Y. Fujihara, Asahi Sueyoshi, Alisson Rodrigues de Paula, A. Maruta, K. Mishina
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引用次数: 0
Abstract
SUMMARY Quadrature phase-shift keying (QPSK) and 16-quadrature amplitude modulation (16QAM) formats are deployed in inter-data center networks where high transmission capacity and spectral efficiency are required. However, in intra-data center networks, a four-level pulse amplitude modulation(PAM4)formatisdeployedtosatisfytherequirementsforasim-pleandlow-costtransceiverconfiguration.Fortheseamlessandeffective connectionofsuchheterogeneousnetworkswithoutanoptical–electrical– opticalconversion, anall-opticalmodulationformatconversiontechniqueis required. In this paper, we propose all-optical PAM4 to QPSK and 16QAM modulation format conversions using silicon-rich nitride waveguides. The successful conversions from 50-Gbps-class PAM4 signals to 50-Gbps-class QPSK and 100-Gbps-class 16QAM signals are demonstrated via numerical simulations.
期刊介绍:
The IEICE Transactions on Communications is an all-electronic journal published occasionally by the Institute of Electronics, Information and Communication Engineers (IEICE) and edited by the Communications Society in IEICE. The IEICE Transactions on Communications publishes original, peer-reviewed papers that embrace the entire field of communications, including:
- Fundamental Theories for Communications
- Energy in Electronics Communications
- Transmission Systems and Transmission Equipment for Communications
- Optical Fiber for Communications
- Fiber-Optic Transmission for Communications
- Network System
- Network
- Internet
- Network Management/Operation
- Antennas and Propagation
- Electromagnetic Compatibility (EMC)
- Wireless Communication Technologies
- Terrestrial Wireless Communication/Broadcasting Technologies
- Satellite Communications
- Sensing
- Navigation, Guidance and Control Systems
- Space Utilization Systems for Communications
- Multimedia Systems for Communication