High-power laser beam and focus transverse intensity distribution measuring instrument

Qiang Li; Hong Lei; Tiechuan Zuo

doi:10.1117/12.401750

5 October 2000 High-power laser beam and focus transverse intensity distribution measuring instrument

Qiang Li, Hong Lei, Tiechuan Zuo

Proceedings Volume 4223, Instruments for Optics and Optoelectronic Inspection and Control; (2000) https://doi.org/10.1117/12.401750
Event: Optics and Optoelectronic Inspection and Control: Techniques, Applications, and Instruments, 2000, Beijing, China

Abstract

Using the method of rotating hollow probe, the measuring system which can directly measure laser transverse intensity distribution of high power laser beams/focus for laser processing is studied. The mathematical and physical models of measured laser beams/focus propagation in hollow probe are founded. According to the calculation, the system parameters, including pinhole diameter of hollow probe, dimension of propagation channel, dot number of sampling, are discussed. A new measuring system is designed. The measuring of high power laser beams/focus by this system is realized. The calculation results are satisfied with the measuring results. The instrument can measure CO₂ and YAG laser, measured power larger than 10kW, maximal measured power density up to 10⁷w/cm², maximal diameter 60mm, laser focus minimal diameter smaller than 0.5mm.

Citation Download Citation

Qiang Li, Hong Lei, and Tiechuan Zuo "High-power laser beam and focus transverse intensity distribution measuring instrument", Proc. SPIE 4223, Instruments for Optics and Optoelectronic Inspection and Control, (5 October 2000); https://doi.org/10.1117/12.401750

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available