Title:
FERRULE FIXED TYPE OPTICAL ISOLATOR AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2003/098324
Kind Code:
A1
Abstract:
An optical isolator comprising a combination of an optical isolator body including a Faraday element, a polarizer and an analyzer arranged in front and rear thereof, and permanent magnets arranged on the outside thereof, and a holder for holding the optical isolator body. The optical isolator body comprises two elongated planar permanent magnets disposed oppositely at an interval, and the polarizer, the Faraday element and the analyzer disposed between the permanent magnets. The holder has a groove made in one side of a tubular section having a central through hole and the optical isolator body is inserted into that groove while exposing the outer side face of the permanent magnets and secured in place. The holder can be fixed to the end face of a ferrule on the side opposite to the groove.
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Inventors:
KAWAI HIROTAKA (JP)
Application Number:
PCT/JP2003/006350
Publication Date:
November 27, 2003
Filing Date:
May 21, 2003
Export Citation:
Assignee:
FDK CORP (JP)
NAGASAWA MITSURU (JP)
KAWAI HIROTAKA (JP)
NAGASAWA MITSURU (JP)
KAWAI HIROTAKA (JP)
International Classes:
G02B6/36; G02B6/26; G02B27/28; G02F1/09; G02B6/38; (IPC1-7): G02B27/28
Foreign References:
| US20010012422A1 | 2001-08-09 | |||
| JPH11167085A | 1999-06-22 |
Attorney, Agent or Firm:
ISSHIKI & CO. (12-7 Shinbashi 2-chom, Minato-ku Tokyo, JP)
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