Patent ID: 9602200
Date: 2017-03-21
CPC Classifications: H04B,H04J

Claim:
1. An apparatus for measuring optical power in a bidirectional optical network, the apparatus comprising: a first combination multiplexer and demultiplexer component configured to multiplex/demultiplex between a first composite optical fiber and at least a first intermediate optical fiber and a second intermediate optical fiber, wherein the first intermediate optical fiber carries a first optical signal associated with a first wavelength in a first direction, and wherein the second intermediate optical fiber carries a second optical signal associated with a second wavelength in a second direction that is opposite to the first direction; a second combination multiplexer and demultiplexer component configured to multiplex/demultiplex between a second composite optical fiber and at least the first intermediate optical fiber and the second intermediate optical fiber; a first tap photodetector positioned along the first intermediate optical fiber; a first bandpass filter positioned along the first intermediate optical fiber between the first combination multiplexer and demultiplexer component and the first tap photodetector; a first measurement device configured to measure the first optical signal from the first tap photodetector; a second tap photodetector positioned along the second intermediate optical fiber; a second bandpass filter positioned along the second intermediate optical fiber between the second combination multiplexer and demultiplexer component and the second tap photodetector; and a second measurement device configured to measure the second optical signal from the second tap photodetector.