Direct-Detection Receiver for Polarization-Division-Multiplexed OOK Signals

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We propose a direct-detection receiver capable of detecting polarization-division-multiplexed (PDM) ON-OFF keying (OOK) signals without using a dynamic polarization controller. The proposed receiver, consisted of a polarization-beam splitter, three 1 x 2 directional couplers, three photodetectors, three analog-to-digital converters, and a digital signal processing unit, can discriminate among the four symbol combinations of the PDM-OOK signal with the help of a short training sequence. For a demonstration, we show that the proposed receiver can detect a 20-Gb/s PDM-OOK signal even when its polarization is scrambled at the speed of 3 Mrad/s.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2015-11
Language
English
Article Type
Article
Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.27, no.21, pp.2238 - 2241

ISSN
1041-1135
DOI
10.1109/LPT.2015.2457936
URI
http://hdl.handle.net/10203/205201
Appears in Collection
EE-Journal Papers(저널논문)
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