Soliton Microcomb on Chip Integrated Si3N4 Microresonators with Power Amplification in Erbium-Doped Optical Mono-Core Fiber

Soliton microcombs, offering large mode spacing and broad bandwidth, have enabled a variety of advanced applications, particularly for telecommunications, photonic data center, and optical computation. Yet, the absolute power of microcombs remains insufficient, such that optical power amplification...

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Bibliographic Details
Published in:Micromachines (Basel) 2022-11, Vol.13 (12), p.2125
Main Authors: Chen, Xinpeng, Sun, Suwan, Ji, Weizhu, Ding, Xingxing, Gao, You, Liu, Tuo, Wen, Jianxiang, Guo, Hairun, Wang, Tingyun
Format: Article
Language:English
Subjects:
Amplification
Data centers
dispersion
Efficiency
Erbium
Lasers
optical amplification
Photonics
Silicon nitride
Solitary waves
soliton microcombs
Telecommunications
Wave division multiplexing
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Summary:Soliton microcombs, offering large mode spacing and broad bandwidth, have enabled a variety of advanced applications, particularly for telecommunications, photonic data center, and optical computation. Yet, the absolute power of microcombs remains insufficient, such that optical power amplification is always required. Here, we demonstrate a combined technique to access power-sufficient optical microcombs, with a photonic-integrated soliton microcomb and home-developed erbium-doped gain fiber. The soliton microcomb is generated in an integrated Si3N4 microresonator chip, which serves as a full-wave probing signal for power amplification. After the amplification, more than 40 comb modes, with 115-GHz spacing, reach the onset power level of >−10 dBm, which is readily available for parallel telecommunications , among other applications.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi13122125