Numerical investigations of 2-D optical free-form couplers for surface connections of photonic integrated circuits
Two-dimensional (2-D) connections and couplers play a key role in the design of computational, highly compact integrated circuits and optical communication circuits. 2-D designs allow for very large-scale optical integration (VLSOI) within photonic chips. In this paper, optimized parabolic 2-D coupl...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-02-01
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| Series: | Results in Optics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950123000032 |
| _version_ | 1797904285070000128 |
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| author | Mohammad Mahdi Khakbaz Heshmati Farzin Emami |
| author_facet | Mohammad Mahdi Khakbaz Heshmati Farzin Emami |
| author_sort | Mohammad Mahdi Khakbaz Heshmati |
| collection | DOAJ |
| description | Two-dimensional (2-D) connections and couplers play a key role in the design of computational, highly compact integrated circuits and optical communication circuits. 2-D designs allow for very large-scale optical integration (VLSOI) within photonic chips. In this paper, optimized parabolic 2-D couplers are presented for 2-D or surface connection of two parts of a photonic integrated circuit (PIC). Dimensions and structure optimization has been done by Nelder-Mead method through several design parameters, simultaneously. In addition, the light waves propagation is simulated in the optimized designs for different cases via the Finite Element Method (FEM) and the transmittance diagrams are reported for different design cases. Investigation of coupling rate is shown about 90–95 % for coupling at a 90-degree angle for the wavelength range 800–920 nm and about 80–90 % for the light coupling to the other part of optical chip for the same wavelength range. By comparing the light coupling rate in these 2-D designs with the 3-D samples, it has been found that despite the reduction of dimensions, the light coupling performance is still acceptable. Also, the simulation of the design and the results related to the integration of these couplers are given. |
| first_indexed | 2024-04-10T09:46:28Z |
| format | Article |
| id | doaj.art-72bdb794ea424dfcb4b153228f901939 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-04-10T09:46:28Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-72bdb794ea424dfcb4b153228f9019392023-02-17T04:55:57ZengElsevierResults in Optics2666-95012023-02-0110100351Numerical investigations of 2-D optical free-form couplers for surface connections of photonic integrated circuitsMohammad Mahdi Khakbaz Heshmati0Farzin Emami1Department of Electrical and Electronic Engineering, Shiraz University of Technology, Shiraz, IranDepartment of Electrical and Electronic Engineering, Shiraz University of Technology, Shiraz, Iran; Visiting Academic Staff, Centre for Smart Power and Energy Research, School of Engineering, Deakin University, Australia; Corresponding author.Two-dimensional (2-D) connections and couplers play a key role in the design of computational, highly compact integrated circuits and optical communication circuits. 2-D designs allow for very large-scale optical integration (VLSOI) within photonic chips. In this paper, optimized parabolic 2-D couplers are presented for 2-D or surface connection of two parts of a photonic integrated circuit (PIC). Dimensions and structure optimization has been done by Nelder-Mead method through several design parameters, simultaneously. In addition, the light waves propagation is simulated in the optimized designs for different cases via the Finite Element Method (FEM) and the transmittance diagrams are reported for different design cases. Investigation of coupling rate is shown about 90–95 % for coupling at a 90-degree angle for the wavelength range 800–920 nm and about 80–90 % for the light coupling to the other part of optical chip for the same wavelength range. By comparing the light coupling rate in these 2-D designs with the 3-D samples, it has been found that despite the reduction of dimensions, the light coupling performance is still acceptable. Also, the simulation of the design and the results related to the integration of these couplers are given.http://www.sciencedirect.com/science/article/pii/S2666950123000032Photonic integrated circuits (PICs)Surface connectionVery large-scale optical integration (VLSOI)Coupling and connection |
| spellingShingle | Mohammad Mahdi Khakbaz Heshmati Farzin Emami Numerical investigations of 2-D optical free-form couplers for surface connections of photonic integrated circuits Results in Optics Photonic integrated circuits (PICs) Surface connection Very large-scale optical integration (VLSOI) Coupling and connection |
| title | Numerical investigations of 2-D optical free-form couplers for surface connections of photonic integrated circuits |
| title_full | Numerical investigations of 2-D optical free-form couplers for surface connections of photonic integrated circuits |
| title_fullStr | Numerical investigations of 2-D optical free-form couplers for surface connections of photonic integrated circuits |
| title_full_unstemmed | Numerical investigations of 2-D optical free-form couplers for surface connections of photonic integrated circuits |
| title_short | Numerical investigations of 2-D optical free-form couplers for surface connections of photonic integrated circuits |
| title_sort | numerical investigations of 2 d optical free form couplers for surface connections of photonic integrated circuits |
| topic | Photonic integrated circuits (PICs) Surface connection Very large-scale optical integration (VLSOI) Coupling and connection |
| url | http://www.sciencedirect.com/science/article/pii/S2666950123000032 |
| work_keys_str_mv | AT mohammadmahdikhakbazheshmati numericalinvestigationsof2dopticalfreeformcouplersforsurfaceconnectionsofphotonicintegratedcircuits AT farzinemami numericalinvestigationsof2dopticalfreeformcouplersforsurfaceconnectionsofphotonicintegratedcircuits |