| 摘要 |
<p>A waveguide attaching part (102) is formed in a part of an optical fiber (100). The waveguide attaching part (102) is formed by cutting out a part of the optical fiber (100) along a section passing through a core (120) of the optical fiber (100) in a direction in which the optical fiber (100) extends. A first recess (122) is formed in the waveguide attaching part (102). The first recess (122) is formed by removing the core (120) of the optical fiber (100). Furthermore, a ridge type waveguide (220) is installed into the first recess (122).</p> |
