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Journal Article Effect of IQ Mismatch Compensation in an Optical Coherent OFDM Receiver
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Authors
Hwan Seok Chung, Sun Hyok Chang, Kwangjoon Kim
Issue Date
2010-03
Citation
IEEE Photonics Technology Letters, v.22, no.5, pp.308-310
ISSN
1041-1135
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/LPT.2009.2039208
Project Code
09MH1200, 100Gbps Ethernet and optical transmission technology development, Kim Kwangjoon
Abstract
The performance enhancement using the Gram-Schmidt orthogonalization procedure (GSOP) for compensating transmitter (Tx) and receiver (Rx) in-phase/quadrature (IQ) mismatch in the coherent optical orthogonal frequency-division-multiplexing system is investigated. The analytic result containing frequency offset is presented to describe the different behavior of Tx and Rx IQ mismatch. Bit-error-rate curves measured at back-to-back and 1040-km transmission over single-mode fiber indicate that the GSOP is more efficient to compensate of Rx IQ mismatch than Tx IQ mismatch. © 2010 IEEE.
KSP Keywords
Analytic result, Bit-error-rate(BER), Coherent OFDM, Gram-Schmidt orthogonalization procedure(GSOP), IQ mismatch, In-phase, Mismatch compensation, OFDM receiver, Optical coherent, Orthogonal frequency division Multiplexing(OFDM), Single-mode fiber(SMF)