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10 000-hop cascaded in-line all-optical 3R regeneration to achieve 1 250 000-km 10-Gb/s transmission

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5 Author(s)
Zuqing Zhu ; Dept. of Electr. & Comput. Eng., Univ. of California, Davis, CA, USA ; Funabashi, M. ; Zhong Pan ; Paraschis, L.
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We demonstrate 1 250 000-km 10-Gb/s return-to-zero transmission over 10 000 stages of in-line all-optical reamplification, reshaping, and retiming (3R) regeneration spaced every 125 km. The all-optical 3R regenerator incorporates a 10-GHz all-optical clock recovery module including a Fabry-Pe´rot filter and a semiconductor optical amplifier in a cascaded configuration for fast and stable response. Bit-error-rate (BER) performance measurements show less than 0.7-dB power penalty at the BER of 10-9 between 1 250 000- (Lap 10 000) and 125-km (Lap 1) transmission using pseudorandom bit sequence 223-1.

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 5 )