Laser-phased-array beam steering based on crystal fiber

Deng-cai Yang; Si-si Zhao; Da-yong Wang; Zhi-yong Wang; Xiao-fei Zhang

doi:10.1117/12.901060

22 August 2011 Laser-phased-array beam steering based on crystal fiber

Deng-cai Yang, Si-si Zhao, Da-yong Wang, Zhi-yong Wang, Xiao-fei Zhang

Proceedings Volume 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging; 819241 (2011) https://doi.org/10.1117/12.901060
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Laser-phased-array system provides an elegant means for achieving the inertial-free, high-resolution, rapid and random beam steering. In laser-phased-array system, phase controlling is the most important factor that impacts the system performance. A novel scheme is provided in this paper, the beam steering is accomplished by using crystal fiber array, the difference length between adjacent fiber is fixed. The phase difference between adjacent fiber decides the direction of the output beam. When the wavelength of the input fiber laser is tuned, the phase difference between the adjacent elements has changed. Therefore, the laser beam direction has changed and the beam steering has been accomplished. In this article, based on the proposed scheme, the steering angle of the laser beam is calculated and analyzed theoretically. Moreover, the far-field steering beam quality is discussed.

Citation Download Citation

Deng-cai Yang, Si-si Zhao, Da-yong Wang, Zhi-yong Wang, and Xiao-fei Zhang "Laser-phased-array beam steering based on crystal fiber", Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 819241 (22 August 2011); https://doi.org/10.1117/12.901060

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