Standard No.:	GB/T 15972.42-2008
English Name:	Specifications for optical fibre test methods - Part 42: Measurement methods and test procedures for transmission and optical characteristics - Chromatic dispersion
Chinese Name:	光纤试验方法规范 第42部分：传输特性和光学特性的测量方法和试验程序 波长色散
Chinese Classification:	M33    Optical communication equipment
Professional Classification:	GB    National Standard
ICS Classification:	33.180.10 33.180.10    Fibres and cables 33.180.10
Source Content Issued by:	AQSIQ; SAC
Issued on:	2008-3-31
Implemented on:	2008-11-1
Status:	superseded
Superseded by:	GB/T 15972.4-1998 Generic specification for optical fibres―Part 4:Measuring methods for transmission and optical characteristics GB/T 15972.42-2021 Specifications for optical fibre test methods—Part 42:Measurement methods and test procedures for transmission characteristics—Chromatic dispersion
Superseded on:	2021-8-1
Superseding:	GB/T 15972.4-1998 Generic specification for optical fibres―Part 4:Measuring methods for transmission and optical characteristics
Target Language:	English
File Format:	PDF
Word Count:	9000 words
Translation Price(USD):	270.0
Delivery:	via email in 1~3 business day

本部分为GB/T 15972的第42部分。本部分代替GB/T 15972.4-1998《光纤总规范 第4部分：传输特性和光学特性试验方法》第8章。本标准规定了光纤波长色散的试验方法，确立了对试验装置、注入条件、程序、计算方法和结果的统一要求。本标准适用于对A1类多模光纤和B类单模光纤波长色散的测量和成品光纤光缆的商业性检验。 本部分与GB/T 15972.4-1998第8章相比主要变化如下：
——原正文中对每一咱试验方法的详细描述分别用附录的形式给出；
——将“脉冲时延法”改为“时域群时延谱法”；
——详细规定了方法D的具体试验方法和要求；
——将图文中的“校准光络”和“参考光纤”统一称为“参考光纤”；
——将“参考信号”改为“基准信号”；