Presentation 2017-10-27
Analyses of Receiver Sensitivity and Spectral Efficiency of Three-dimensional Optical Polarization Modulation/demodulation Schemes using Direct-detection-based Stokes-vector Receivers
Kazuro Kikuchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We can demodulate the multi-level polarization-modulation optical signal with Stokes-vector direct detection followed by digital signal processing. First, in this paper, we describe the principle of operation of the direct-detection-based Stokes-vector receiver. Next, this paper presents detailed analyses of the n-dimensional multi-level modulation scheme, where constellation points are placed on the cubic lattice in the n-dimensional vector space, and the bit-error rate and spectral efficiency of such scheme are discussed in a unified manner. We find that the multi-level polarization-modulation scheme, which has the cubic-lattice constellation in the three-dimensional Stokes space, can approach the Shannon limit of the spectral efficiency similarly to the coherent modulation/demodulation scheme even though direct-detection receivers are employed; this is the great advantage of the polarization-modulation scheme which cannot be attained by the conventional IMDD scheme. In addition, we compare the receiver sensitivity among three optical modulation schemes based on Stokes-vector direct detection, namely, the polarization-modulation scheme, coherent scheme, and dual-polarization IM scheme, and show that the the multi-level polarization-modulation scheme has the best receiver sensitivity.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optical fiber communications / Stokes vector / Polarization modulation / Multi-level modulation / Digital signal processing
Paper # OCS2017-48,OPE2017-80,LQE2017-53
Date of Issue 2017-10-19 (OCS, OPE, LQE)

Conference Information
Committee OCS / OPE / LQE
Conference Date 2017/10/26(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Josaien, Sakuranobaba
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Itsuro Morita(KDDI Research) / Kazutoshi Kato(Kyushu Univ.) / Tsuyoshi Yamamoto(Fujitsu Labs.)
Vice Chair / Kouki Sato(Furukawa Electric Industries) / Kiichi Hamamoto(Kyusyu Univ.)
Secretary (Sumitomo Electric Industries) / Kouki Sato(NTT) / Kiichi Hamamoto(NTT)
Assistant / Takuo Tanemura(Univ. of Tokyo) / Naokatsu Yamamoto(NICT) / Yasumasa Kawakita(Furukawa Electric Industries) / Naoki Fujiwara(NTT)

Paper Information
Registration To Technical Committee on Optical Communication Systems / Technical Committee on OptoElectronics / Technical Committee on Lasers and Quantum Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Analyses of Receiver Sensitivity and Spectral Efficiency of Three-dimensional Optical Polarization Modulation/demodulation Schemes using Direct-detection-based Stokes-vector Receivers
Sub Title (in English)
Keyword(1) Optical fiber communications
Keyword(2) Stokes vector
Keyword(3) Polarization modulation
Keyword(4) Multi-level modulation
Keyword(5) Digital signal processing
1st Author's Name Kazuro Kikuchi
1st Author's Affiliation National Institution for Academic Degrees and Quality Enhancement of Higher Education(NIAD-QE)
Date 2017-10-27
Paper # OCS2017-48,OPE2017-80,LQE2017-53
Volume (vol) vol.117
Number (no) OCS-263,OPE-264,LQE-265
Page pp.pp.61-66(OCS), pp.61-66(OPE), pp.61-66(LQE),
#Pages 6
Date of Issue 2017-10-19 (OCS, OPE, LQE)