Design of an optical testbed for in-lab testing and validation for the intersatellite lasercom terminals

Lingyu Wan; Anhu Li; Lijuan Wang; Zhu Luan; Liren Liu

doi:10.1117/12.612672

12 September 2005 Design of an optical testbed for in-lab testing and validation for the intersatellite lasercom terminals

Lingyu Wan, Anhu Li, Lijuan Wang, Zhu Luan, Liren Liu

Author Affiliations +

Proceedings Volume 5892, Free-Space Laser Communications V; 58921N (2005) https://doi.org/10.1117/12.612672
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

For on-ground performances testing and verification for intersatellite laser communication systems, a compact and multi-function optical testbed and a 2-D sub-micro-radian beamsteerer were designed. The testbed consists mainly of an optical simulator for long-distance propagation of laser beams, two CCD detectors, an autocollimation system, an interferometer, and a noise light source, for the uses is to measure far-field beam characteristics, transmitting powers, the wavefront errors and to evaluate the communication performances of any lasercom terminals with a aperture less than 280 mm in link level. The range of beam propagation distance of the optical simulator is from 2.8km to 3,5000km. An angular deviation yielded by the beamsteerer is to simulate the pointing error caused by all error sources. And a light source is to provide the noise-like illumination of changeable levels. Combined the testbed with the beamsteerer, it can measure the pointing errors and the tracking errors of the lasercom terminals, and estimates dynamic communication performances in the presence of random angular jitter. So the testbed has the potential to become all-purpose and tests the optical, communication and track performances for intersatellite lasercom terminals (ISLTs).

Citation Download Citation

Lingyu Wan, Anhu Li, Lijuan Wang, Zhu Luan, and Liren Liu "Design of an optical testbed for in-lab testing and validation for the intersatellite lasercom terminals", Proc. SPIE 5892, Free-Space Laser Communications V, 58921N (12 September 2005); https://doi.org/10.1117/12.612672

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