ArticleScientific reports2016
Geometrical tuning art for entirely subwavelength grating waveguide based integrated photonics circuits.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 53 citations in OpenAlex.
- Design of Ultra-Compact and High-Efficiency Waveguide Bends on Lithium Niobate Thin Films.Nanomaterials (Basel, Switzerland) · 2026Article
- A point-of-care biosensor for rapid detection and differentiation of COVID-19 virus (SARS-CoV-2) and influenza virus using subwavelength grating micro-ring resonator.Applied physics reviews · 2023Article
- Fast, accurate, point-of-care COVID-19 pandemic diagnosis enabled through advanced lab-on-chip optical biosensors: Opportunities and challenges.Applied physics reviews · 2021Review
- Improving the detection limit for on-chip photonic sensors based on subwavelength grating racetrack resonators.Optics express · 2017Article
- Unique surface sensing property and enhanced sensitivity in microring resonator biosensors based on subwavelength grating waveguides.Optics express · 2016Article
- Subwavelength grating enabled on-chip ultra-compact optical true time delay line.Scientific reports · 2016Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Subwavelength grating (SWG) waveguide is an intriguing alternative to conventional optical waveguides due to the extra degree of freedom it offers in tuning a few important waveguide properties, such as dispersion and refractive index. Devices based on SWG waveguides have demonstrated impressive performances compared to conventional waveguides. However, the high loss of SWG waveguide bends jeopardizes their applications in integrated photonic circuits. In this work, we propose a geometrical tuning art, which realizes a pre-distorted refractive index profile in SWG waveguide bends. The pre-distorted refractive index profile can effectively reduce the mode mismatch and radiation loss simultaneously, thus significantly reduce the bend loss. This geometry tuning art has been numerically optimized and experimentally demonstrated in present study. Through such tuning, the average insertion loss of a 5 μm SWG waveguide bend is reduced drastically from 5.43 dB to 1.10 dB per 90° bend for quasi-TE polarization. In the future, the proposed scheme will be utilized to enhance performance of a wide range of SWG waveguide based photonics devices.
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