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公开(公告)号：US09110221B2
公开(公告)日：2015-08-18
申请号：US13763090
申请日：2013-02-08
Applicant: Massachusetts Institute of Technology
Inventor： Anuradha M. Agarwal , Antonio Canciamilla , Francesco Morichetti , Stefano Grillanda , Lionel C. Kimerling , Andrea Melloni , Jurgen Michel , Vivek Raghunathan , Vivek Singh
CPC classification number: G02B6/03694 , G02B6/02033 , G02B6/122
Abstract: In a photonic waveguide, there is provided an undercladding layer and a waveguide core, having a cross-sectional height and width, that is disposed on the undercladding layer. The waveguide core comprises a waveguide core material having a thermo-optic coefficient. A refractive index tuning cladding layer is disposed on top of the waveguide core. The refractive index tuning cladding layer comprises a refractive index tuning cladding material having an adjustable refractive index and an absorption length at a refractive index tuning radiation wavelength. A thermo-optic coefficient compensation cladding layer is disposed on top of the refractive index tuning cladding layer. The thermo-optic coefficient compensation cladding layer comprises a thermo-optic coefficient compensation material having a thermo-optic coefficient that is of opposite sign to the thermo-optic coefficient of the waveguide core material. The thermo-optic coefficient compensation cladding layer provides at least partial compensation for the waveguide core thermo-optic coefficient.
Abstract translation: 在光子波导中，提供了具有横截面高度和宽度的下封层和波导芯，其设置在下封层上。 波导芯包括具有热光系数的波导芯材料。 折射率调谐包层设置在波导芯的顶部。 折射率调谐包层包括在折射率调谐辐射波长处具有可调折射率和吸收长度的折射率调谐包层材料。 热电系数补偿包层设置在折射率调谐包层的顶部。 热光系数补偿包层包括具有与波导芯材料的热光系数相反的热光系数的热光系数补偿材料。 热光系数补偿包层对波导芯热光系数提供至少部分补偿。
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公开(公告)号：US20130243383A1
公开(公告)日：2013-09-19
申请号：US13763090
申请日：2013-02-08
Inventor： Anuradha M. Agarwal , Antonio Canciamilla , Francesco Morichetti , Stefano Grillanda , Lionel C. Kimerling , Andrea Melloni , Jurgen Michel , Vivek Raghunathan , Vivek Singh
CPC classification number: G02B6/03694 , G02B6/02033 , G02B6/122
Abstract: In a photonic waveguide, there is provided an undercladding layer and a waveguide core, having a cross-sectional height and width, that is disposed on the undercladding layer. The waveguide core comprises a waveguide core material having a thermo-optic coefficient. A refractive index tuning cladding layer is disposed on top of the waveguide core. The refractive index tuning cladding layer comprises a refractive index tuning cladding material having an adjustable refractive index and an absorption length at a refractive index tuning radiation wavelength. A thermo-optic coefficient compensation cladding layer is disposed on top of the refractive index tuning cladding layer. The thermo-optic coefficient compensation cladding layer comprises a thermo-optic coefficient compensation material having a thermo-optic coefficient that is of opposite sign to the thermo-optic coefficient of the waveguide core material. The thermo-optic coefficient compensation cladding layer provides at least partial compensation for the waveguide core thermo-optic coefficient.
Abstract translation: 在光子波导中，提供了具有横截面高度和宽度的下封层和波导芯，其设置在下封层上。 波导芯包括具有热光系数的波导芯材料。 折射率调谐包层设置在波导芯的顶部。 折射率调谐包层包括在折射率调谐辐射波长处具有可调折射率和吸收长度的折射率调谐包层材料。 热电系数补偿包层设置在折射率调谐包层的顶部。 热光系数补偿包层包括具有与波导芯材料的热光系数相反的热光系数的热光系数补偿材料。 热光系数补偿包层对波导芯热光系数提供至少部分补偿。
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