@article{KiharaMitsuru:1993-01-25, author="Kihara, Mitsuru and Nakashima, Tsuyoshi and Matsumoto, Michito", title="Optimum Mode Field Diameter Region in Thermally-Diffused Expanded Core Fiber", journal="IEICE transactions on communications", ISSN="09168516", publisher="The Institute of Electronics, Information and Communication Engineers", year="1993", month="jan", volume="", number="1", pages="36-38", URL="http://ci.nii.ac.jp/naid/110003216859/en/", DOI="", }