Title:
CONNECTION STRUCTURE OF LENSED OPTICAL FIBER
Document Type and Number:
WIPO Patent Application WO/2019/021982
Kind Code:
A1
Abstract:
In the present invention, lensed optical fibers 1 having a structure wherein a rod-like GRIN lens 3 is coaxially welded to the tip of an optical fiber 2 are connected to each other by grinding the end surface of the lensed optical fiber 1 to form a spherical surface with a curvature radius R of 2 mm or greater and clamping the end surfaces to each other. Thereby, the connection loss resulting from connection via physical contact can be reduced.
Inventors:
MISU NAOKI (JP)
SAITOH TOSHIHIDE (JP)
MARUYAMA NAOHUMI (JP)
SAITOH TOSHIHIDE (JP)
MARUYAMA NAOHUMI (JP)
Application Number:
PCT/JP2018/027419
Publication Date:
January 31, 2019
Filing Date:
July 23, 2018
Export Citation:
Assignee:
TOYO SEIKAN GROUP HOLDINGS LTD (JP)
International Classes:
G02B6/32
Foreign References:
| JP2004537065A | 2004-12-09 | |||
| JP2007531005A | 2007-11-01 | |||
| US20020191918A1 | 2002-12-19 | |||
| JP2004029450A | 2004-01-29 | |||
| JP2003227963A | 2003-08-15 |
Other References:
See also references of EP 3660560A4
Attorney, Agent or Firm:
HEIWA INTERNATIONAL PATENT OFFICE (JP)
Download PDF: