Suppression of optical beat interference in WDM-SCMA networks using modulated optical combs

Hyun Do Jung, Yong Yuk Won, Sang Kook Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We proposed a new method to suppress the optical beat interference (OBI) in WDM/SCMA network. The proposed scheme uses the modulated optical combs. Since short optical pulse in time domain has broad linewidth in frequency domain, the generated OBI noise by beating of optical comb signals from several optical network unit(ONU)s spreads over wide frequency range. In addition, the chance of optical beating is low because optical pulse trains from different ONU have different pulse timing. We have demonstrated the proposed idea experimentally. In beating experiment, CNR was maintained over 20dBc despite of optical beating. In addition, optical comb modulation scheme showed 4dB enhancement of the power penalty in BER measurement compared with the generally used direct modulation case in presence of OBI noise.

Original languageEnglish
Title of host publication2005 IEEE MTT-S International Microwave Symposium Digest
Pages2131-2133
Number of pages3
Volume2005
DOIs
Publication statusPublished - 2005 Dec 1
Event2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States
Duration: 2005 Jun 122005 Jun 17

Other

Other2005 IEEE MTT-S International Microwave Symposium
CountryUnited States
CityLong Beach, CA
Period05/6/1205/6/17

Fingerprint

Light interference
Wavelength division multiplexing
Laser pulses
synchronism
retarding
Fiber optic networks
interference
pulses
Modulation
light modulation
penalties
Linewidth
optical communication
frequency ranges
time measurement
modulation
augmentation
Experiments

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Jung, H. D., Won, Y. Y., & Han, S. K. (2005). Suppression of optical beat interference in WDM-SCMA networks using modulated optical combs. In 2005 IEEE MTT-S International Microwave Symposium Digest (Vol. 2005, pp. 2131-2133). [1517169] https://doi.org/10.1109/MWSYM.2005.1517169
Jung, Hyun Do ; Won, Yong Yuk ; Han, Sang Kook. / Suppression of optical beat interference in WDM-SCMA networks using modulated optical combs. 2005 IEEE MTT-S International Microwave Symposium Digest. Vol. 2005 2005. pp. 2131-2133
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Jung, HD, Won, YY & Han, SK 2005, Suppression of optical beat interference in WDM-SCMA networks using modulated optical combs. in 2005 IEEE MTT-S International Microwave Symposium Digest. vol. 2005, 1517169, pp. 2131-2133, 2005 IEEE MTT-S International Microwave Symposium, Long Beach, CA, United States, 05/6/12. https://doi.org/10.1109/MWSYM.2005.1517169

Suppression of optical beat interference in WDM-SCMA networks using modulated optical combs. / Jung, Hyun Do; Won, Yong Yuk; Han, Sang Kook.

2005 IEEE MTT-S International Microwave Symposium Digest. Vol. 2005 2005. p. 2131-2133 1517169.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - We proposed a new method to suppress the optical beat interference (OBI) in WDM/SCMA network. The proposed scheme uses the modulated optical combs. Since short optical pulse in time domain has broad linewidth in frequency domain, the generated OBI noise by beating of optical comb signals from several optical network unit(ONU)s spreads over wide frequency range. In addition, the chance of optical beating is low because optical pulse trains from different ONU have different pulse timing. We have demonstrated the proposed idea experimentally. In beating experiment, CNR was maintained over 20dBc despite of optical beating. In addition, optical comb modulation scheme showed 4dB enhancement of the power penalty in BER measurement compared with the generally used direct modulation case in presence of OBI noise.

AB - We proposed a new method to suppress the optical beat interference (OBI) in WDM/SCMA network. The proposed scheme uses the modulated optical combs. Since short optical pulse in time domain has broad linewidth in frequency domain, the generated OBI noise by beating of optical comb signals from several optical network unit(ONU)s spreads over wide frequency range. In addition, the chance of optical beating is low because optical pulse trains from different ONU have different pulse timing. We have demonstrated the proposed idea experimentally. In beating experiment, CNR was maintained over 20dBc despite of optical beating. In addition, optical comb modulation scheme showed 4dB enhancement of the power penalty in BER measurement compared with the generally used direct modulation case in presence of OBI noise.

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Jung HD, Won YY, Han SK. Suppression of optical beat interference in WDM-SCMA networks using modulated optical combs. In 2005 IEEE MTT-S International Microwave Symposium Digest. Vol. 2005. 2005. p. 2131-2133. 1517169 https://doi.org/10.1109/MWSYM.2005.1517169