ; Opt. Multiplexing Team, Electron. & Telecommun. Res. Inst., Daejeon, South Korea ; Joon-Won Ko ; Jae-Seung Lee ; Sang-Yung Shin

We introduce a new all-optical technique to transmit a spectrum-sliced incoherent channel with its optical bandwidth smaller than the conventional limit. As a demonstration, we reduce the optical bandwidth to only 0.1 nm for the 2.5-Gb/s incoherent channel transmission. Even though the signal-to-noise ratio (SNR) is poor during the transmission, sufficient SNR can be obtained through the intrachannel four-wave mixing at the receiver. With this slim bandwidth transmission technique, the maximum number of spectrum-sliced wavelength-division-multiplexed channels can be increased greatly and the dispersion penalty can be reduced simultaneously.

Published in:

Photonics Technology Letters, IEEE  (Volume:10 ,  Issue: 10 )

Date of Publication:

Oct. 1998

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