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Journal Article Verification of Hybrid-integrated 400-Gb/s (4 × 100 Gb/s) CWDM4 ROSA using a Bandwidth-improved Multilayer Board
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Authors
Sae-Kyoung Kang, Joon Young Huh, Jongtae Song, Joon Ki Lee
Issue Date
2020-10
Citation
Optics Express, v.28, no.22, pp.33094-33105
ISSN
1094-4087
Publisher
Optical Society of America (OSA)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1364/OE.405107
Abstract
We have successfully demonstrated a hybrid-integrated 400-Gb/s (4 × 100 Gb/s) CWDM4 PAM-4 receiver optical sub-assembly (ROSA) with a bandwidth-improved multilayer evaluation board. The proposed ROSA offers packaging simplification through passive optical alignment assembly of main components. In addition, we have proposed a structure to mitigate the bandwidth limitation issue caused by the typical edge connector mounting on the multilayer board, when needed bandwidth exceeds ~20 GHz. With the bandwidth-improved multilayer board, the 3-dB bandwidth of the ROSA was observed to be >35.7 GHz and its receiver sensitivity was successfully measured to be <-10 dBm at FEC limit, bit error rate of 2.4e-4, for all channels.
KSP Keywords
100 Gb/s, 3-dB bandwidth, 4-level pulse amplitude modulation(PAM-4), Bandwidth limitation, Bit Error rate, Receiver Optical Sub-Assembly, multilayer board, passive optical alignment, receiver sensitivity
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(CC BY)
CC BY