Title:
OPTICAL FIBER ATTENUATOR AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2005010222
Kind Code:
A
Abstract:
To provide an optical fiber attenuator capable of obtaining desired exiting light power, and to provide a manufacturing method of the optical fiber attenuator which is convenient and with which high production efficiency can be realized.
In the manufacturing method of the optical fiber attenuator, one part of an optical fiber which is provided with a first core 11 located on cross-section central part and one or more second cores 12 located on such a position that the reach quantity of light propagating through the first core 11 and a clad 13 near the first core 11 comes to 0.01 dB/m or less is heated and elongated. The optical fiber attenuator 10 is manufactured by the manufacturing method of the optical fiber attenuator.
Inventors:
SASAKI HIDEKI
Application Number:
JP2003171152A
Publication Date:
January 13, 2005
Filing Date:
June 16, 2003
Export Citation:
Assignee:
FUJIKURA LTD
International Classes:
G02B6/00; G02B6/287; (IPC1-7): G02B6/00; G02B6/287
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama