Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/141860
Title: Integrated tunable mode filter for a mode-division multiplexing system
Authors: Sun, Chunlei
Wu, Wenhao
Yu, Yu
Zhang, Xinliang
Reed, Graham Trevor
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: Sun, C., Wu, W., Yu, Y., Zhang, X., & Reed, G. T. (2018). Integrated tunable mode filter for a mode-division multiplexing system. Optics letters, 43(15), 3658-3661. doi:10.1364/OL.43.003658
Journal: Optics letters
Abstract: Mode-division multiplexing (MDM) using multiple spatial modes as independent signals has been a promising technique to increase the communication capacity in conjunction with wavelength-division multiplexing (WDM). In MDM systems, mode filters are key components to filter out the undesired signals on specific mode. Analogous to a wavelength tunable filter used in a WDM system, here we propose and experimentally demonstrate a fundamental- or high-order-mode-pass tunable filter for a flexible MDM optical network based on a silicon platform. It consists of two switchable mode exchangers (MEs) and a fundamental-mode pass filter. By controlling the working state of the MEs, dynamic filtering and a tunable output can be achieved. This tunable mode filter exhibits a high extinction ratio of 18 dB and low insertion loss of 3 dB over the C-band. For further demonstration, the proposed device is tested using a modulated signal at 20 Gb/s. The eye diagrams and the bit error rates indicate a good filtering performance.
URI: https://hdl.handle.net/10356/141860
ISSN: 0146-9592
DOI: 10.1364/OL.43.003658
Rights: © 2018 Optical Society of America. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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