Optical fibres - Measurement methods and test procedures. Beat length Ingestion-build-183098 BS EN 60601-1: 2006

BS EN 60601-1: 2006

Testing procedures can determine how a particular type of packaging will perform when exposed to various real-world conditions and demands

in which each port is either an optical fibre or fibre optic connector

BS 4481-2 is the second part of the BS 4481 multi-series that discusses bonded abrasive products

It is applicable to both periodic measurements and the calibration of automated measuring systems permanently installed on stacks

Optical fibres - Measurement methods and test procedures. Beat length Ingestion-build-183098 BS EN 60601-1: 20061 Scope This part of IEC 60793 defines test methods for both the phase beat length, and the group beat length. These two parameters are defined differently, and will give different results depending on the type of polarization maintaining (PM) fibre. The phase beat length is the relevant parameter for the fibres ability to maintain a high extinction ratio. This is described in more details in Annexes A and B.