ㅇ 제목 : Trans-Atlantic Field Trial

ㅇ 일시 : 2017년 8월 9일 (수) 오후 3시~

ㅇ 장소 : ETRI 7동 314호 회의실

ㅇ 강사 : 조준호 박사 (노키아 벨랩)

ㅇ 요약 :

We report the transmission of probabilistically shaped (PS) 64-ary quadrature amplitude modulation (QAM) at 7.46 b/s/Hz over a 5,523-km in-service trans-Atlantic fiber-optic cable that consists of 65 spans of EDFA-only amplified 89 km fiber. Using a looped-back system configuration, we achieve 5.68 b/s/Hz over a trans-Pacific-equivalent distance of 11,046 km. Net spectral efficiencies are increased by 18% and 80% by using PS, at 5,523 km and 11,046 km, respectively, compared to uniform square QAM. Throughout our experiments, we pay particular attention that our claims are backed by actually achievable forward error correction schemes. In addition, we demonstrate real-time coherent transmission of single-carrier 200-Gb/s and 250-Gb/s uniform 8-QAM and 16-QAM at 4 b/s/Hz over the 5,523-km cable.