Method for 10 Gbps near-ground quasi-static free-space laser transmission by nutation mutual coupling

Author:

Zhang Lei1,Yu XiaonanORCID,Zhao Baiqiu,Wang Tong1,Tong Shoufeng

Affiliation:

1. Changchun University of Science and Technology

Abstract

This study proposes a method to reduce link loss in near-ground space laser communication with fiber-nutation-based mutual coupling. We designed a transmit-receive coaxial laser terminal with a 50 mm aperture and implemented beam acquisition tracking and nutation coupling using a single-detector and single-actuator. Following an indoor experiment and a 1 km field test, the single-ended nutation coupling and the two-way nutation mutual coupling theories were compared and analyzed. In conclusion, the proposed method could significantly increase the reception efficiency by ∼8 dB. The bit error rate of 10 Gbps pseudo-random code transmission was 2.478E-9. We also demonstrated video transmission.

Funder

Education Department of Jilin Province

Department of Science and Technology of Jilin Province

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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