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Wielomodowe sieci pasywne do zastosowań w LAN

Bereś-Pawlik E., Lis G., Budzyń G.

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

2010

nr 8-9

764-768

W ostatnich latach zainteresowanie pasywnymi sieciami wielomodowymi szybko rośnie. Przedstawiono możliwości komercyjnego zastosowania pasywnych wielomodowych struktur sieciowych. Zaproponowano kilka podstawowych struktur sieci, zbudowanych na bazie światłowodów Gl 50/125 um oraz sprzęgaczy Gl 50/125/um. Rozważono możliwe do osiągnięcia rozmiary oraz szybkości transmisji w proponowanych strukturach sieci wielomodowych.

During last year the interest in passive multimode fiber networks increased very strongly. These networks should be cheaper and more comfortable than single mode structures. The paper presents possibilities of commercial application of multimode passive network structures. In the paper a few fundamental structures of fiber network are proposed, built on the base of multimode fiber Gl 50/125 u,m and couplers Gl 50/125 urn. We consider a possibility to achieve both: their dimensions and speed transmissions in proposed multimode network structures. These parameters were estimated after experimental measurements of both: BER and transmission bands for investigated networks.

An analysis of an optical vortices interferometer with focused beam

Frączek E., Budzyń G.

Optica Applicata

2009

Vol. 39, nr 1

91--99

In recent years a lot of effort was put into testing and improving the idea of a three-beam interferometer known as an optical vortices interferometer (OVI). Devices based on the idea of the OVI allow measuring small rotation angles and small shifts with a superb resolution. Unfortunately, there are still many problems that have to be solved before an OVI-based device can go into production. In this paper, theoretical calculations and experimental results of using another type of OVI, OVI with focused beam, are presented. The results of measuring small displacements and small rotation angles of reflecting areas are also shown.