US 12,443,060 B2
Optical waveguide component, preparation method therefor, and electro-optic modulator
Zhanshi Yao, Shenzhen (CN); Xiang Yin, Shanghai (CN); Xiaolu Song, Shenzhen (CN); and Mengdie Sun, Wuhan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on May 9, 2023, as Appl. No. 18/314,241.
Application 18/314,241 is a continuation of application No. PCT/CN2021/101101, filed on Jun. 18, 2021.
Claims priority of application No. 202011246781.4 (CN), filed on Nov. 10, 2020.
Prior Publication US 2023/0273468 A1, Aug. 31, 2023
Int. Cl. G02F 1/035 (2006.01); G02B 6/12 (2006.01)
CPC G02F 1/035 (2013.01) [G02B 2006/1204 (2013.01); G02B 2006/12097 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical waveguide component comprising:
an insulating substrate,
a waveguide core,
at least two electrodes, and
a cladding layer, wherein
the at least two electrodes and the waveguide core are all disposed on the insulating substrate, the at least two electrodes are positioned on two opposing sides of the waveguide core, and the cladding layer covers at least a part of an outer wall of the waveguide core;
the waveguide core comprises an electro-optic material having an electro-optic effect;
a refractive index of the insulating substrate is less than a refractive index of the waveguide core; and
the optical waveguide component further comprises an additional layer disposed between the cladding layer and the waveguide core, and a refractive index of the cladding layer is greater than a refractive index of the additional layer, and
the cladding layer includes at least one cladding layer, the additional layer includes at least one additional layer, and the at least one cladding layer and the at least one additional layer are alternately disposed.