Patent ID: 8837953
Filing Date: 2014-09-16
Classification: H04B,H04J

Abstract:
1. A bi-directional optical transceiver, comprising: a plurality of single mode optical ports including circuitry programmed to enable communication between a plurality of customer sites and a regional distribution node via a plurality of corresponding single-mode optical fibers; a multi-mode passive optical combiner coupled between the plurality of single-mode optical ports and at least one multi-mode optical fiber, and configured to combine a plurality of single-mode optical signals into a single, multi-mode optical signal, wherein the single-mode optical signals are from the plurality of single-mode optical fibers and received at the plurality of single-mode optical ports, each of the received single-mode optical signals having a distinct optical mode, wherein the at least one multi-mode optical fiber is configured to output power in a plurality of modal patterns via the multi-mode optical signal; and a photo detector coupled to the at least one multi-mode optical fiber and formed large enough to detect a total optical power of the multi-mode optical signal output from the at least one multi-mode optical fiber without optical beat interference in a detector output signal; and an amplifier coupled to receive an output of the photo detector.