Patent ID: 11923898
Assignee: LUNA INNOVATIONS INCORPORATED
Field: Measurement (Instruments)
Classification: CPC G  H | IPC H

Claim 17:
18. The optical apparatus in claim 16, wherein the light source is configured to couple light with the first polarization state into the waveguide during a first time period and to couple light with the second polarization state into the waveguide during a second time period, and
wherein the optical apparatus includes an optical backscatter reflectometer network comprising:
a polarization controller to switch between two orthogonal polarization launch states for the first and second time periods; and
a measurement interferometer to combine the light from the polarization controller with light reflected from the waveguide,
wherein the optical detection circuitry includes a polarization diverse receiver, coupled to the measurement interferometer, to separately detect the first polarization state back scatter data and the second polarization state back scatter data.