Pump-Phase-Noise-Free Wavelength Conversion and Multicast for High-Order QAM Signals

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06033
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Tokai University
• Principal Investigator: Lu Guo-Wei 東海大学, 創造科学技術研究機構, 准教授 (30599709)
• Co-Investigator(Kenkyū-buntansha): 坂本 高秀 国立研究開発法人情報通信研究機構, ネットワークシステム研究所ネットワーク基盤研究室, 主任研究員 (70392727) ; 千葉 明人 群馬大学, 大学院理工学府, 助教 (30435789)
• Research Collaborator: Sakamoto Takahide 国立研究開発法人情報通信研究機構, ネットワークシステム研究所ネットワーク基盤研究室, 主任研究員 (70392727) ; Chiba Akito 群馬大学, 大学院理工学府, 助教 (30435789)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: Four-wave mixing / Signal processing / Wavelength multicast / Wavelength conversion / Phase noise / Laser linewidth

Outline of Final Research Achievements

In the future transparent optical networks, wavelength conversion or multicast (WCM) plays an important role to enhance the flexibility of wavelength management and the non-blocking capacity. On the other hand, to meet the increasing bandwidth demands, high-order formats have been proposed and widely deployed in optical networks. Therefore, it is crucial to exploit WCM schemes with tolerance against phase noise, especially for phase-noise-sensitive high-order formats. We proposed coherent pumping in WCM to cancel the phase noise from pumps, which is suitable for high-order formats. We have successfully verified the feasibility of our scheme and experimentally demonstrated pump-phase-noise-free wavelength conversion, multicast and data exchange for high-order formats using coherent pumps. The results have been published in top-tier conference and journals in the field.

Free Research Field

Optical Communications