Presentation 2017-02-16
High-resolution measurement of differential mode delay of few-mode fiber using phase-comparing FMCW
Shingo Ohno, Daisuke Iida, Kunihiro Toge, Tetsuya Manabe,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Differential mode delay (DMD) is an important parameter to characterize mode division multiplexing transmission lines, and high-resolution DMD measurements are required for low-DMD lines. In the recent studies, the DMD has been measured with a high resolution by using a frequency-swept continuous wave (FMCW) interferometry. However, the FMCW method requires a wide band to sweep the optical frequency, resulting in the difficulty in the characterization of the transmission lines where the DMDs largely depend on the optical wavelength. In this paper, we propose a new method to measure the DMD with a high resolution and narrow band. We also describe the influence of mode coupling in the proposed method and demonstrate a mitigation of the influence.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Few-mode fiber / DMD / FMCW
Paper # OFT2016-47,OPE2016-163
Date of Issue 2017-02-09 (OFT, OPE)

Conference Information
Committee OCS / OFT / OPE
Conference Date 2017/2/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Osaka Prefecture University(I-site Nanba)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Akira Hirano(NTT) / Masayuki Shigematsu(Sumitomo Electric Industries) / Kensuke Ogawa(Fujikura)
Vice Chair Itsuro Morita(KDDI R&D Labs.) / / Kazutoshi Kato(Kyushu Univ.)
Secretary Itsuro Morita(NTT) / (Sumitomo Electric Industries) / Kazutoshi Kato(NTT)
Assistant / Terutake Kobayashi(Fujikura) / Ikutaro Ogushi(NTT) / Atsushi Aratake(NTT) / Katsumi Nakatsuhara(Kanagawa Inst. of Tech.)

Paper Information
Registration To Technical Committee on Optical Communication Systems / Technical Committee on Optical Fiber Technology / Technical Committee on OptoElectronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High-resolution measurement of differential mode delay of few-mode fiber using phase-comparing FMCW
Sub Title (in English)
Keyword(1) Few-mode fiber
Keyword(2) DMD
Keyword(3) FMCW
1st Author's Name Shingo Ohno
1st Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
2nd Author's Name Daisuke Iida
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
3rd Author's Name Kunihiro Toge
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
4th Author's Name Tetsuya Manabe
4th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
Date 2017-02-16
Paper # OFT2016-47,OPE2016-163
Volume (vol) vol.116
Number (no) OFT-456,OPE-457
Page pp.pp.15-18(OFT), pp.21-24(OPE),
#Pages 4
Date of Issue 2017-02-09 (OFT, OPE)