Fiber splicer

Details Fiber splicer Fiber splicer

2006-12-05

2006-12-05

Pak, Sung (Department: 2874)

Optical waveguides

With splice

Fusion splicing

C385S095000, C385S097000, C385S098000

Reexamination Certificate

active

07144165

ABSTRACT:
Optical fibers (1, 1′) are fusion spliced to each other by using a CO2 laser (109) having an emission wavelength of 9.3 microm. The heat absorption of the fibers is higher and the variation of the absorption for small deviations of the wavelength is smaller than at the conventional wavelength of 10.6 microm. As a result, less laser power is needed, the laser construction may be more compact and safety problems can easier be handled. The optical arrangement for the light beam of the CO2 laser includes deflecting and focusing the collimated laser beam (20) emitted by the laser using a mirror (10) having a curved surface of concave nearly paraboloid shape, the splice position (30) located at a small distance of the focus of the mirror and well outside the collimated beam.

REFERENCES:
patent: 4547650 (1985-10-01), Arditty et al.
patent: 4802729 (1989-02-01), Rivoallan et al.
patent: 5161207 (1992-11-01), Pikulski
patent: 5339380 (1994-08-01), Wysocki et al.
patent: 6411759 (2002-06-01), Beguin et al.
patent: 19722415 (1998-12-01), None
Swedish Patent Office, International Search Report for PCT/SE03/00323, dated Apr. 30, 2003.

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