Patent ID: 9323011
Filing Date: 2016-04-26
CPC Classification: G02B

Claim Text:
1. A hybrid integrated optical device comprising: at least one optical bench chip having a first side and a second side opposite to the first side and a set of U shaped alignment optical waveguides formed at the first side of the optical bench chip, wherein each of the set of U shaped alignment optical waveguides has a first end and a second end exposed on one end face of the optical bench chip; at least one laser chip having a first side and a second side opposite to the first side and at least one laser waveguide formed at the first side of the laser chip; wherein the laser chip is approximately aligned and flip-chip bonded onto the optical bench chip with the first side of the laser chip facing the first side of the optical bench chip; an optical waveguide chip disposed adjacent the optical bench chip, the optical waveguide chip having a first side and a second side opposite to the first side and at least one optical device waveguide and a first set and a second set of alignment optical waveguides formed at the first side of the optical waveguide chip, wherein each of the alignment optical waveguides has an end exposed on one end face of the optical waveguide chip which faces the one end face of the optical bench chip, wherein the laser waveguide of the laser chip is aligned with the optical device waveguide of the optical waveguide chip, and wherein the end of at least one of the first set of alignment optical waveguides of the optical waveguide chip is aligned with the first end of one of the U shaped alignment optical waveguides of the optical bench chip, the end of at least one of the second set of alignment optical waveguides of the optical waveguide chip is aligned with the second end of the one of the U shaped alignment optical waveguides of the optical bench chip, and the end of at least another one of the first set of alignment optical waveguides of the optical waveguide chip is misaligned with the first end of another one of the U shaped alignment optical waveguides of the optical bench chip, and the end of at least another one of the second set of alignment optical waveguides of the optical waveguide chip is misaligned with the second end of the other one of the U shaped alignment optical waveguides of the optical bench chip.