The design of equipment for optical power measurement in FSO link beam cross-section

Jan Latal; Tomas David; Otakar Wilfert; Zdenek Kolka; Petr Koudelka; Frantisek Hanacek; Jan Vitasek; Petr Siska; Jan Skapa; Vladimir Vasinek

doi:10.1117/12.921701

1 May 2012 The design of equipment for optical power measurement in FSO link beam cross-section

Jan Latal, Tomas David, Otakar Wilfert, Zdenek Kolka, Petr Koudelka, Frantisek Hanacek, Jan Vitasek, Petr Siska, Jan Skapa, Vladimir Vasinek

Author Affiliations +

Proceedings Volume 8436, Optics, Photonics, and Digital Technologies for Multimedia Applications II; 843610 (2012) https://doi.org/10.1117/12.921701
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

The free space optical links have found their major application in today's technological society. The demand for quality broadband is a must for all types of end users in these times. Because of the large jamming from wireless radio networks in non-licensed ISM bands, the free space optical links provide bridging of some densely populated urban areas. Their advantage is the high transmission rate for relatively long distances. However, the disadvantage is the dependence of free space optical links on atmospheric influences. Aired collimated optical beam passes through the atmospheric transmission environment and by its influence cause the deformation of the optical beam. Author's team decided to construct a special measuring device for measurement of optical power in FSO link beam cross-section. The equipment is mobile and can be rearranged and adjust according to the given location and placement of the FSO link at any time. The article describes the individual structural elements of the measuring equipment, its controlling and application for evaluation and adjustment of measuring steps. The graphs from optical power measurements in the beam cross-section of professional FSO links are presented at the end.

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Jan Latal, Tomas David, Otakar Wilfert, Zdenek Kolka, Petr Koudelka, Frantisek Hanacek, Jan Vitasek, Petr Siska, Jan Skapa, and Vladimir Vasinek "The design of equipment for optical power measurement in FSO link beam cross-section", Proc. SPIE 8436, Optics, Photonics, and Digital Technologies for Multimedia Applications II, 843610 (1 May 2012); https://doi.org/10.1117/12.921701

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