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Design of small mode-dependent-loss scrambling-type mode (de) multiplexer based on PLC

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Title: Design of small mode-dependent-loss scrambling-type mode (de) multiplexer based on PLC
Authors: Shirata, Motoki Browse this author
Fujisawa, Takeshi Browse this author →KAKEN DB
Sakamoto, Taiji Browse this author
Matsui, Takashi Browse this author
Nakajima, Kazuhide Browse this author
Saitoh, Kunimasa Browse this author →KAKEN DB
Issue Date: 30-Mar-2020
Publisher: Optical Society of America
Journal Title: Optics express
Volume: 28
Issue: 7
Start Page: 9653
End Page: 9665
Publisher DOI: 10.1364/OE.387890
Abstract: A general design rule of scrambling-type mode (de)multiplexers (mode scramblers) based on silica planar lightwave circuit (PLC) with small mode-dependent-loss (MDL) is presented for a mode-division multiplexing (MDM) system. First, we consider four- and eight-mode scramblers and demonstrate that if the number of modes is 2(N), it is possible to construct small-MDL mode scramblers by using Y-branch waveguides and mode rotators. Next, a 6-mode scrambler, which can be used for four linearly polarized (LP) mode transmission in MDM system, is considered, and the MDL is large if Y-branch waveguides are cascaded simply, originating from the radiation loss of unwanted modes at the Y-branch. We propose a 2 + 4-type mode scrambler by combining 2- and 4-mode scramblers and demonstrate that it is possible to design a small MDL 6-mode scrambler. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Rights: ©2020 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
Type: article
URI: http://hdl.handle.net/2115/78128
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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