TS EN ISO 11145

TS EN ISO 11145 is a vocabulary standard for laser technology, bringing together the basic terms, symbols and units of measurement used in the field. It supports a common language for describing laser beam properties and laser-related product characteristics, helping to enable clearer definitions and reproducible approaches to beam-parameter testing.

Why laser terminology needs its own structure

In laser engineering, the terminology does more than name a light source: it also covers how the beam behaves, how output is expressed, how wavelength and modes are described, and how measured parameters are interpreted. In general technical practice, consistent definitions and symbol usage improve comparability between laboratories and manufacturers, and they make technical documentation easier to read and verify.

Relationship to IEC 60825-1

The note in the document states that the hierarchical laser vocabulary defined here differs from that used in IEC 60825-1. This is presented as a matter of different standardization purposes rather than a contradiction. TS EN ISO 11145 therefore focuses on conceptual clarity and consistent measurement language, while not aiming to mirror the safety-oriented terminology framework used in laser safety standards.

This standard is a foundational reference for anyone who needs a shared technical language for lasers and laser-related equipment, including designers, test personnel and technical authors. Its scope is centered on terminology, symbols and measurement units; it does not present a product-specific installation recipe or a safety-class-specific application method.