Publication detail

Autoaligning System for Short-Range Free Space Optics Links

SKRYJA, P. BARCÍK, P. KOLKA, Z. WILFERT, O.

Original Title

Autoaligning System for Short-Range Free Space Optics Links

Type

conference paper

Language

English

Original Abstract

The paper presents a system for autonomous pointing, acquisition, and tracking of an FSO fixture. The initial manual alignment of the FSO link is a challenging and time-consuming operation. Therefore, the proposed system solves the problem of the auto-alignment operation of two FSO transceivers at a short distance (~1km). The system uses a Schmidt-Cassegrain telescope placed on a tripod with an altazimuth mount. There is a 1550 nm laser beam used for data transmission and a 850 nm laser beam, which is used for acquisition and coarse tracking. The autonomous initial pointing is performed by reading geographical position coordinates from the GNSS module which are sent by LoRa technology to the counterpart FSO fixture. After this scanning and positioning by four-quadrant photodiode, the receiver's Field of View (FOV) is aligned with the transmitter.

Keywords

Free Space Optics system, PAT, LoRa, Pointing, Acquisition, Tracking

Authors

SKRYJA, P.; BARCÍK, P.; KOLKA, Z.; WILFERT, O.

Released

22. 4. 2022

Publisher

Institute of Electrical and Electronics Engineers Inc.

ISBN

9781728186863

Book

2022 32ND INTERNATIONAL CONFERENCE RADIOELEKTRONIKA

Pages from

99

Pages to

103

Pages count

5

URL

https://ieeexplore.ieee.org/document/9764918

BibTex

@inproceedings{BUT178065,
  author="Petr {Skryja} and Peter {Barcík} and Zdeněk {Kolka} and Otakar {Wilfert}",
  title="Autoaligning System for Short-Range Free Space Optics Links",
  booktitle="2022 32ND INTERNATIONAL CONFERENCE RADIOELEKTRONIKA",
  year="2022",
  pages="99--103",
  publisher="Institute of Electrical and Electronics Engineers Inc.",
  doi="10.1109/RADIOELEKTRONIKA54537.2022.9764918",
  isbn="9781728186863",
  url="https://ieeexplore.ieee.org/document/9764918"
}