Volumetric waveguides in glass for optical feedthrough to vacuum

A method of fabricating a window component of a controlled environment chamber, the method comprising:

• forming a first array of coupling elements on a first surface of a window plate;
• forming a second array of coupling elements on a second surface of the window plate;
• and
• forming a plurality of waveguides in a volume of the window plate such that a respective waveguide of the plurality of waveguides optically connects a respective first coupling element of the first array of coupling elements and a respective second coupling element of the second array of coupling elements.

A controlled environment chamber comprising:

• a chamber housing;
• and
• a window component secured to the chamber housing, wherein the window component comprises:
• a window plate;
• a first array of coupling elements disposed on a first surface of the window plate;
• a second array of coupling elements disposed on a second surface of the window plate;
• and
• a plurality of waveguides formed in a volume of the window plate, wherein a respective waveguide of the plurality of waveguides optically connects a respective first coupling element of the first array of coupling elements to a respective coupling element of the second array of coupling elements.