Fiber-chip link via mode division multiplexing
Applying mode division multiplexing techniques to a fiber-chip link would greatly increase its communication bandwidth. However, its implementation is difficult due to the huge higher-order mode mismatch between multimode-integrated waveguides and optical few-mode fibers (FMF). Here, we present an i...
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Published in | IEEE photonics technology letters Vol. 35; no. 19; p. 1 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
01.10.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | Applying mode division multiplexing techniques to a fiber-chip link would greatly increase its communication bandwidth. However, its implementation is difficult due to the huge higher-order mode mismatch between multimode-integrated waveguides and optical few-mode fibers (FMF). Here, we present an integrated coupler between the higher-order modes of a silicon waveguide and those of a FMF. Our device is capable of terabit-per-second bandwidth based on the multiplexing of 4 spatial modes. It relies on a multi-stage silicon taper combined with a 3D polymer waveguide, which convert and shape the modes for one-to-one mode coupling to the FMF. We demonstrate an average crosstalk of -7 dB to the closest mode and capability for up to 1.92 Tb/sec data transmission in the L-band via mode and wavelength division multiplexing. |
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ISSN: | 1041-1135 1941-0174 |
DOI: | 10.1109/LPT.2023.3298771 |