ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Compact Hybrid-Integrated 4 × 80-Gbps TROSA Module Using Optical Butt-Coupling of DML/SI-PD and Silica AWG Chips
Cited 0 time in scopus Download 3 time Share share facebook twitter linkedin kakaostory
저자
윤석준, 한영탁, 김석태, 신장욱, 박상호, 이동훈, 이서영, 백용순
발행일
202104
출처
IEEE/OSA Journal of Lightwave Technology, v.39 no.8, pp.2468-2475
ISSN
0733-8724
출판사
Optical Society of America (OSA)
DOI
https://dx.doi.org/10.1109/JLT.2021.3051067
협약과제
20HB1800, 데이터센터 통신용량 증대를 위한 저전력 On-Board 집적 400Gbps 광송수신 엔진 기술, 백용순
초록
We have developed a compact 4 × 80-Gbps transmitter-receiver optical subassembly (TROSA) module using a chip-to-chip optical butt-coupling method. For a Tx submodule, four directly modulated laser (DML) chips precisely bonded on a silicon DML-carrier are simultaneously butt-coupled to a vertically polished silica-based arrayed waveguide grating (AWG) chip, revealing good optical characteristics insensitive to external optical feedback. A Rx submodule is realized by passive alignment between a 45째-polished AWG and four surface-illuminated (SI)-PD chips, and subsequently integrated with the Tx submodule into a single package case to form the compact TROSA module whose size is only 25 mm × 15 mm × 6.4 mm and compliant to fit into the QSFP-DD/OSFP transceiver. The fabricated TROSA module shows clear Tx optical eye patterns at 80-Gbps PAM4 signals for all channels, achieving the Rx sensitivities within -7.1~-6 dBm at a bit error rate (BER) of 2.4 × 10-4.
키워드
4-level pulse amplitude modulation (PAM4), Datacenter, directly modulated laser (DML), optical butt-coupling, silica-based planar lightwave circuit (PLC), surface-illuminated (SI)-PD, transmitter-receiver optical subassembly (TROSA)
KSP 제안 키워드
4-level pulse amplitude modulation(PAM-4), Bit Error Rate(And BER), Coupling method, Directly modulated laser(DML), Optical characteristics, PAM4 signals, Planar lightwave circuit(PLC), Silica-based, Transmitter and receiver, arrayed waveguide grating(AWG), butt-coupling