Dynamic beam lasers based on coherent beam combining

Asaf Nissenbaum, Nina Armon, Eyal Shekel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


Steering a laser beam is a well-studied method for attaining welds with better quality in reducing pores, spatters, and other defects. However, the steering frequency, the possible shapes, and the total power are limited. Mechanical scanners have speed and power restrictions; diffractive optical elements (DOE) and multi-core lasers have limited shape flexibility. Civan's Dynamic Beam laser provides a High Power (up to 100 kW), Single Mode, Continuous Wave output with the ability to create arbitrary beam shapes and do beam steering at a speed of 10s of MHz. The Dynamic Beam is derived from using the Coherent Beam Combining (CBC) technology and the Optical Phased Array (OPA) technology. This combination allows to dynamically tailor beam parameters to the required application. The benefits of the Dynamic Beam are significant in many applications such as welding, cutting, drilling, and additive manufacturing. This is due to its ability to have better control of the melt pool and the keyhole, which both affect the quality of products. In cases where the melt pool is not stable, spatter and pores occur and damage the pieces.

Original languageEnglish
Title of host publicationFiber Lasers XIX
Subtitle of host publicationTechnology and Systems
EditorsCesar Jauregui-Misas, V. R. Supradeepa
ISBN (Electronic)9781510648333
StatePublished - 2022
Externally publishedYes
EventFiber Lasers XIX: Technology and Systems 2022 - Virtual, Online
Duration: 20 Feb 202224 Feb 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceFiber Lasers XIX: Technology and Systems 2022
CityVirtual, Online

Bibliographical note

Publisher Copyright:
Copyright © 2022 SPIE.


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