{"title":"Nonlinearity Tolerance of Time-Domain Single Carrier Index Modulation Signals in Optical Access Links","authors":"Daichi Aoki;Wataru Imajuku","doi":"10.23919/comex.2024XBL0121","DOIUrl":null,"url":null,"abstract":"This paper investigates the impact of nonlinear optical effects on Time-Domain Single Carrier Index Modulation (TDSC-IM) optical signals in Wavelength Division Multiplexing-Passive Optical Network (WDM-PON) systems that use standard single-mode fibers. Simulations indicate that TDSC-IM optical signals with high peak-to-average power ratio (PAPR) can maintain sufficient signal-to-noise ratios (SNRs) in C-band transmission in optical delivery networks with standard single mode fibers, while O-band transmission suffers larger nonlinear effects. This paper demonstrates that the degradation in the SNRs of the 25 GBaud quaternary phase shift keying (QPSK) based TDSC-IM optical signals can be less than 1 dB for 8 wavelength channel WDM-PON systems with 50 GHz spacing.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10633222","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEICE Communications Express","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10633222/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
This paper investigates the impact of nonlinear optical effects on Time-Domain Single Carrier Index Modulation (TDSC-IM) optical signals in Wavelength Division Multiplexing-Passive Optical Network (WDM-PON) systems that use standard single-mode fibers. Simulations indicate that TDSC-IM optical signals with high peak-to-average power ratio (PAPR) can maintain sufficient signal-to-noise ratios (SNRs) in C-band transmission in optical delivery networks with standard single mode fibers, while O-band transmission suffers larger nonlinear effects. This paper demonstrates that the degradation in the SNRs of the 25 GBaud quaternary phase shift keying (QPSK) based TDSC-IM optical signals can be less than 1 dB for 8 wavelength channel WDM-PON systems with 50 GHz spacing.
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