Journal
APPLIED SCIENCES-BASEL
Volume 9, Issue 20, Pages -Publisher
MDPI
DOI: 10.3390/app9204239
Keywords
integrated beam splitter; silicon photonics; tailorable power splitting ratio
Categories
Funding
- National Research Foundation of Korea [NRF-2017R1C1B2011113]
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Featured Application Silicon photonics, Quantum integrated photonic circuits, Photonic integrated circuits. Abstract An on-chip optical power splitter is a key component of photonic signal processing and quantum integrated circuits and requires compactness, wideband, low insertion loss, and variable splitting ratio. However, designing an on-chip splitter with both customizable splitting ratio and wavelength independence is a big challenge. Here, we propose a tailorable and broadband optical power splitter over 100 nm with low insertion loss less than 0.3%, as well as a compact footprint, based on 1x2 interleaved tapered waveguides. The proposed scheme can design the output power ratio of transverse electric modes, lithographically, and a selection equation of a power splitting ratio is extracted to obtain the desired power ratio. Our splitter scheme is close to an impeccable on-chip optical power splitter for classical and quantum integrated photonic circuits.
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