Patent ID: 11888527
Assignee: CISCO TECHNOLOGY, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A system comprising:
an optical source arranged to emit an optical signal;
an integrated circuit comprising a first polarization beam splitter and a mirror;
an optical fiber arranged to carry the optical signal from the optical source to the integrated circuit, wherein the first polarization beam splitter is arranged to split the optical signal at the integrated circuit into a transverse electric component and a transverse magnetic component, wherein the mirror is arranged to reflect the transverse magnetic component of the optical signal through the optical fiber to the optical source;
a second polarization beam splitter arranged to direct the transverse magnetic component to a photodiode, wherein the photodiode is arranged to convert the transverse magnetic component into an electrical signal; and
a polarization controller configured to adjust, based on the electrical signal, the optical signal emitted from the optical source such that the transverse magnetic component is reduced.