Patent Number: 6,480,642

Title: Hybrid optical waveguide circuit chip, and method for predicting thecharacteristics thereof

Abstract: A hybrid optical waveguide circuit chip capable of predicting opticalcharacteristics of a first optical waveguide circuit connected to opticalelements where it is difficult to measure the optical characteristics. Inthe chip, a second optical waveguide circuit is disposed adjacent to thefirst optical waveguide circuit. One end face of the second opticalwaveguide circuit is terminated at one chip end face A of the chips, andat least one of the optical waveguide end faces at the other side of thesecond optical waveguide circuit is terminated at the other chip end faceB of the chip, wherein the optical characteristics of the second opticalwaveguide circuit are measured, and the measured values are predicted assubstantial optical characteristics of the first optical waveguide.

Inventors: Kawashima; Hiroshi (Tokyo, JP), Koshi; Hiroyuki (Tokyo, JP), Ohyama; Isao (Tokyo, JP), Nakamura; Shiro (Tokyo, JP)

Assignee:

International Classification: G02B 6/132 (20060101); G02B 6/13 (20060101); G02B 6/42 (20060101); G02B 6/12 (20060101); G02B 006/12 ()

Expiration Date: 11/12014