| 主权项 |
1. An optical device comprising:
one or more optical fibers; and a holder including one end portion, another end portion, and a supporting portion supporting the optical fibers, the supporting portion extending from the one end portion in a direction of a first axis, the first axis extending from the one end portion to the other end portion; the one end portion including a first end face, a second end face and a third end face, the first end face extending along a first reference plane from a side of the holder to cladding regions of the optical fibers, the first reference plane intersecting with the first axis, the second end face extending along a second reference plane, the second reference plane extending from one of the one end portion and the other end portion to the other, and the third end face extending along a third reference plane, the third reference plane being inclined at an angle of less than 90 degrees and more than zero degrees with respect to the first axis, the cladding regions of the optical fibers being disposed at the second end face, the optical fibers having respective tips disposed at the third end face, the second end face of the holder including 21-th areas made of material of the holder, and the third end face of the holder including a 31-th area surrounding the tips of the optical fibers. |
