Diameter–divergence Product
Author: the photonics expert Dr. Rüdiger Paschotta (RP)
Definition: product of the diameter (at a beam waist) and the divergence angle of a laser beam
DOI: 10.61835/wm4 Cite the article: BibTex plain textHTML Link to this page LinkedIn
The diameter–divergence product of a laser beam is the product of the beam diameter (i.e. twice the beam radius) at the beam waist and the beam divergence angle in the far field. The higher the diameter–divergence product, the lower is the laser beam quality.
A more frequently used quantity is the beam parameter product.
More to Learn
Encyclopedia articles:
Share this with your network:
Follow our specific LinkedIn pages for more insights and updates: