DOI: https://doi.org/10.14710/jpa.v4i1.12495

Optimization of linear taper design of a silicon-slab waveguide

*Wildan Panji Tresna orcid  -  Research Center for Physics, National Research and Innovation Agency, Banten, Indonesia
Umar Ali Ahmad  -  Computer Engineering Department, School of Electrical Engineering, Telkom University, Bandung, Indonesia
Alexander William Setiawan Putra  -  3rd System Development Group, Division of Development of Vehicle Technology, Wada Engineering, Japan
Received: 14 Oct 2021; Revised: 24 Nov 2021; Accepted: 25 Nov 2021; Available online: 29 Nov 2021; Published: 30 Nov 2021.

Citation Format:
Abstract

A linear taper is applied on a slab waveguide to control the divergence angle of the light. In this research, the slab waveguide design consists of silicon (Si) and SiO2 as the core and the substrate, respectively. The tapered design is optimized by measuring of Full-Width Half Maximum (FWHM) of the light after propagation in a Finite Different Time Domain (FDTD). The simulation results show that the optimized taper design is obtained when its length LT and width WL are 125 µm and 10 µm, respectively. This value is the optimal length to get the small diffraction angle of light during propagation in the waveguide. Thus, the divergence angle of the input light of the slab waveguide can be minimized by using this structure. One purpose of this research is to develop a miniaturized optical technology that is like the size of a chip.

Fulltext View|Download
Keywords: Linear Taper, Slab Waveguide, FWHM

Article Metrics:

Article Info
Section: Articles
Language : EN
Recent articles
Clustering of seismicity in the Indonesian Region for the 2018-2020 Period using the DBSCAN Algorithm Layer deposition of titanium dioxide (TiO2) using DC-sputtering method with variation of deposition time: study of microstructure and coating hardness Characteristics of colloid silver solution based on changes in concentration and electric field using electrooptic equipment More recent articles
  1. R. N. Noyce, “Large-Scale Integration: What Is Yet to Come?,” Science, 195, 1102-1106, (1977)
  2. X. Zheng and A. V. Krishnamoorthy, “Si Photonics Technology for Future Optical Interconnection,” Asia Communications and Photonics Conference and Exhibition (ACP), 1-11, (2011)
  3. J. T. Boyd, R. W. Wu, D. E. Zelmon, A. Naumaan, H. A. Timlin, and H. E. Jackson, ”Guided wave optical structures utilizing silicon,” International Society for Optics and Photonics, 517, 1, 100–105, (1985)
  4. S. O. Kasap, “Optoelectronics and Photonics Principles and Practice,” (2001)
  5. H. Nishihara, M.Haruna, and T. Suhara, “Optical integrated circuits,” (2000)
  6. W. P. Tresna and T. Maruyama, “Propagation Loss on a Si-Slab Waveguide: Simulation revisited,” Journal of Physics and Its Applications, 2, 1, 76-78, (2019)
  7. W. P. Tresna, A.W. S. Putra, and T. Maruyama, “Optical-Loss Measurement of a Silicon-Slab Waveguide,” Current Optics and Photonics, 4, 6, 1-7, (2020)
  8. A. M. Scheggi, R. Falciai, and M. Brenci, “Radiation characteristics of tapered slab waveguides,” J. Opt. Soc. Am., 73, 119-121, (1983)
  9. S. Dwari, A. Chakraborty, and S. Sanyal, “Analysis of linear tapered waveguide by two approaches,” Prog. Electromagn. Res., 64, 219-238, (2006)
  10. P. Bienstman, S. Aseffa, S. G. Johnson, J. D. Joannopoulos, G. S. Petrich, and L. A. Kolodziejski, “Taper structures for coupling into photonic crystal slab waveguides,” J. Opt. Soc. Am. B, 20, 1817-1821, (2003)
  11. J. H. Karp, E. J. Tremblay, and J. E. Ford, “Planar microoptic solar concentrator,” Opt. Express, 18, 1122-1133, (2010)
  12. G. Ren, S. Chen, Y. Cheng, and Y. Zhai, “Study On Inverse Taper Based Mode Transformer For Low Loss Coupling Between Silicon Wire Waveguide And Lensed Fiber,” Optics Communications, 284, 4782–4788, (2011)
  13. S. Misawa, M. Aoki, S. Fujita, A. Takaura, T. Kihara, K. Yokomori, and H. Funato, “Focusing waveguide mirror with a tapered edge,” Appl. Opt., 33, 3365-3370, (1994)
  14. R. Rogozinski, “Planar gradient tapered waveguide in glass,” Opto-Electron. Rev., 9, 326-330, (2001)
  15. T. Saastamoinen, M. Kuittinen, P. Vahimaa, and J. Turunen, “Focusing of partially coherent light into planar waveguides,” Opt. Express, 12, 4511-4522, (2004)
  16. C. H. Henry, R. F. Kazarinov, H. J. Lee, K. J. Orlowsky, and L. E. Katz, “Low loss Si3N4-S102 optical waveguides on Si,” Appl. Opt., 26, 13, 2621-2624, (1987)

Last update:

No citation recorded.

Last update:

No citation recorded.