| 摘要 |
The present invention addresses the problem of making it possible for an observer to more instinctively understand a form error in an end surface position of a pattern, and therefore to enable the observer to more effectively measure the form error in the end surface position. In order to solve the problem, an optical waveguide element is provided with an optical waveguide provided with a core, and an array pattern that is formed and linearly arrayed in a region including the vicinity of the end part of the core. |
