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Invited Article: CO2 laser production of fused silica fibers for use in interferometric gravitational wave detector mirror suspensions
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10.1063/1.3532770
/content/aip/journal/rsi/82/1/10.1063/1.3532770
http://aip.metastore.ingenta.com/content/aip/journal/rsi/82/1/10.1063/1.3532770
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Figures

Image of FIG. 1.
FIG. 1.

Gravitational wave detector mirror suspensions. (a) GEO600 triple suspension. (b) SOLIDWORKS rendering of an Advanced LIGO quadruple suspension.

Image of FIG. 2.
FIG. 2.

Diagram showing the profile of one end of a dumbbell shaped fiber.

Image of FIG. 3.
FIG. 3.

Power stabilization system. A small percentage of the laser power is picked off using a ZnSe Brewster window and measured using a photodiode. A graphite beam block is used to remove unwanted reflections.

Image of FIG. 4.
FIG. 4.

SOLIDWORKS rendering of the fiber pulling machine in cylindrical fiber configuration. The functions of all parts are described in the text.

Image of FIG. 5.
FIG. 5.

Rendered drawing of the laser beam delivery for cylindrical fiber production.

Image of FIG. 6.
FIG. 6.

The 3 mm diameter cylindrical fused silica stock being heated by the CO laser as the fiber is pulled.

Image of FIG. 7.
FIG. 7.

Rectangular cross-section fiber pulling machine. Ribbons are pulled from rectangular silica slides. The laser is dithered across the surface using a mirror galvanometer seen here at the front right hand side.

Image of FIG. 8.
FIG. 8.

Photograph of a ribbon being pulled. The heating zone and stock material are enclosed in a steel heat shield to minimize heat loss from the edges.

Image of FIG. 9.
FIG. 9.

The welding system consists of a CO laser delivered through an articulated arm, ZnSe output telescope, and a pair of mirror galvanometers.

Image of FIG. 10.
FIG. 10.

A pair of computer controlled mirror galvanometers are used to move the laser over the weld region.

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/content/aip/journal/rsi/82/1/10.1063/1.3532770
2011-01-21
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Invited Article: CO<sub>2</sub> laser production of fused silica fibers for use in interferometric gravitational wave detector mirror suspensions
http://aip.metastore.ingenta.com/content/aip/journal/rsi/82/1/10.1063/1.3532770
10.1063/1.3532770
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