DS/EN 60793-1-45-2004

Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diameter


标准号
DS/EN 60793-1-45-2004
发布日期
2004年03月15日
实施日期
2004年02月12日
废止日期
国际标准分类号
33.180.10
发布单位
DK-DS
适用范围
This part of 60793 establishes uniform requirements for measuring the mode field diameter (MFD) of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. The MFD represents a measure of the transverse extent of the electromagnetic field intensity of the mode in a fibre cross section, and it is defined from the far-field intensity distribution as a ratio of integrals known as the Petermann II definition. See equation (1). The definitions of MFD are strictly related to the measurement configurartions. The mathematical equivalence of these definitions results from transform relationships between measurement results obt

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