Journal
IEEE JOURNAL OF QUANTUM ELECTRONICS
Volume 58, Issue 2, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JQE.2022.3151114
Keywords
Mode division multiplexing link; silicon photonics; subwavelength grating
Categories
Funding
- National Natural Science Foundation of China [11904178, 12174199]
- Natural Science Foundation of Jiangsu Province [BK20180743]
- Nanjing University of Posts and Telecommunications (NUPT) Scientific Foundation (NUPTSF) [NY218108, NY219048]
- State Key Laboratory of Advanced Optical Communication Systems and Networks of Shanghai Jiao Tong University [2021GZKF002]
- Research and Practice Innovation Program of Jiangsu Province [KYCX21_0703]
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In this paper, an experimental demonstration of a subwavelength grating assisted on-chip silicon MDM-link is presented. The device utilizes MDM technology to increase communication capacity, and exhibits small size and good performance.
With the need for further increase in communication capacity, mode division multiplexing (MDM) technology has become a more promising technical approach. In this paper, we perform an experimental demonstration of a subwavelength grating assisted on-chip silicon MDM-link. The device is fabricated on the silicon-on-insulator with 220-nm thick silicon and a silica cladding. The length of the entire MDM-link is less than 100 mu m. The measured insertion loss and crosstalk at 1550 nm are lower than 2.6 dB and -25 dB, respectively. The entire crosstalk of the MDM-link is measured to be <-10 dB over a bandwidth of >55 nm. The fabrication tolerances are also experimentally investigated.
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