Optical waveguides – Accessories – External retainer/clamp
Patent
1993-11-19
1994-08-16
Ullah, Akm E.
Optical waveguides
Accessories
External retainer/clamp
385137, G02B 600, G02B 636
Patent
active
053393805
ABSTRACT:
An optical fiber fusion splicer apparatus (20) comprises a laser power source that produces a laser beam (32) having a laser beam axis (26). The laser power source includes a laser (22), a shutter (28) that controllably blocks and passes the laser beam, and an optical system (30) that expands the diameter of the laser beam. A parabolic mirror (34) has its axis coincident with the laser beam axis (26) and a bore (48) therethrough coincident with the laser beam axis (26). Optical fiber clamps (42, 46) hold the two optical fibers (40, 44) with their axes coincident with the laser beam axis (26) and their ends (62, 64) at the focal point (38) of the parabolic mirror (34). A sensor (82) measures the power reaching the optical fiber ends (62, 64) at the focal point (38) of the parabolic mirror (34), and a controller (72) controls the power level of the laser (22) responsive to the power measured by the sensor. The alignment of the optical fibers (40, 44) is sensed, preferably by a reflective device (74) that measures their internal reflectance or a video camera (68) that images their peripheries, and the optical fiber ends (62, 64) are aligned responsively.
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Kenna John T.
McCahon Stephen W.
Vince Michael R.
Wysocki Joseph A.
Denson-Low W. K.
Duraiswamy V. D.
Hughes Aircraft Company
Ullah Akm E.
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