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Effect of the Phase-Error of Local Oscillators in Digital Back-Propagation
- Authors
- Park, Sang-Gyu
- Issue Date
- Feb-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Optical fiber communication; digital back propagation; WDM transmission; phase-error of local oscillators
- Citation
- IEEE PHOTONICS TECHNOLOGY LETTERS, v.27, no.4, pp.363 - 366
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE PHOTONICS TECHNOLOGY LETTERS
- Volume
- 27
- Number
- 4
- Start Page
- 363
- End Page
- 366
- ISSN
- 1041-1135
- Abstract
- The effect of the phase-error of local oscillators (LOs) on the performance of wavelength-division multiplexing (WDM) optical transmission systems employing digital back-propagation (DBP) is investigated. A simple model describing the performance degradation due to the phase-error is developed, and the validity of it is demonstrated by numerical simulations of 20-GHz-spaced-nine-channel orthogonal frequency division multiplexing (OFDM)-modulated transmissions. It is also shown that, whereas the variance of the phase-error should be less than 5 degrees for the full benefit of the DBP, the performance is significantly improved by the DBP even when there is no control on the phase of LOs.
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Related Researcher
- Park, Sang Gyu
- COLLEGE OF ENGINEERING (SCHOOL OF ELECTRONIC ENGINEERING)