Novel encoder/decoder using subsampled Bragg grating for a WDM-compatible OCDMA system

被引：10

作者：

Pu, Tao ^{[1
]}

Zhu, Yingxun ^{[1
]}

Chen, Peng ^{[1
]}

Chen, Xiangfei ^{[2
]}

Lu, Lin ^{[1
]}

Wang, Rong ^{[1
]}

Li, Yuquan ^{[1
]}

Zheng, Jilin ^{[1
]}

机构：

[1] Inst Commun Engn, Photon Informat Technol Lab, Nanjing 210007, Peoples R China

[2] Nanjing Univ, Natl Key Lab Microstruct, Microwave Photon Technol Lab, Nanjing 210093, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2007年 / 19卷 / 21-24期

基金：

中国国家自然科学基金;

关键词：

optical code-division multiple-access (OCDMA); sampled Bragg grating; wavelength-division multiplexing (WDM);

D O I：

10.1109/LPT.2007.906843

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Optical code-division multiple-access (OCDMA) technology is attractive for optical broadband access network. It is very interesting to use the super-structure fiber-Bragg-grating-based en/decoders to construct a wavelength-division-multiplexing (WDM)-compatible OCDMA system. Based on the equivalent phase-shift technique, we have proposed a subsampled-Bragg-grating (S-SBG)-based en/decoder. Based on the proposed method, only a single uniform phase mask can be used to accommodate different WDM channels with relevant central wavelengths and spectrum width. Using the S-SBG-based en/decoder, we can make different WDM channels have similar as well as better encoding efficiency and correlation performance. S-SBG-based en/decoders with 127 chips for two different wavelength channels are fabricated and measured. The experiments indicate the advantages revealed by the theoretical simulation.

引用

页码：1807 / 1809

页数：3

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