BROWSE
Detail
Journal Article
Compensation of IQ mismatch in optical PDM–OFDM coherent receivers
Cited 11 time in 
Share 
Share
- Authors
- Hwan Seok Chung, Sun Hyok Chang, Kwangjoon Kim
- Issue Date
- 2010-10
- Citation
- Optical Fiber Technology, v.16, no.5, pp.304-308
- ISSN
- 1068-5200
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- The performance enhancements based on Gram-Schmidt orthogonalization procedure (GSOP) for compensating IQ mismatch in coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems are investigated. We analytically explore IQ mismatch in optical OFDM systems and investigate the impacts of phase and amplitude IQ mismatch on required optical signal-to-noise ratio (OSNR) for the different values of data mapping and polarization multiplexing. The impacts of analog-to-digital converter (ADC) resolution and the number of samples in GSOP are also evaluated. The results show that the GSOP operation efficiently compensate IQ mismatch induced performance degradations regardless of the amount of IQ phase mismatch, density of data mapping, and polarization multiplexing. © 2010 Elsevier Inc. All rights reserved.
- KSP Keywords
- Analog-to-digital converters(ADCs), Coherent optical orthogonal frequency division multiplexing(CO-OFDM), Coherent receiver, Data mapping, Gram-Schmidt orthogonalization procedure(GSOP), IQ mismatch, OFDM systems, Optical OFDM, Orthogonal Frequency-Division Multiplexing(OFDM), Phase mismatch, Polarization multiplexing