Optical fiber fabrication process comprising determining mode fi

Details Optical fiber fabrication process comprising determining mode fi Optical fiber fabrication process comprising determining mode fi

1983-05-16

1985-11-12

Bashore, S. Leon

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

65DIG13, C03B 3707

Patent

active

045525781

ABSTRACT:
A single mode optical fiber manufacturing process can be monitored and/or controlled determining the mode field radius and/or the cut-off wavelength of fiber produced by the process, comparing these measured fiber parameter values to predetermined target values, and setting a process step in accordance with the result of the comparison. Both fiber parameters are determined by a procedure comprising measuring, as a function of angle, the far-field power emitted by a test fiber segment, and determining the parameters of a Gaussian function G(.theta.), typically by maximizing the value of an overlap integral.

REFERENCES:
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