Variable optical attenuator

Details Variable optical attenuator Variable optical attenuator

2007-05-01

2007-05-01

Leung, Quyen (Department: 2874)

Optical waveguides

Accessories

Attenuator

Reexamination Certificate

active

10519762

ABSTRACT:
Two mirrors (15) and (16) making an angle of 90 degrees are formed on a front face of a mirror member (17). An optical fiber for input (12) and an optical fiber for output (13) are held in a fiber array (14) with a predetermined interval, and an emission lens (23) and an injection lens (24) are provided on a front face of the fiber array (14) in a way that they are opposed to end faces of the optical fiber for input (12) and the optical fiber for output (13) respectively. According to the variable optical attenuator, when the mirror member (17) is straightly moved by an actuator (18), light attenuation can be varied thereby.

REFERENCES:
patent: 6137941 (2000-10-01), Robinson
patent: 6304709 (2001-10-01), Fujita
patent: 6628882 (2003-09-01), Vaganov et al.
patent: 2-58721 (1990-04-01), None
patent: 10-307264 (1998-11-01), None
patent: 2003-195191 (2003-07-01), None
English Translation of JP-A-2003-195191 published on Jul. 9, 2003, 10 pages (Japanese Publication and Patent Abstracts of Japan were filed on Dec. 29, 2004).
English Translation of Japanese Utility Model Laid-Open No. 2-58721 published on Apr. 26, 1990, 3 pages (Japanese Utility Model Laid-Open was filed on Dec. 29, 2004).
Patent Abstracts of Japan, publication No. 10-307264, published on Nov. 17, 1998 (1 page).
Patent Abstracts of Japan, publication No. 2003-195191, published on Jul. 9, 2003 (1 page).

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