Filter device and manufacturing method thereof

Details Filter device and manufacturing method thereof Filter device and manufacturing method thereof

2009-03-24

2010-11-09

Ullah, Akm E (Department: 2874)

Optical waveguides

With optical coupler

Permanently fixed coupler

C385S147000

Reexamination Certificate

active

07831120

ABSTRACT:
A filter device is provided, including a first and second conductor tube and an outside tube. The first light conductor tube includes a first end for light input, a second end including a first slanted assembled end surface coated with a filter, a first tube, and a first light conductor inserted into the first capillary. The second light conductor tube includes a third end for light output, a fourth end including a second slanted assembled end surface, a second capillary, and a second light conductor inserted into the second capillary. The second assembled end of the fourth end is disposed next to and parallel to the first slanted assembled end surface of the second end of the first light conductor tube to coaxially couple to the first light conductor tube. The outside tube is jacketed outside of the first and second light conductor tubes.

REFERENCES:
patent: 4806289 (1989-02-01), Laursen et al.
patent: 6099135 (2000-08-01), Oda et al.
patent: 6219470 (2001-04-01), Tu
patent: 6625350 (2003-09-01), Kikuchi et al.
patent: 7043119 (2006-05-01), Takeuchi
patent: 7672551 (2010-03-01), Ji

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