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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
- 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, Back to Back(BTB), Bit Error rate, Coherent OFDM, Gram-Schmidt orthogonalization procedure(GSOP), IQ mismatch, In-phase, Mismatch compensation, OFDM receiver, Optical coherent, Orthogonal Frequency-Division Multiplexing(OFDM)