Bayesian design of mosaic-based mode multiplexers for various wavelength bands.
Opt Express
; 31(16): 26842-26853, 2023 Jul 31.
Article
em En
| MEDLINE
| ID: mdl-37710534
ABSTRACT
Ultracompact mode multiplexers based on mosaic structure for various wavelength bands designed by Bayesian technique are investigated. C-, O-, and C + O band, TE0-TE1 2-mode multiplexers can be designed with the same footprint, by only changing the mosaic-pattern, showing the great flexibility of mosaic-based devices. Bayesian direct binary search method is used for the design, and it is demonstrated that the Bayesian technique is superior to conventional design method in terms of the best-structure search for the same number of iterations. The designed devices are fabricated for Si-waveguide platform, and the proof-of-concept results are obtained. These results indicate that the mosaic-based devices are promising candidates for future compact optical transceivers.
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MEDLINE
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2023
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Article