Special Optical IQ Modulator

2012 Fiscal Year Final Research Report

• Project/Area Number: 23760352
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Communication/Network engineering
• Research Institution: National Institute of Information and Communications Technology
• Principal Investigator: GUO-WEI Lu 独立行政法人情報通信研究機構, 光ネットワーク研究所光通信基盤研究室, 研究員 (30599709)
• Project Period (FY): 2011 – 2012
• Keywords: 情報通信工学 / コヒーレント光通信 / 多値光変調 / 集積光変調器

Research Abstract

In this project, we proposed a special in-phase/quadrature (IQ) modulator. Through the collaboration with Sumitomo Osaka Cement (SOC), the special IQ modulator was successfully fabricated. Based on this special IQ modulator, we proposed and experimentally demonstrated several schemes for generating advanced optical modulation formats, including: (1) optical 8PSK transmitter based on rectangular QPSK; (2) flexible 8-ary transmitter for generating 8PSK and 8QAM; (3) flexible high-order QAM transmitter for synthesizing 16QAM, 32(36)QAM, and 64QAM. We have published 10 refereed international conference papers, including top-tier conferences like OFC and CLEO, and 2 refereed papers in top-tier international journals (OSA Optics Express).

Research Products

• [Journal Article] Flexible high-order QAM transmitter using tandem IQ modulators for generating 16/32/36/64-QAM with balanced complexity in electronics and optics (2013)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, and Tetsuya Kawanishi
  • Journal Title: Opt. Express Volume: 21 Pages: 6213-6223
  • DOI: DOI:10.1364/OE.21.006213
  • Peer Reviewed
• [Journal Article] Rectangular QPSK for generation of optical eight-ary phase-shift keying (2011)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Journal Title: Opt. Express Volume: 19 Pages: 18479-18485
  • DOI: DOI:10.1364/OE.19.018479
  • Peer Reviewed
• [Presentation] Wavelength Conversion of 36QAM through Four-Wave Mixing in HNLF (2013)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: the 10th Conference on Lasers and Electro-Optics Pacific Rim, and the 18th OptoElectronics and Communications Conference / Photonics in Switching (CLEO-PR&OECC/PS 2013)
  • Place of Presentation: Kyoto International Conference Center, Kyoto, Japan(paper MO1-2, in Proc.)
  • Year and Date: 20130630-0704
• [Presentation] Generation of Optical 32QAM using Two Tandem IQ Modulators with Simplified Electronics (2013)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: Conference on Lasers and Electro-Optics (CLEO 2013)
  • Place of Presentation: San Jose Convention Center, San Jose, USA(paper CM1G.1, in Proc.)
  • Year and Date: 20130609-14
• [Presentation] Optical 36QAM Transmitter based on Two Tandem IQ Modulators with Simplified Driving Electronics (2013)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: CLEO/Europe-IQEC
  • Place of Presentation: ICM Centre, Munich, Germany(paper CI-1.3, in Proc.)
  • Year and Date: 20130512-16
• [Presentation] Optical 64QAM Transmitter using Tandem IQ Modulators with Balanced Complexity in Electronics and Optics (2013)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: Optical Fiber Communication Conference and Exposition (OFC)
  • Place of Presentation: Anaheim Convention Center, Anaheim, USA(paper OM3C.2,in Proc.)
  • Year and Date: 20130317-21
• [Presentation] PS-QPSK with Duobinary-Shaping and MLSD Reception for Constructing Power- and Spectrum-Efficient Superchannel (2013)
  • Author(s): Guo-Wei Lu, Yukiyoshi Kamio, Tetsuya Kawanishi
  • Organizer: Optical Fiber Communication Conference and Exposition (OFC)
  • Place of Presentation: Anaheim Convention Center, Anaheim, USA(paper OTu3B.5, in Proc.)
  • Year and Date: 20130317-21
• [Presentation] Experiment Investigation of Nonlinear Distortion in QAM Constellation due to Imbalance in Intradyne Coherent Receiver (2012)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: 17th OptoElectronics and Communications Conference (OECC 2012)
  • Place of Presentation: BEXO, Busan, Korea
  • Year and Date: 20120702-06
• [Presentation] Reconfigurable optical 8-ary transmitter based on arbitrary 2-QAM for generating 8PSK and 8QAM (2012)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: Optical Fiber Communication Conference and Exposition (OFC)
  • Place of Presentation: Los Angeles Convention Center, Los Angeles, USA(paper JTh2A.22, in Proc.)
  • Year and Date: 20120304-08
• [Presentation] Two optical-8PSK transmitter schemes based on tandem IQ modulators (2011)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: International Quantum Electronics Conference / Conference on Lasers and Electro-Optics Pacific Rim (IQEC/CLEO PR) 2011
  • Place of Presentation: Sydney Convention and Exhibition Center, Australia(paper 762.00, in Proc.)
  • Year and Date: 20110828-0901
• [Presentation] Generation of optical 8PSK using cascaded IQ modulators and binary Electronics (2011)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: OptoElectronics Communications Conference (OECC)
  • Place of Presentation: The Splendor Kaohsiung, Kaohsiung, Taiwan(paper 7B4_5, in Proc.)
  • Year and Date: 20110704-08
• [Presentation] Optical 8PSK Transmitter using Tandem IQ Modulators with Binary Driving Electrical Signals (2011)
  • Author(s): Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
  • Organizer: Conference on Lasers and Electro-Optics (CLEO)
  • Place of Presentation: Baltimore Convention Center, Baltimore, Maryland, USA(paper CThH5,in Proc.)
  • Year and Date: 20110503-05