Integrated photonics with active polarization control
| DWPI Title: Integrated photonics polarization controller for converting and controlling input optical signal with TE00 mode into output optical signal with polarization on Poincare sphere, ash optical splitter adapted to receive TE00 input optical signal to split input optical signal into two signals |
| 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. |
| Use: Integrated photonics polarization controller for converting and controlling an input optical signal with a TE00 mode into an output optical signal with polarization on a Poincare sphere. |
| Advantage: The device breaks symmetry and provides phase matching to simultaneously enable efficient power transfer and a short transfer length i.e. small device size. The device can alter polarization of an input optical signal to any desired polarization on the Poincare sphere while remaining compatible with fully integrated photonics. |
| Novelty: The controller (100) has a 50-50 optical splitter (110) adapted to receive a TE00 input optical signal to split an input optical signal (105) into two thereby forming a first pair of intermediate optical signals, and to output the first pair of intermediate optical signals. An independent phase controller (130A) is adapted to receive a corresponding one of a second pair of intermediate optical signals to independently control a phase of a corresponding one of the second pair of intermediate thereby forming a corresponding one of a third pair of intermediate optical signals, and to output a corresponding one of the third pair of intermediate optical signals. |
| Filed: 12/12/2022 |
| Application Number: US18079140A |
| Tech ID: SD 15688.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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