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On-chip reconfigura...
On-chip reconfigurable mode converter based on cross-connected subwavelength Y-junctions
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- Lu, Longhui (författare)
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
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- Liu, Deming (författare)
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China
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- Yan, Max (författare)
- Department of Applied Physics, KTH Royal Institute of Technology, Stockholm, Sweden
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- Zhang, Minming (författare)
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China; Wuhan National Laboratory for Optoelectronics, Wuhan, China
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(creator_code:org_t)
- 2020-12-23
- 2020
- Engelska.
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Ingår i: Photonics Research. - : Optical Society of America. - 2327-9125. ; 9:1, s. 43-48
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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−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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
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- art (ämneskategori)
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