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Six-mode scrambler based on cascaded side-wall grating waveguides

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Title: Six-mode scrambler based on cascaded side-wall grating waveguides
Authors: Fujisawa, Takeshi Browse this author →KAKEN DB
Sakamoto, Taiji Browse this author
Miyata, Masashi Browse this author
Matsui, Takashi Browse this author
Hashimoto, Toshikazu Browse this author
Kasahara, Ryoichi Browse this author
Mori, Takayoshi Browse this author
Imada, Ryota Browse this author
Nakajima, Kazuhide Browse this author
Saitoh, Kunimasa Browse this author →KAKEN DB
Keywords: planar lightwave circuit
mode-division multiplexing
mode converting device
Issue Date: 18-May-2021
Publisher: IOP Publishing
Journal Title: Japanese Journal of Applied Physics (JJAP)
Volume: 60
Issue: 6
Start Page: 062002
Publisher DOI: 10.35848/1347-4065/abfa31
Abstract: A six-mode scrambler based on cascaded side-wall long-period-grating waveguides on a silica planar lightwave circuit (PLC) platform is proposed for mode-division-multiplexing (MDM) transmission. The device can be fabricated with only one-step etching since it does not use a surface grating. A mode-dependent loss (MDL) of the system is estimated and the MDL can be reduced with a multiple scrambling operation. Two gratings proposed here and a fiber-pigtailed module containing these gratings are fabricated and the expected proof-of-concept mode scrambling operation is confirmed. It is found that the connection between few-mode fiber (FMF) and PLC chip seems to be the dominant loss of the module. Considering these losses, the measured results are in good agreement with the calculated results.
Rights: © 2021 The Japan Society of Applied Physics
Type: article (author version)
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)

Submitter: 藤澤 剛

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