公开(公告)号：US20220252791A1

公开(公告)日：2022-08-11

申请号：US17590196

申请日：2022-02-01

申请人： Photonic Systems, Inc.

发明人： Edward Wooten

IPC分类号： G02B6/30

摘要： An optical mode converter includes a silicon substrate and a silicon dioxide film deposited on a top surface of the silicon substrate. A lithium niobate waveguide positioned on the silicon dioxide film having a slab and a rib that both taper in a direction of beam propagation through the optical mode converter. A doped silicon dioxide waveguide is positioned on top of the lithium niobate waveguide and has a slab that tapers in the direction of the optical beam propagation through the optical mode converter. The optical mode converter expands an optical mode of the optical beam propagating through the optical mode converter from a first optical mode size to a second optical mode size.

公开(公告)号：US11977283B2

公开(公告)日：2024-05-07

申请号：US17827913

申请日：2022-05-30

申请人： Photonic Systems, Inc.

发明人： Edward Wooten

IPC分类号： G02F1/035 ,  G02F1/03

CPC分类号： G02F1/035 ,  G02F1/0327 ,  G02F2202/20

摘要： A method and apparatus for efficiently modulating light includes forming a lithium niobate waveguide with a slab region and a ridge region to confine an optical mode traversing the optical modulator under the ridge region. An electro-optic polymer is formed on a top surface of the lithium niobate waveguide with the slab region and the ridge region having dimension sufficient to support an evanescent tail of the optical mode traversing the optical modulator under the ridge region during modulation. Light is applied to an input of the lithium niobate waveguide. A drive voltage is applied to the electro-optic polymer that modulates the light with the evanescent tail so that the mode expands into the electro-optic polymer material a length that provides a desired switching voltage-length product (Vπ*L).

公开(公告)号：US11709320B2

公开(公告)日：2023-07-25

申请号：US17590196

申请日：2022-02-01

申请人： Photonic Systems, Inc.

发明人： Edward Wooten

IPC分类号： G02B6/30 ,  G02B6/122 ,  G02B6/14 ,  G02B6/12

CPC分类号： G02B6/305 ,  G02B6/12004 ,  G02B6/1228 ,  G02B6/14

摘要： An optical mode converter includes a silicon substrate and a silicon dioxide film deposited on a top surface of the silicon substrate. A lithium niobate waveguide positioned on the silicon dioxide film having a slab and a rib that both taper in a direction of beam propagation through the optical mode converter. A doped silicon dioxide waveguide is positioned on top of the lithium niobate waveguide and has a slab that tapers in the direction of the optical beam propagation through the optical mode converter. The optical mode converter expands an optical mode of the optical beam propagating through the optical mode converter from a first optical mode size to a second optical mode size.

公开(公告)号：US20220382083A1

公开(公告)日：2022-12-01

申请号：US17827913

申请日：2022-05-30

申请人： Photonic Systems, Inc.

发明人： Edward Wooten

IPC分类号： G02F1/035 ,  G02F1/03

摘要： A method and apparatus for efficiently modulating light includes forming a lithium niobate waveguide with a slab region and a ridge region to confine an optical mode traversing the optical modulator under the ridge region. An electro-optic polymer is formed on a top surface of the lithium niobate waveguide with the slab region and the ridge region having dimension sufficient to support an evanescent tail of the optical mode traversing the optical modulator under the ridge region during modulation. Light is applied to an input of the lithium niobate waveguide. A drive voltage is applied to the electro-optic polymer that modulates the light with the evanescent tail so that the mode expands into the electro-optic polymer material a length that provides a desired switching voltage-length product (Vπ*L).