Wavelength insensitive integrated optic polarization splitter
AssigneeMassachusetts Institute of Technology
InventorMichael R. Watts
Life of this patent
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Abstract
An integrated optic polarization splitter, includes a pair of waveguide elements with a first waveguide element having horizontal orientation and a second waveguide element having a vertical orientation formed from a plurality of waveguide core layers. The first and second waveguide elements are intersected or nearly intersected at one end of the structure and separated at the other end of the structure and the transition there between is made to be adiabatic. The waveguide elements receive an optical signal having both a TE component and a TM component. The TE component propagates along the horizontally oriented waveguide element and the TM component propagates along the vertically oriented waveguide element.
Claims13
An integrated optic polarization splitter comprising:
- an input waveguide element that is configured to receive in input an optical signal having TE and TM components;
- a geometrically vertically oriented waveguide element coupled to said input waveguide element that is configured to propagate said TM component of said optical signal, said vertically oriented waveguide element including a plurality of core layers;
- and
- a horizontally oriented waveguide element coupled to said input waveguide element that is configured to propagate said TE component of said optical signal.
A method of forming an integrated optic polarization splitter, said method comprising:
- providing an input waveguide element that is configured to receive in input an optical signal having TE and TM components;
- and
- forming a geometrically vertically oriented waveguide element coupled to said input waveguide element that is configured to propagate said TM component of said optical signal, said vertically oriented waveguide element includes a plurality of core layers;
- and
- forming a horizontally oriented waveguide element coupled to said input waveguide element that is configured to propagate said TE component of said optical signal.
An optical waveguide splitter comprising:
- a pair of waveguide elements with a first waveguide element having a horizontal orientation and a second waveguide element having a geometrically vertical orientation formed from a plurality of waveguide core layers, wherein said first and second waveguide elements are intersected or nearly intersected at one end of the structure and separated at the other end of the structure with the transition there between made to be adiabatic;
- said waveguide elements being configured to receive an optical signal having both a TE component and a TM component and to propagate said TE component along the horizontally oriented waveguide element and said TM component along the vertically oriented waveguide.
Dependencies are inferred from the claim text.