A photonic beamformer based on integrated optical delay line

Jingxian Liu; Minhui Long; Xin Zhong; Tao Zhou; Pengfei Qu; Yongchuan Xiao; Zhiyu Chen; Jianxiao Leng; Zhenhai Wu

doi:10.1117/12.2587489

12 March 2021 A photonic beamformer based on integrated optical delay line

Jingxian Liu, Minhui Long, Xin Zhong, Tao Zhou, Pengfei Qu, Yongchuan Xiao, Zhiyu Chen, Jianxiao Leng, Zhenhai Wu

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 117637V (2021) https://doi.org/10.1117/12.2587489
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

For the true time delay (TTD) of optical fiber changes with temperature, integrated optical chips are proposed to improve the delay consistency among channels. A 5-bit TTD chip is proposed in this paper. By using cascaded switches and optical waveguides, the chip is switchable and wavelength independent. A beamforming system operating at 6GHz is established for demonstration. 7 beam directions covering ±15° is obtained with proper mainside lobe ratio.

Citation Download Citation

Jingxian Liu, Minhui Long, Xin Zhong, Tao Zhou, Pengfei Qu, Yongchuan Xiao, Zhiyu Chen, Jianxiao Leng, and Zhenhai Wu "A photonic beamformer based on integrated optical delay line", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 117637V (12 March 2021); https://doi.org/10.1117/12.2587489

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