LP modes exchange based on multiplane light conversion  

作　　者：钟亚楠 林楚璇 方浚丞 雷霆 袁小聪 Yanan Zhong;Chuxuan Lin;Juncheng Fang;Ting Lei;Xiaocong Yuan(Nanophotonics Research Centre,Shenzhen Key Laboratory of Micro-Scale Optical Information Technology&Institute of Microscale Optoelectronics,Shenzhen University,Shenzhen 518060,China)

机构地区：[1]Nanophotonics Research Centre,Shenzhen Key Laboratory of Micro-Scale Optical Information Technology&Institute of Microscale Optoelectronics,Shenzhen University,Shenzhen 518060,China

出　　处：《Chinese Optics Letters》2024年第3期14-18,共5页中国光学快报（英文版）

基　　金：supported by the Guangdong Major Project of Basic Research(No.2020B0301030009);the National Natural Science Foundation of China(Nos.U23A20372,61935013,62105215,and 62275171);the Shenzhen Peacock Plan(No.KQTD20170330110444030);the Stable Support Project of Shenzhen(Nos.20220810152651001 and 20220811103827001);the Natural Science Foundation of GuangdongProvince(Nos.2020A1515011185and 2022A1515011642);Shenzhen University(No.2019075)。

摘　　要：Data exchange between different mode channels is essential in the optical communication network with mode-division multiplexing(MDM).However,there are challenges in realizing mode exchange with low insert loss,low mode crosstalk,and high integration.Here,we designed and fabricated a mode exchange device based on multiplane light conversion(MPLC),which supports the transmission of LP01,LP11a,LP11b,and LP21 modes in the C-band and L-band.The simulated exchanged mode purities are greater than 85%.The phase masks were fabricated on a silicon substrate to facilitate the integration with optical systems,with an insert loss of less than 2.2 dB and mode crosstalk below-21 dB due primarily to machining inaccuracies and alignment errors.We carried out an optical communication experiment with 10 Gbit/s OOK and QPSK data transmission at the wavelength of 1550 nm and obtained excellent performance with the device.It paves the way for flexible data exchange as a building block in MDM optical communication networks.

关 键 词：mode exchange mode-division multiplexing multiplane light conversion 

分 类 号：TN929.11[电子电信—通信与信息系统]