Lossless optical divider/combiner with pump diversion for...

Details Lossless optical divider/combiner with pump diversion for... Lossless optical divider/combiner with pump diversion for...

G - Physics

02

B

G02B 27/10 (2006.01) H04B 10/17 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2430974

In this invention we present a method and apparatus of simultaneously compensating a divider power-loss and managing the pump's power budget in upgradeable and scalable passive optical network architecture. The apparatus namely called lossless splitter, is passive, bi-directional and allows modular and scalable PON architecture. According to the preferred embodiment of the present invention a mean of dividing (combining) optical signals to (from) a plurality of paths in a lossless fashion is proposed. This divider (combiner) also as the property of distributing the residual optical pump power, needed for amplifier stage activation, to other dividers (combiners) in a chain. The incoming pump power may be provided by the signal transmission fiber or by a pump power transmission fiber. Applications of this lossless divider (combiner) are reviewed, alternative embodiments are proposed and system deployment/upgrade strategies are described.

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