Chinese Optics Letters, Volume. 21, Issue 6, (2023)

Optical scrambler using WGM micro bottle cavity [Early Posting]

Chang Pengfa, Wang Chen, Jiang Tao, Wang Longsheng, Zhao Tong, Gao Hua, Jia Zhiwei, Guo Yuanyuan, Wang Yuncai, Wang Anbang
Author Affiliations
  • Taiyuan University of Technology
  • China
  • Key Lab of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology
  • Guangdong University of Technology
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    An optical scrambler using a whispering-gallery-mode micro bottle cavity is proposed to scramble a complex optical signal to generate an uncorrelated output. We experimentally demonstrated this micro-cavity scrambler by using a chaotic laser light as incident signal and studied the influences of the coupling state. Experiments achieved a fully scrambling with a low cross correlation of 0.028 between the output and the input. Results indicate that the scrambling effect originates from the interference among numerous WGMs in the bottle cavity. It is believed that the micro bottle cavity having an efficient scrambling function can become a promising candidate for encryption.

    Paper Information

    Manuscript Accepted: Mar. 7, 2023

    Posted: Mar. 17, 2023

    DOI: 10.3788/COL202321.060601