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9 October 2021 Bandwidth evaluation of 11 cm-long polymer waveguides based on optical sampling technique
Ying Shi, Bingxin Xu, Lin Ma, Junjie Xiong, Xinyu Fan, Yudi Zhuang, Zuyuan He
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Proceedings Volume 11901, Advanced Sensor Systems and Applications XI; 119010K (2021) https://doi.org/10.1117/12.2602688
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China
Abstract
We demonstrate direct time-domain bandwidth measurement of 11 cm-long multimode polymer waveguides based on an optical sampling technique for the first time. The pulse shape can be recovered after propagating waveguides due to the advantages of large bandwidth (low time resolution) of optical sampling technology. A reduction in averaged bandwidth (bandwidth-length product) from 241 GHz (27 GHz·m) to 180 GHz (20 GHz·m) of straight waveguides is observed when using mode scramblers to fully stimulate the higher-order modes. The effects such as bending and crossing structure of the waveguides on the bandwidth are also investigated. The proposed method is effective for measuring the bandwidth and dispersion of meter and centimeter-long waveguides, fibers and optical devices
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Ying Shi, Bingxin Xu, Lin Ma, Junjie Xiong, Xinyu Fan, Yudi Zhuang, and Zuyuan He "Bandwidth evaluation of 11 cm-long polymer waveguides based on optical sampling technique", Proc. SPIE 11901, Advanced Sensor Systems and Applications XI, 119010K (9 October 2021); https://doi.org/10.1117/12.2602688
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KEYWORDS
Waveguides
Polymers
Polymer multimode waveguides
Dispersion
Optical interconnects
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