Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

A statistical model for cladding diameter of optical fibres



C. M. Wang, Timothy J. Drapela


The National Institute of Standards and Technology has developed a contact micrometer for accurate measurement of the outer diameter of optical fibres. The contact micrometer is used to measure reference fibres that are artefacts used by the telecommunications industry for calibrating their own measurement systems. We present a model for diameters measured by the contact micrometer. Based on this model, the probability distribution of the diameters is derived and two diameter estimates are presented. We illustrate and compare the diameter estimates using simulated data.


optical fibers


Wang, C. and Drapela, T. (2003), A statistical model for cladding diameter of optical fibres, Metrologia, [online], (Accessed April 17, 2024)
Created March 31, 2003, Updated October 12, 2021