IEC 61290-1-2:2026 establishes rigorous, harmonized procedures for measuring key parameters of optical amplifiers (OAs)—including optical fiber amplifiers (OFAs) based on rare-earth doped fibers or Raman effect, semiconductor optical amplifiers (SOAs), and planar optical waveguide. IEC 61290-1-2:2026 establishes rigorous, harmonized procedures for measuring key parameters of optical amplifiers (OAs)—including optical fiber amplifiers (OFAs) based on rare-earth doped fibers or Raman effect, semiconductor optical amplifiers (SOAs), and planar optical waveguide. The February 2026 cycle has brought a significant advancement to the world of Telecommunications and Audio and Video Engineering with the publication of the third edition of IEC 61290-1-2:2026, covering modern test methods for optical amplifiers. This new release is critical for stakeholders in. Test methods is classified in these ICS categories: IEC 61290-1-2:2026 applies to all commercially available optical amplifiers (OAs) and optically amplified sub-systems. It applies to OAs using optically pumped fibres (optical fibre amplifiers (OFAs) based on either rare-earth doped fibres or on the Raman effect), semiconductors (semiconductor. committees (IEC National Committees). To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications.