Integrated on-chip polarizer
AssigneeElenion Technologies, LLC
InventorsYangjin Ma, Michael J. Hochberg, Ruizhi Shi, Yang Liu
Life of this patent
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Abstract
A low loss high extinction ratio on-chip polarizer is disclosed. The polarizer is formed of a mode convertor followed by a mode squeezer and a dump waveguide, and may be configured to pass a desired waveguide mode and reject undesired modes. An embodiment is described that transmits a TE0 mode while blocking a TM0 mode by converting it into a higher-order TEn mode in a waveguide taper, squeezing out the TEn mode in a second waveguide taper to lessen its confinement, and then dumping the TEn mode in a waveguide bend that is configured to pass the TE0 mode.
Claims21
1-20. (canceled)
An optical polarizer configured to suppress light in a second mode while passing through light in a first mode, comprising:
- a first tapered waveguide including a width that widens from a first width to a second width;
- a second tapered waveguide that narrows from the second width to a third width;
- and
- a bend waveguide section.
Dependencies are inferred from the claim text.