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 language | English |
|---|---|
| Title of host publication | 2005 IEEE MTT-S International Microwave Symposium Digest |
| Pages | 2131-2133 |
| Number of pages | 3 |
| Volume | 2005 |
| DOIs | |
| Publication status | Published - 2005 Dec 1 |
| Event | 2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States Duration: 2005 Jun 12 → 2005 Jun 17 |
Other
| Other | 2005 IEEE MTT-S International Microwave Symposium |
|---|---|
| Country | United States |
| City | Long Beach, CA |
| Period | 05/6/12 → 05/6/17 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
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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 proceeding › Conference contribution
TY - GEN
T1 - Suppression of optical beat interference in WDM-SCMA networks using modulated optical combs
AU - Jung, Hyun Do
AU - Won, Yong Yuk
AU - Han, Sang Kook
PY - 2005/12/1
Y1 - 2005/12/1
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.
UR - http://www.scopus.com/inward/record.url?scp=33749239832&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33749239832&partnerID=8YFLogxK
U2 - 10.1109/MWSYM.2005.1517169
DO - 10.1109/MWSYM.2005.1517169
M3 - Conference contribution
SN - 0780388461
SN - 9780780388468
VL - 2005
SP - 2131
EP - 2133
BT - 2005 IEEE MTT-S International Microwave Symposium Digest
ER -