光纤标准G.651

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光纤和光端机应用在图像传输领域里主要是为了解决两个问题:一是传输距离,一是环境干扰。这是由于光纤的显著特点所决定的。 容许频带宽,传输容量大。由信息理论知道,载波频率越高通信容量越大,因目前使用的光波频率比微波频率高103~104倍,所以通信容量约可增加103~104倍。光端机可以同时在一根光纤上传输传输多路图像、双向音频、 多路各种类型的双向数据接口(包括RS232、RS485、以太网等);特别是针对数字非压缩高清视频信号,光纤传输是最佳的选择。
Superseded by a more recent version CONTENTS Recommendation G 651(03/93) Superseded by a more recent version Superseded by a more recent version Recommendation g 651 CHARACTERISTICS OF A50/125 m MULTIMODE GRADED INDEX OPTICAL FIBRE CABLE (Malaga- Torremolinos, 1984, amended at Melbourne, 1988 and at Helsinki, 1993) considering recommends Fibre characteristics 1.1 Geometrical characteristics of the fibre Core diameter 1.1.2 Cladding diameter 1.3 Concentricity error Recommendation G 651(03/93) Superseded by a more recent version Superseded by a more recent version 1.1.4 Non-circularity 1.1. 4.1 Core non-circularity 1. 1.4.2 Cladding non-circularity 12 Optical properties of the fibre 1.2.1 Refractive index profile 1. 2. 2 Numerical aperture 1.3 Material properties of the fibre 1.3.1 Fibre materials 1.3.2 Protective materials 1.3.3 Prooftest level Factory length specifications Recommendation G651(03/93) Superseded by a more recent version Superseded by a more recent version Attenuation coefficient Baseband response 2.2.1 Modal distortion bandwidth: amplitude response 2.2.2 Modal distortion bandwidth: phase response 2.2.3 Chromatic dispersion Recommendation G 651(03/93) Superseded by a more recent version Superseded by a more recent version Elementary cable sections 3.1 Attenuation Recommendation G651(03/93) Superseded by a more recent version Superseded by a more recent version 3. 2 Baseband response(overall -3 dB optical bandwith) B B B B 3.2.1 Modal distortion bandwidth B B Recommendation G 651(03/93) Superseded by a more recent version Superseded by a more recent version Annex a Meaning of the terms used in the recommendation alternative test method (ATM) A2 attenuation coefficient A.3 bandwidth (of an optical fibre) chromatic dispersion A.5 chromatic dispersion coefficient cladding cladding mode stripper A. 8 core core area Recommendation G651(03/93) Superseded by a more recent version

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Haiyoung 挺不错的资源,好
2014-12-11
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笔仙 有用。解决了问题。非常感谢分享
2014-09-04
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