US 12,487,399 B2
Optical waveguide structure and manufacturing method, optical waveguide module, optical switching device, and system
Min Zhou, Dongguan (CN); Zhenqing Zhao, Dongguan (CN); and Chun Sun, Dongguan (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Dec. 30, 2022, as Appl. No. 18/148,879.
Application 18/148,879 is a continuation of application No. PCT/CN2021/100734, filed on Jun. 17, 2021.
Claims priority of application No. 202010637223.4 (CN), filed on Jul. 3, 2020.
Prior Publication US 2023/0152516 A1, May 18, 2023
Int. Cl. G02B 6/13 (2006.01); G02B 6/12 (2006.01)
CPC G02B 6/12007 (2013.01) [G02B 6/13 (2013.01); G02B 2006/12145 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical waveguide structure, comprising:
at least two optical waveguides disposed in a stacked manner, wherein the at least two optical waveguides comprise a first optical waveguide and a second optical waveguide, and the first optical waveguide and the second optical waveguide are located at different layers of the optical waveguide structure, and wherein the first optical waveguide is located at an upper layer of the second optical waveguide;
a first optical waveguide channel disposed between the first optical waveguide and the second optical waveguide, wherein a first end of the first optical waveguide channel is physically connected to the first optical waveguide and a second end of the first optical waveguide channel is physically connected to the second optical waveguide; and
at least two optical switches, a quantity of optical switches connected to the first optical waveguide is the same as a quantity of first optical waveguide channels connected to the first optical waveguide, and the first optical waveguide channels connected to the first optical waveguide and the optical switches on the first optical waveguide are alternately arranged one by one.