Low cost optical fiber rf signal distribution system

Details Low cost optical fiber rf signal distribution system Low cost optical fiber rf signal distribution system

H - Electricity

04

B

H04B 10/20 (2006.01) G02B 6/32 (2006.01) G02B 6/42 (2006.01) H04B 7/00 (2006.01) H04B 10/12 (2006.01) H04B 10/14 (2006.01)

Patent

CA 2140699

A fiber optic RF signal distribution system has a plurality of antenna stations, each station including an RF antenna. A central RF signal distribution hub receives and transmits signals within and external to the system. A pair of optical fibers connects each antenna station directly to the distribution hub with the connections being in a star configuration. A connectorized laser module permits direct coupling of a distributed feedback semiconductor laser to the end of each optical fiber without an intervening connector. The module accepts an APC connector with the angled end of its optical fiber in an aperture plane in a connector housing. A distributed feedback laser is mounted in the connector housing with a lens for illuminating the aperture plane and hence, the end of the fiber at an acute angle to the axis of the fiber. Furthermore, the illumination is defocused at the aperture plane for loose optical coupling to the fiber and minimized reflection to the DFB laser.

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