IEC-61291-1 Complete Document History
Optical amplifiers - Part 1: Generic specification

Complete Current Edition:
   EDITION 4.0 - Part 1: Generic specification - Feb. 1, 2018

Obsolete Revision Information:
   EDITION 3.0 - Optical amplifiers - Part 1: Generic specification - April 1, 2012
   2ND EDITION - PART 1: GENERAL SPECIFICATION, OPTICAL AMPLIFIERS - Aug. 1, 2006
   1ST EDITION - OPTICAL FIBRE AMPLIFIERS, PART - July 1, 1998