 Introduction to Optical Fibers, dB, Attenuation and Measurements by Cisco

Online text: www.cisco.com/c/en/us/support/docs/optical/synchronous-digital-hierarchy-sdh/29000-db-29000.html

Institutional issuer: Cisco. No personal author is identified in the inspected technical note.

The revision history identifies version 1.0 as the initial release on 20 April 2005; the page header also labels that date as its update date.

Cited passages: What is a Decibel?; Base 10 Logarithm Rules; Power/Voltage Gains; Optical Fiber Structure, Fig. 1; Understand Insertion Loss; Calculate a Power Budget; Revision History: 1.0, 20-Apr-2005, Initial Release.