New approaches for manufacturing refractive beam shapers

Sven Kiontke

doi:10.1117/12.741027

12 September 2007 New approaches for manufacturing refractive beam shapers

Sven Kiontke

Proceedings Volume 6663, Laser Beam Shaping VIII; 66630I (2007) https://doi.org/10.1117/12.741027
Event: Photonic Devices + Applications, 2007, San Diego, California, United States

Abstract

There are different ways to design and build beam shapers; generally, it is based on diffractive or refractive optical elements. Both solutions have different kinds of advantages and disadvantages. Diffractive designs are very sensitive to parameters like wavelength, nevertheless, they are in general easier to manufacture. The refractive design offers more flexibility in terms of wavelength. In general, there are two possibilities for manufacturing such refractive beam shapers, either on basis of spheres or on basis of aspheres. Concerning the production of aspheres there have always been strong limitations either in terms of the surface form - only a small deviation from best fit sphere/plano surface is possible - and/or in terms of surface accuracy. As fully discussed in literature it is necessary to increase form accuracy in case of using aspherical forms with small aspherical departures. In other words, the quality of the beam shaper does not necessarily improve by using aspherical forms with small aspherical departures. On the contrary, one has to increase the form accuracy of the beam shaper element in order to keep beam quality standards. Based on ten years of experience a technology has been developed that allows us manufacturing of optical surfaces in almost all kinds of forms, shapes and sizes. By now it is possible to produce aspherical forms both concave and convex, with strong departures from the best fit sphere as well as with inflection points from 4 to 200 mm in diameter. By now it is possible to manufacture aspherical surfaces with big departures while securing high accuracies. It is the purpose of this paper to give an understanding of how the refractive approach can be applied for the fabrication of aspherical beam shapers.

Citation Download Citation

Sven Kiontke "New approaches for manufacturing refractive beam shapers", Proc. SPIE 6663, Laser Beam Shaping VIII, 66630I (12 September 2007); https://doi.org/10.1117/12.741027

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Beam shaping

Manufacturing

Aspheric lenses

Lithium

Optical spheres

Optics manufacturing

Zoom lenses

Show All Keywords

Keywords/Phrases

Search In:

Publication Years