Title:
ON-FERRULE MOUNTED TYPE OPTICAL ISOLATOR
Document Type and Number:
Japanese Patent JP3934989
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an on-ferrule mounted type optical isolator which is miniaturized as a whole and has a reduced diameter by tightly and easily fixing each optical element without employing laminate constitution.
SOLUTION: The on-ferrule mounted type optical isolator is composed of a combination of: an optical isolator body 24 which has a polarizer 14 and an analyzer 16 arranged before and behind a Faraday element 12 and also has permanent magnets 20 and 22 arranged outside them; and a holder 30 which holds the optical isolator body. The optical isolator body is structured by arranging the two permanent magnets in a long and narrow flat plate shape opposite each other at an interval and sandwiching the optical element between them, and the holder is structure by forming a recessed groove 36 on one side of a cylindrical part 34 having a center through hole 32. The optical isolator body can be inserted into and fixed in the recessed groove with the external surfaces of the permanent magnets exposed and mounted on a ferrule 40 on the opposite side of the holder from the recessed groove.
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| WO/2001/092936 | METHOD AND DEVICE FOR ENCAPSULATING AN OPTICAL FIBRE COMPONENT |
| JPH0651157 | OPTICAL FIBER CABLE CONNECTOR |
Inventors:
Nagasawa Nobu
Hiroki Kawai
Hiroki Kawai
Application Number:
JP2002147216A
Publication Date:
June 20, 2007
Filing Date:
May 22, 2002
Export Citation:
Assignee:
FDK Corporation
International Classes:
G02B6/36; G02B27/28; G02B6/26; G02F1/09; G02B6/38; (IPC1-7): G02B27/28; G02B6/36
Domestic Patent References:
| JP2001215354A | ||||
| JP64043326U |
Attorney, Agent or Firm:
Shigemi
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