Journal
2022 PHOTONICS NORTH (PN)
Volume -, Issue -, Pages -Publisher
IEEE
DOI: 10.1109/PN56061.2022.9908329
Keywords
Silicon photonics; power splitter; Y-junction; subwavelength metamaterial; fabrication-tolerant; ultra-broadband
Categories
Funding
- Spanish Ministry of Science and Innovation (MICINN) [RTI2018-097957-B-C33, RED2018-102768-T, PID2020-115353RA-I00]
- Spanish State Research Agency (AEI) (MCIN/AEI)
- Community of Madrid -FEDER funds [S2018/NMT-4326]
- Horizon 2020 research and innovation program under Marie Sklodowska-Curie grant [734331]
- European Union -NextGenerationEU, through the Recovery, Transformation and Resilience Plan [IND2020/TIC-17510, DIN2020-011488]
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This article proposes an ultra-broadband and fabrication-tolerant symmetric Y-junction utilizing subwavelength metamaterials. Experimental results show that the TE0 excess loss remains below 0.3 dB over a bandwidth of 260 nm (1420-1680 nm), even in the presence of fabrication deviations of +/- 10 nm. Additionally, our power splitter exhibits excess loss lower than 1 dB for the TE1 mode within 1475-1575 nm.
We propose an ultra-broadband and fabrication-tolerant symmetric Y-junction leveraging subwavelength metamaterials. A comprehensive experimental study over a 260 nm bandwidth (1420- 1680 nm) shows TE0 excess loss below 0.3 dB. Low losses are maintained even in the presence of fabrication deviations of +/- 10 nm. Our power splitter also exhibits excess loss lower than 1 dB for the TE1 mode within 1475-1575 nm.
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