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On-chip reconfigura...
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Lu, LonghuiHuazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China.
(author)
On-chip reconfigurable mode converter based on cross-connected subwavelength Y-junctions
- Article/chapterEnglish2021
Publisher, publication year, extent ...
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The Optical Society,2021
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LIBRIS-ID:oai:DiVA.org:kth-289292
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-289292URI
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https://doi.org/10.1364/PRJ.402940DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20210126
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A novel power-efficient reconfigurable mode converter is proposed and experimentally demonstrated based on cross-connected symmetric Y-junctions assisted by thermo-optic phase shifters on a silicon-on-insulator platform. Instead of using conventional Y-junctions, subwavelength symmetric Y-junctions are utilized to enhance the mode splitting ability. The reconfigurable functionality can be realized by controlling the induced phase differences. Benefited from the cross-connected scheme, the number of heating electrodes can be effectively reduced, while the performance of the device is maintained. With only one-step etching, our fabricated device shows the average insertion losses and cross talks are less than 2.45 and -16.6 dB, respectively, measured with conversions between two arbitrary compositions of the first four TE modes over an observable 60 nm bandwidth. The converter is switchable and CMOS-compatible, and could be extended for more modes; hence, it can be potentially deployed for advanced and flexible mode multiplexing optical networks-on-chip.
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Liu, DemingHuazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China.
(author)
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Yan, MaxKTH,Fotonik(Swepub:kth)u1jenxfs
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Zhang, MinmingHuazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China.;Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China.
(author)
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Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China.Fotonik
(creator_code:org_t)
Related titles
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In:PHOTONICS RESEARCH: The Optical Society9:1, s. 43-482327-9125
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