公开(公告)号：US11733464B2

公开(公告)日：2023-08-22

申请号：US17286601

申请日：2019-07-11

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Ryota Kakei ,  Shin Kato ,  Fumitsugu Fukuyo ,  Tomoya Nakazawa ,  Masaru Shimomaki ,  Shinichi Ohba ,  Yu Matsushiro

IPC: G02B6/38 ,  G02F1/35 ,  G02F1/365

CPC classification number: G02B6/3803 ,  G02F1/3528 ,  G02F1/365

Abstract: A fiber structure includes first and second optical fibers disposed such that end portions thereof butt, a sheet-shaped saturable absorber including a carbon nanotube and disposed between the end portion of the first optical fiber and the end portion of the second optical fiber, and a housing internally accommodating the end portion of the first optical fiber and the end portion of the second optical fiber. A space in the housing including the saturable absorber is airtight.