Study on optical phased arrays based on waveguide spaced cosine distribution

GUO Yaping; ZHAO Jiang; LI Bo

doi:10.7510/jgjs.issn.1001-3806.2019.01.020

LASER TECHNOLOGY > 2019 > 43(1): 98-102. > DOI: 10.7510/jgjs.issn.1001-3806.2019.01.020

GUO Yaping, ZHAO Jiang, LI Bo. Study on optical phased arrays based on waveguide spaced cosine distribution[J]. LASER TECHNOLOGY, 2019, 43(1): 98-102. DOI: 10.7510/jgjs.issn.1001-3806.2019.01.020

Citation:

GUO Yaping, ZHAO Jiang, LI Bo. Study on optical phased arrays based on waveguide spaced cosine distribution[J]. LASER TECHNOLOGY, 2019, 43(1): 98-102. DOI: 10.7510/jgjs.issn.1001-3806.2019.01.020

Citation:

GUO Yaping, ZHAO Jiang, LI Bo. Study on optical phased arrays based on waveguide spaced cosine distribution[J]. LASER TECHNOLOGY, 2019, 43(1): 98-102. DOI: 10.7510/jgjs.issn.1001-3806.2019.01.020

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Study on optical phased arrays based on waveguide spaced cosine distribution

1.
School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
2.
Faculty of Physics and Electronic Science, Hubei University, Wuhan 430062, China

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Received Date: March 06, 2018
Revised Date: April 10, 2018
Published Date: January 24, 2019

Graphical Abstract

Abstract

Abstract

In order to improve the precision and efficiency of sparse optical phased array, 1×16 optical phased array was designed based on silicon-on-insulator(SOI) platform by using the structure of spaced cosine distribution of output waveguides. Combining the effective refractive index method and 2-D finite difference beam propagation method, the far-field intensity distribution was simulated. The results show that, the side lobe suppression ratio decreases to 41.46% from 89.72%, and the full width at half maximum of the main lobe is compressed to 0.81° from 1.20°. This design method can significantly suppress the grating lobes and further compress the main lobe, and has a promising future in the field of beam deflection, such as robot obstacle avoidance, pilotless, target detection and so on.
- integrated optics,
- optical phased array,
- cosine distribution,
- far field intensity distribution,
- optical beam deflection

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References (21)

References

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