Journal
CHINESE OPTICS LETTERS
Volume 19, Issue 9, Pages -Publisher
OSA-OPTICAL SOC
DOI: 10.3788/COL202119.091301
Keywords
mode division multiplexing; photonic integration; few-mode fiber; optical transmission; optical interconnection
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Funding
- National Key R&D Program of China [2018YFB1801804]
- National Natural Science Foundation of China (NSFC) [61935011, 61875124, 61675128]
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This tutorial discusses the use of FMF for MDM to overcome the capacity bottleneck of optical communications, highlighting the importance and prospects of MDM in photonic integration and optical fiber transmission. It also addresses the research and application challenges of MDM in long-haul transmission and short reach interconnection.
To overcome the capacity crunch of optical communications based on the traditional single-mode fiber (SMF), different modes in a few-mode fiber (FMF) can be employed for mode division multiplexing (MDM). MDM can also be extended to photonic integration for obtaining improved density and efficiency, as well as interconnection capacity. Therefore, MDM becomes the most promising method for maintaining the trend of Moore's law in photonic integration and optical fiber transmission. In this tutorial, we provide a review of MDM works and cutting-edge progresses from photonic integration to optical fiber transmission, including our recent works of MDM low-noise amplification, FMF fiber design, MDM Si photonic devices, and so on. Research and application challenges of MDM for optical communications regarding long-haul trans-mission and short reach interconnection are discussed as well. The content is expected to be of important value for both academic researchers and industrial engineers during the development of next-generation optical communication systems, from photonic chips to fiber links.
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