Reconfiguring computer-generated holographic coding patterns to enhance optical access network security

Jen-Fa Huan, Chun Chieh Liu, Chao Chin Yang, Chung Hao Li

研究成果: Conference contribution

摘要

In this paper, spatial light modulators (SLMs) are devised as a reconfigurable optical coding access device with computer-generated hologram (CGH) coding patterns scrambled over them for secure optical data communications. SLM is composed of many pixels arranged in an array which can be controlled by electrically triggered pulses to generate different coding patterns. By using SLMs we can modulate users’ data signal with different CGH pattern array to prevent from deciphering of eavesdropper. According to the transmitted holographic information from transmitter encoder to receiver decoder, symmetrical balanced decoders can be configured (and reconfigured) to recover coded data bit of each network user by correlating the received combined hologram patterns with the desired CGH pattern over photo-detector. In the proposed system, each user encodes the transmitted data bit with signature maximal-length sequence (M-sequence) code which are further mapped onto a CGH coding pattern. Due to the pseudo-orthogonal and reconfigurable characteristics of M-sequence codes, eavesdropper will suffer more difficulty in deciphering received data signal. On system analyses, as competing with arrayed-waveguide gratings (AWGs) devices, we conclude that the approach of CGH pattern array can largely improve network security performance for its characteristic advantages of larger capacity, more flexibility, higher confidentiality and easier implementation.

原文English
主出版物標題Proceedings of the Future Technologies Conference (FTC) 2018 - Volume 2
編輯Supriya Kapoor, Kohei Arai, Rahul Bhatia
發行者Springer Verlag
頁面733-742
頁數10
ISBN(列印)9783030026820
DOIs
出版狀態Published - 2019 1月 1
事件Future Technologies Conference, FTC 2018 - Vancouver, BC, Canada
持續時間: 2018 11月 152018 11月 16

出版系列

名字Advances in Intelligent Systems and Computing
881
ISSN(列印)2194-5357

Other

OtherFuture Technologies Conference, FTC 2018
國家/地區Canada
城市Vancouver, BC
期間18-11-1518-11-16

All Science Journal Classification (ASJC) codes

  • 控制與系統工程
  • 一般電腦科學

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