Corning Inc. of Corning, NY, has enhanced its singlemode optical-fiber product line to improve splicing efficiency. The company says it has set a new industry standard for core/clad concentricity by tightening its specification 25%, from ٞ.8 to ٞ.6 micron. According to Curt Weinstein, Corning`s telephony manager, a more efficient splicing process can result in improved performance and reduced labor and costs. All Corning, Titan, and smf-28 optical-fiber products are now being manufactured to the new specification.