20250233663. Loss Optim (AT&T Intellectual Property I, L.P.)
LOSS OPTIMIZING ASYMMETRIC OPTICAL SPLITTER
Abstract: an example apparatus may include an optical splitter apparatus that includes a dual mode fiber having a single mode fiber core embedded in a multi-mode fiber core, a plurality of single mode fibers, and a funnel waveguide coupling the dual mode fiber to the single mode fibers. the optical splitter apparatus may be for use in a passive optical network. the single mode fiber core may be for transmitting downstream optical signals, where the funnel waveguide distributes the downstream optical signals to the single mode fibers. in addition, the single mode fibers may transmit upstream optical signals, and the funnel waveguide may direct the upstream optical signals into the multi-mode fiber core. the optical splitter apparatus may have an asymmetric insertion loss ratio between the downstream optical signals received via the single mode fiber core and the upstream optical signals received via the single mode fibers.
Inventor(s): Ricky Perry, Stewart Barker, Julie Lorentzen
CPC Classification: H04B10/2581 (Multimode transmission)
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