Integrated optical phase change materials for reconfigurable optics in glass cores

An optical communication system, comprising:

• a first photonics integrated circuit (PIC);
• a second PIC;
• an optical waveguide to optically couple the first PIC to the second PIC;
• and
• an optical switch on the optical waveguide between the first PIC and the second PIC, wherein the optical switch comprises an optical phase change material.

An electronic package, comprising:

• a core, wherein the core comprises glass;
• an optical waveguide provided on the core, wherein the optical waveguide has a first branch and a second branch;
• a first optical switch on the first branch and a second optical switch on the second branch, wherein the optical switches each comprise:
• an optical phase change material that is in direct contact with the optical waveguide;
• a first component at a first end of the optical waveguide;
• a second component at a second end of the optical waveguide along the first branch;
• and
• a third component at the second end of the optical waveguide along the second branch.

A computing system, comprising:

• a board;
• a package substrate coupled to the board, wherein the package substrate comprises:
• a core, wherein the core comprises glass;
• an optical waveguide network on the core;
• and
• an optical switch on the optical waveguide network, wherein the optical switch comprises an optical phase change material;
• and
• a die coupled to the package substrate.