Presentation 2018-10-19
Mode Crosstalk Analysis for Active-MMI Mode-Selective Light Source
Tomotaka Mori, Bingzhou Hong, Haisong Jiang, Kiichi Hamamoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Due to recent advancing of AI and big data, interconnection of supercomputer may exceed transmission capacity over Tbps in the near future. In order to achieve transmission capacity over Tbps, optical interconnection techniques are widely researched. Technological history tells us that, not only supercomputer, small IT devices will require such techniques following supercomputer after a few decades. To realize optical interconnection in small IT devices with over Tbps, mode selective light source is one candidate to be integrated for the optical interconnection. We have demonstrated active-MMI mode selective light source. It features; 1) a few space modes selectively, 2) high frequency response (more than 100 GHz is expected at least). Therefore, high frequency response with the combination of mode multiplexing may enables transmission capacity over 100 Gbps. So far, we have demonstrated 0th and 1st mode selective oscillation with actually implemented devices. We have confirmed the fundamental performance of it by monitoring near field patterns, however, mode crosstalk in detail has not been investigated nor evaluated. In this paper, we propose mode crosstalk analysis method by analyzing far field patterns. Output far field pattern of mode selective light source is separated to 0th and 1st mode mathematically. As a result, evaluation results of -10.3 dB for 0th mode selected, and -13.0 dB for 1st mode selected conditions, respectively, were achieved for the first time.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Active MMI-LD / Mode-Selective Light Source / Mode Crosstalk
Paper # OCS2018-43,OPE2018-79,LQE2018-68
Date of Issue 2018-10-11 (OCS, OPE, LQE)

Conference Information
Committee OPE / LQE / OCS
Conference Date 2018/10/18(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
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Topics (in English)
Chair Kouki Sato(Furukawa Electric Industries) / Kiichi Hamamoto(Kyusyu Univ.) / Itsuro Morita(KDDI Research)
Vice Chair Hiroshi Takahashi(Sophia Univ.) / Hiroshi Aruga(Mitsubishi Electric)
Secretary Hiroshi Takahashi(Univ. of Tokyo) / Hiroshi Aruga(NICT) / (SEI)
Assistant Yuya Shoji(Tokyo Inst. of Tech.) / Kazunori Seno(NTT) / Masaya Nagai(Osaka Univ.)

Paper Information
Registration To Technical Committee on OptoElectronics / Technical Committee on Lasers and Quantum Electronics / Technical Committee on Optical Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Mode Crosstalk Analysis for Active-MMI Mode-Selective Light Source
Sub Title (in English)
Keyword(1) Active MMI-LD
Keyword(2) Mode-Selective Light Source
Keyword(3) Mode Crosstalk
1st Author's Name Tomotaka Mori
1st Author's Affiliation Kyushu University(Kyushu Univ.)
2nd Author's Name Bingzhou Hong
2nd Author's Affiliation Kyushu University(Kyushu Univ.)
3rd Author's Name Haisong Jiang
3rd Author's Affiliation Kyushu University(Kyushu Univ.)
4th Author's Name Kiichi Hamamoto
4th Author's Affiliation Kyushu University(Kyushu Univ.)
Date 2018-10-19
Paper # OCS2018-43,OPE2018-79,LQE2018-68
Volume (vol) vol.118
Number (no) OCS-251,OPE-252,LQE-253
Page pp.pp.81-86(OCS), pp.81-86(OPE), pp.81-86(LQE),
#Pages 6
Date of Issue 2018-10-11 (OCS, OPE, LQE)