Integrated photonics with active polarization control
US12429716B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2022 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jul 3, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0142
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An integrated photonics polarization controller that converts an input optical signal having a TE00 mode into an output optical signal having any polarization on the Poincare sphere is disclosed. This polarization conversion and control requires splitting the input optical signal into two optical signals. The first optical signal retains its TE00 mode, while the second optical signal must have a TM00 mode, with the integrated photonics polarization controller generating this TM00 mode either directly from the TE00 mode or indirectly via an intermediate signal having a TE10 mode. The magnitude and phase of the first and second optical signals are each controlled independently. The first and second optical signals are then combined to form an output optical signal and, due to the independent control of magnitude and phase of the first and second optical signals, the output optical signal may have any polarization on the Poincare sphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.