Optical fibres - Part 2-60: Product specifications - Sectional specification for category C single-mode intraconnection fibres
Abstract
The general requirements defined in IEC 60793-2 apply to these fibres. Specific requirements that are common to these fibres are found in the body of this text. Particular requirements for individual fibre types or applications are defined in Annexes A, B, C and D, which refer to normative family specifications. These family specifications are distinguished based on optimum transmission wavelengths and nominal Mode Field Diameter (MFD), which affects splice loss. For each family specification, there are two sub-categories that are distinguished on the basis of the cladding diameter and other related attributes. The conventional nominal cladding diameter of 125 m is augmented with the reduced cladding type product with a nominal diameter of 80 m. These are distinguished with the suffixes: “ 125” or “ 80”. For example C1 fibre can be selected as either C1 125 or C1 80. The transmission characteristics of the two cladding diameter choices should be the same. For each family specification except C1, there are two sub-categories that are distinguished on the basis of transmission characteristics that relate to MFD. To denote these sub-categories, a " a" or " b" suffix is added, for lower or higher MFD. In general, the fibres can be optimised for either splice loss or macro-bend loss using MFD as a main variable. A C2 fibre with 80 m cladding diameter and lower MFD is designated as C2 80 a. Fibres for the C1 125 family specification can be selected fom category B1.1 or B1.3 single-mode fibres and are suitable for use with any category B single-mode fibre at wavelengths from 1 280 nm to 1 625 nm. Fibres for the C2 and C3 family specifications are optimized at nominal wavelengths of 1 310 nm and 1 550 nm respectively for connection to any category B single-mode fibre. Fibres for the C4 family specification are optimized for transporting optical amplifier pump light at 980 nm or higher.
Begin
2023-07-12
Planned document number
DIN EN IEC 60793-2-60
Project number
02231699
