标题:Highly Efficient Optical Beam Steering Using an In-Fiber Diffraction Grating for Full Duplex Indoor Optical Wireless Communication
作者:Wang, Guoqing; Habib, Usman; Yan, Zhijun; Gomes, Nathan J.; Sui, Qingmei; Wang, Jun-Bo; Zhang, Lin; Wang, Chao
通讯作者:Wang, C;Wang, Chao
作者机构:[Wang, Guoqing; Habib, Usman; Gomes, Nathan J.; Wang, Jun-Bo; Wang, Chao] Univ Kent, Sch Engn & Digital Arts, Canterbury CT2 7NT, Kent, England.; [Y 更多
会议名称:International Topical Meeting on Microwave Photonics (MWP)
会议日期:OCT 23-26, 2017
来源:JOURNAL OF LIGHTWAVE TECHNOLOGY
出版年:2018
卷:36
期:19
页码:4618-4625
DOI:10.1109/JLT.2018.2832200
关键词:Beam steering; microwave photonics; optical diffraction; optical; wireless communication; tilted fiber gratings
摘要:Diffraction gratings have been widely used in wavelength-controlled nonmechanical laser beam steering for high data-rate indoor optical wireless communications. Existing free-space diffraction gratings suffer from inherent difficulties of limited diffraction efficiency, bulky configuration, high cost, and significant coupling loss with optical fiber links. In this paper, a new optical approach for highly efficient, compact, and fiber compatible laser beam steering using an in-fiber diffraction grating is proposed and experimentally demonstrated for the first time to our best knowledge. In-fiber diffraction is made possible based on a 45 degrees tilted fiber grating (TFG), where wavelength-dependent lateral scattering is obtained due to the strongly tilted grating structure. Improved diffraction efficiency of 93.5% has been achieved. In addition, the 45 degrees TFG works perfectly for both light emission and reception, enabling full-duplex optical wireless transmission. Utility of the 45 degrees TFG in all-fiber laser beam steering for multiuser full duplex optical wireless communications has been verified in experiments. About 1.4 m free-space full-duplex wireless transmission has been demonstrated with data rate up to 12 Gb/s per beam using 2.4 GHz bandwidth OFDM signals.
收录类别:CPCI-S;EI;SCOPUS;SCIE
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85046367505&doi=10.1109%2fJLT.2018.2832200&partnerID=40&md5=1af6f213e61656a718ab34db8908aa87
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