Method of Making An Optical Fiber
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Abstract
Microstructured optical fiber and method of making. Glass soot is deposited and then consolidated under conditions which are effective to trap a portion of the consolidation gases in the glass to thereby produce a non-periodic array of voids which may then be used to form a void containing cladding region in an optical fiber. Preferred void producing consolidation gases include nitrogen, argon, CO2, oxygen, chlorine, CF4, CO, SO2 and mixtures thereof.
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Citations
41 Claims
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1-22. -22. (canceled)
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23. A method of making an optical fiber comprising
forming via a CVD operation a soot containing optical fiber preform; -
consolidating the soot in said soot containing preform in a gaseous atmosphere under conditions which are effective to trap a portion of said gaseous atmosphere in said preform during said consolidation step, thereby forming a consolidated preform having voids in said preform, and using said preform in a manufacturing process to make an optical fiber having a core region having a first refractive index and a cladding region having a second refractive index lower than that of the core, said cladding comprising a region of non-periodically located voids surrounding said core having a total fiber void area percent, when the fiber is viewed in cross-section, that is greater than 0.05 percent. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A method of making an optical fiber comprising
forming via a CVD operation a soot containing optical fiber preform; -
consolidating the soot preform in a gaseous atmosphere which comprises at least one gas selected from the group consisting of nitrogen, argon, CO2, oxygen, chlorine, CF4, CO, SO2and mixtures thereof under conditions which are effective to trap a portion of said gaseous atmosphere in said preform during said consolidation step, thereby resulting in the formation of voids in said consolidated preform, and using said consolidated preform in a manufacturing process to form an optical fiber having a core region having a first refractive index and a cladding region having a second refractive index lower than that of the core such that light which is transmitted through the fiber is retained generally within the core, whereby said voids are located at least substantially in the cladding of said optical fiber. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. (canceled)
Specification