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http://hdl.handle.net/10397/78908
Title: | Optofluidic planar optical cross-connect using nematic liquid-crystal waveguides | Authors: | Li, T Chen, Q Zhang, X |
Issue Date: | Aug-2018 | Source: | IEEE photonics journal, Aug. 2018, v. 10, no. 4, 6601417 | Abstract: | This paper proposes a compact planar optofluidic optical cross-connect (OXC) switch based on electro-optic (EO) waveguides in nematic liquid crystal (NLC). In the crossbar fabric, each unit cell of the proposed device consists of two portions: the NLC EO waveguides for 1 x 2 switching and the fixed NLC-core waveguides to support subsequent beam paths of the lead-in/lead-out process or the bending process. With numerical simulations, a sample design of 8 x 8 OXC is analyzed and optimized, which provides the predicted broadband performance as approximately 8.0 dB maximum on-chip insertion loss, -45.9 dB cross-talk and 16 ms switching time in the footprint of 2 mm x 2 mm. The loss reduction and the switching speed-up issues are also discussed, with the expected 5.5 dB maximum on-chip insertion loss and 1 ms switching time. The proposed OXC switch is new in the working principle using both electric-field reconfigurable NLC waveguides and fixed NLC-core waveguides, and can leverage the liquid-crystal on silicon fabrication. It is potential for optical circuit switching in the small-scale data centers, or protection switching in optical communication networks. | Keywords: | Liquid-crystal devices Optical switching Integrated photonics |
Publisher: | Institute of Electrical and Electronics Engineers | Journal: | IEEE photonics journal | EISSN: | 1943-0655 | DOI: | 10.1109/JPHOT.2018.2853759 | Rights: | © 2018 IEEE. Translations and content mining are permitted for academic research only.
Personal use is also permitted, but republication/redistribution requires IEEE permission.
See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. Posted with Permission from the publisher. The following publication T. Li, Q. Chen and X. Zhang, "Optofluidic Planar Optical Cross-Connect Using Nematic Liquid-Crystal Waveguides," in IEEE Photonics Journal, vol. 10, no. 4, pp. 1-17, Aug. 2018, Art no. 6601417 is available at https://dx.doi.org/10.1109/JPHOT.2018.2853759 |
Appears in Collections: | Journal/Magazine Article |
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Li_Optofluidic_Planar_Nematic.pdf | 1.42 MB | Adobe PDF | View/Open |
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