Abstract: The invention relates to a method of making an optical fiber and an optical fiber made in accordance with the inventive method. The method includes the step of drawing an optical fiber from a multiple crucible apparatus, wherein one of the crucibles of the apparatus has a non-symmetrical orifice (not shown). The inventive fiber has at least a core and cladding. At least one section of the inventive fiber includes an orientation element.

Abstract: The disclosed invention includes a method of making an optical fiber drawn from a multiple crucible. The method includes moving a first crucible of the multiple crucible relative to a second crucible of the multiple crucible. The invention also includes minimizing core and cladding diffusion. A tip of the first crucible is disposed axially above a tip of the second crucible by a preselected distance. The invention further includes the ability to alter a diameter of the core of the fiber. A differential pressure is applied to the first crucible. A positive differential pressure is applied to increase the core diameter. A negative differential pressure is applied to decrease the core diameter. Furthermore, the invention includes drawing the fiber under non-isothermal conditions; there is a thermal gradient of at least 10° C./m between the two tips.

Abstract: The invention relates to a method of making an optical fiber and an optical fiber made in accordance with the inventive method. The method includes the step of drawing an optical fiber from a multiple crucible apparatus, wherein one of the crucibles of the apparatus has a non-symmetrical orifice. The inventive fiber has at least a core and cladding. At least one section of the inventive fiber includes an orientation element.

Abstract: A receptacle in which a collapsible fluid-holding container is disposed within an outer rigid container. The collapsible container comprises a flexible bag and a mouthpiece that is joined to the mouth of the rigid container. A valve in the outer container at a region distal from the mouth vents the region between the containers to enable the collapsible container to be filled with liquid. The valve also admits air between the containers to enable the inner container to collapse as fluid is dispensed. A pair of feet protrude laterally from one side of the receptacle to raise the bottom of the receptacle when it is horizontally disposed in a fluid-dispensing position. A method is disclosed for evacuating the outer container to facilitate the expansion of a collapsed flexible container.