Ultracompact Silicon Waveguide Bends Designed Using a Particle Swarm Optimization Algorithm
In this study, the trajectory of a 90° bend is divided into two symmetric halves that are mirror images of each other as referenced to the symmetry axis at 45°, and each half is segmented into small curved sections. The bending radius and waveguide width for every section are p...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2021-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9290351/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849707765305442304 |
|---|---|
| author | Po-Han Fu Chen-Yu Chao Ding-Wei Huang |
| author_facet | Po-Han Fu Chen-Yu Chao Ding-Wei Huang |
| author_sort | Po-Han Fu |
| collection | DOAJ |
| description | In this study, the trajectory of a 90° bend is divided into two symmetric halves that are mirror images of each other as referenced to the symmetry axis at 45°, and each half is segmented into small curved sections. The bending radius and waveguide width for every section are parameters to be determined using a particle swarm optimization algorithm. The optimization is performed to maximize the transmission of the waveguide bends, which is calculated by using the three-dimensional finite-difference time-domain technique. The results indicate that the total bending loss of the optimized 90° bends with radii of 2, 3, 4, and 5 μm are 0.0106, 0.0051, 0.0025, and 0.0023 dB, respectively, at the wavelength λ = 1550 nm. In addition, the optimal devices are fabrication tolerant, with fabrication errors in width and height within 10 nm, and less wavelength-dependent compared with circular bends. |
| format | Article |
| id | doaj-art-e9ca6450e32046f481dee65e3958c446 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-e9ca6450e32046f481dee65e3958c4462025-08-20T03:15:50ZengIEEEIEEE Photonics Journal1943-06552021-01-011311910.1109/JPHOT.2020.30438289290351Ultracompact Silicon Waveguide Bends Designed Using a Particle Swarm Optimization AlgorithmPo-Han Fu0https://orcid.org/0000-0002-2473-8822Chen-Yu Chao1Ding-Wei Huang2https://orcid.org/0000-0001-5992-2139Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, TaiwanGraduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, TaiwanGraduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, TaiwanIn this study, the trajectory of a 90° bend is divided into two symmetric halves that are mirror images of each other as referenced to the symmetry axis at 45°, and each half is segmented into small curved sections. The bending radius and waveguide width for every section are parameters to be determined using a particle swarm optimization algorithm. The optimization is performed to maximize the transmission of the waveguide bends, which is calculated by using the three-dimensional finite-difference time-domain technique. The results indicate that the total bending loss of the optimized 90° bends with radii of 2, 3, 4, and 5 μm are 0.0106, 0.0051, 0.0025, and 0.0023 dB, respectively, at the wavelength λ = 1550 nm. In addition, the optimal devices are fabrication tolerant, with fabrication errors in width and height within 10 nm, and less wavelength-dependent compared with circular bends.https://ieeexplore.ieee.org/document/9290351/Bendsoptical lossparticle swarm optimizationradius of curvaturesilicon photonicswaveguides |
| spellingShingle | Po-Han Fu Chen-Yu Chao Ding-Wei Huang Ultracompact Silicon Waveguide Bends Designed Using a Particle Swarm Optimization Algorithm IEEE Photonics Journal Bends optical loss particle swarm optimization radius of curvature silicon photonics waveguides |
| title | Ultracompact Silicon Waveguide Bends Designed Using a Particle Swarm Optimization Algorithm |
| title_full | Ultracompact Silicon Waveguide Bends Designed Using a Particle Swarm Optimization Algorithm |
| title_fullStr | Ultracompact Silicon Waveguide Bends Designed Using a Particle Swarm Optimization Algorithm |
| title_full_unstemmed | Ultracompact Silicon Waveguide Bends Designed Using a Particle Swarm Optimization Algorithm |
| title_short | Ultracompact Silicon Waveguide Bends Designed Using a Particle Swarm Optimization Algorithm |
| title_sort | ultracompact silicon waveguide bends designed using a particle swarm optimization algorithm |
| topic | Bends optical loss particle swarm optimization radius of curvature silicon photonics waveguides |
| url | https://ieeexplore.ieee.org/document/9290351/ |
| work_keys_str_mv | AT pohanfu ultracompactsiliconwaveguidebendsdesignedusingaparticleswarmoptimizationalgorithm AT chenyuchao ultracompactsiliconwaveguidebendsdesignedusingaparticleswarmoptimizationalgorithm AT dingweihuang ultracompactsiliconwaveguidebendsdesignedusingaparticleswarmoptimizationalgorithm |