US 12,768,748 B2 · Characterizing optical structures based on optical circuits with different structural features

Abstract

In one aspect, in general, a method comprises: providing optical waves to each of N optical circuits, each optical circuit comprising one or more of each of p structural features, where p is an integer greater than 1, and N is greater than or equal to p+1; measuring optical responses from each of the optical circuits, where each measured optical response depends at least in part on the optical wave provided to the respective optical circuit; and computing an optical loss associated with each of the p structural features based at least in part on an optical loss for each optical circuit that is calculated based at least in part on the optical wave provided to and the measured optical response from a respective optical circuit, and quantities of each of the p structural features in each of the respective optical circuits.

Claims20

Dependent claims

A method comprising:

providing optical waves to each of N optical circuits, each optical circuit comprising one or more of each of p structural features, where p is an integer greater than 1, and N is greater than or equal to p+1;
measuring optical responses from each of the optical circuits, where each measured optical response depends at least in part on the optical wave provided to the respective optical circuit;
and
computing an optical loss associated with each of the p structural features based at least in part on
an optical loss for each optical circuit that is calculated based at least in part on the optical wave provided to and the measured optical response from a respective optical circuit, and
quantities of each of the p structural features in each of the respective optical circuits.

3 more elements

An article of manufacture comprising:

at least two optical circuits, each optical circuit comprising
a first optical structure configured to transform a mode associated with an optical wave propagating through the first optical structure and combine modes associated with respective optical waves propagating through the first optical structure,
a second optical structure configured to separate modes associated with an optical wave propagating through the second optical structure and transform a mode associated with an optical wave propagating through the second optical structure,
a first optical coupler and a second optical coupler connected to the first optical structure,
a third optical coupler and a fourth optical coupler connected to the second optical structure, and
a tested optical element that is coupled to the first optical structure and the second optical structure by a respective first coupling structure and a second coupling structure;
wherein each tested optical element comprises one or more of each of two or more structural features, and respective quantities of at least two structural features are different within each optical circuit.

4 more elements

Dependencies are inferred from the claim text.

Characterizing optical structures based on optical circuits with different structural features

Life of this patent

Characterizing optical structures based on optical circuits with different structural features

Life of this patent

Abstract

Claims20