Silicon reconfigurable mode-selective modulation for on-chip mode-multiplexed photonic systems

Recently, optical mode-division multiplexing has drawn a lot of attention due to its ability to increase the optical communication capacity in one physical channel with a single wavelength carrier. In this Letter, we demonstrate reconfigurable mode-selective modulation which is potentially useful fo...

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Bibliographic Details
Published in:Optics letters 2021-03, Vol.46 (5), p.1145-1148
Main Authors: Zhou, Gangqiang, Guo, Yuyao, Lu, Liangjun, Chen, Jianping, Zhou, Linjie
Format: Article
Language:English
Subjects:
Mach-Zehnder interferometers
Modulation
Multiplexers
Multiplexing
On-Off Keying
Optical communication
Photonics
Reconfiguration
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Summary:Recently, optical mode-division multiplexing has drawn a lot of attention due to its ability to increase the optical communication capacity in one physical channel with a single wavelength carrier. In this Letter, we demonstrate reconfigurable mode-selective modulation which is potentially useful for on-chip mode-multiplexed photonic systems. The device consists of two mode exchangers and one mode modulator. The mode exchanger is based on a Mach-Zehnder interferometer that performs mode exchange between and modes. The mode modulator consists of a pair of 1×3/3×1 multimode interferometers acting as a mode (de)multiplexer. It only selectively modulates the mode while bypassing the mode. 32 Gb/s on-off keying (OOK) modulation is successfully demonstrated for both input and modes. This device can be used as a building block for on-chip multimode interconnect networks.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.413865