Patent ID: 8488974
Filing Date: 2013-07-16
Classification: H04B,H04J

Abstract:
1. An optical communication system comprising: a server having a server transceiver for transmitting optical downlink signal to plurality of end user transceivers capable of detecting optical signals, wherein said server transceiver is capable of transmitting polarization controlled optical downlink signal; a trunk single mode, non polarizing optical fiber receiving downlink signal from said server transceiver and transferring said signal to server port of a polarizing beam splitter; said polarizing beam splitter directs X polarization and Y polarization components of said downlink signal to X port and Y port of said polarizing beam splitter respectively; an X non-polarizing single mode optical fiber connected to X port of said polarizing beam splitter and transmitting said X component of said downlink signal to at least one user; and a Y non-polarizing single mode optical fiber connected to Y port of said polarizing beam splitter and transmitting said Y component of said downlink signal to at least one user, wherein said server transceiver capable of transmitting downlink polarization controlled signal such that said downlink signal is substantially transmitted to one of X port or Y port depending to which of said users said downlink signal is intended; wherein at least one of said end user transceivers comprises a first laser arranged to emit first laser signals polarized in first polarization and a second laser arranged to emit second laser signals polarized in second polarization, wherein said first and second polarization are substantially orthogonal; wherein the server transceiver is arranged to receive the first and second laser signals, to determine which of the first and second laser signals are stronger and to transmit feedback data to the at least one of said end user transceivers indicative of which of the first and second laser signals are stronger.