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