Title:
VARIABLE OPTICAL ATTENUATOR
Document Type and Number:
Japanese Patent JP2004094187
Kind Code:
A
Abstract:
To provide a variable optical attenuator which can be miniaturized and can precisely control an optical attenuation quantity.
Two mirrors 15 and 16 having an angle of 180° are formed in the front of a mirror member 17. On a fiber array 14, an input optical fiber 12 and an output optical fiber 13 are held at a specified interval and a projection lens 23 and an incidence lens 24 are provided in the front of the fiber array 14 opposite end surfaces of the input optical fiber 21 and output optical fiber 13 respectively. The mirror member 17 is linearly moved by an actuator 18 to vary the optical attenuation quantity.
Inventors:
IMAI KIYOSHI
FUKUDA KAZUYOSHI
NAKANISHI YOICHI
TANAKA HIROKAZU
ONISHI TETSUYA
FUKUDA KAZUYOSHI
NAKANISHI YOICHI
TANAKA HIROKAZU
ONISHI TETSUYA
Application Number:
JP2003010661A
Publication Date:
March 25, 2004
Filing Date:
January 20, 2003
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
G02B26/02; G02B6/26; G02B6/35; G02B6/32; (IPC1-7): G02B26/02
Attorney, Agent or Firm:
Masafusa Nakano