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Proceedings Paper

Automated design and optimization scheme of optical antenna for silicon photonic integrated circuit
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Paper Abstract

Optical antennas are essential components for integrated photonic circuits (PICs) as they allow the effective coupling of light into/from free space with large optical aperture and therefore small divergence angle. Such a function is especially vital in sensing applications such as LIDAR and Doppler velocimetry where the interaction with free space objects is required. However, the design of a linear grating optical antenna is not a trivial task, as the radiation intensity and angle need to be optimized along the antenna length to achieve the desired radiation pattern. In this work, we proposed and realized an automated design scheme for silicon PIC antennas. Utilizing such a scheme, an optical antenna array with 128 μm by 500 μm optical aperture has been designed and fabricated with 0.18 μm fabrication technology. The antenna has been characterized for its divergence angle and radiation pattern. The obtained data match well with design parameters, showing the viability of such an automated design scheme.

Paper Details

Date Published: 12 March 2020
PDF: 6 pages
Proc. SPIE 11440, 2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices, 1144008 (12 March 2020); doi: 10.1117/12.2542493
Show Author Affiliations
Fusheng Zhao, Institute of Microelectronics (China)
Bin Wang, Institute of Microelectronics (China)
Shuo Wang, Institute of Microelectronics (China)
Tianfei Hou, Institute of Microelectronics (China)
Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 11440:
2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices
Baojun Li; Xingjun Wang; Ya Sha Yi, Editor(s)

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