0
BEAM DEFLECTORS

Intensity variations using a quantized spatial light modulator for nonmechanical beam steering

[+] Author Affiliations
Emil Ha¨llstig, Lars Sjo¨qvist, Mikael Lindgren

Swedish Defence Research Agency, Department of Laser Systems, Box 1165, SE-581?11, Linko¨ping, Sweden E-mail: emil@foi.se

Opt. Eng. 42(3), 613-619 (Mar 01, 2003). doi:10.1117/1.1543175
History: Received Jun. 24, 2002; Revised Aug. 21, 2002; Accepted Sep. 4, 2002; Online March 07, 2003
Text Size: A A A

A liquid-crystal spatial light modulator (SLM) can be used to alter the phase of the wavefront to achieve a deflection or a change in the shape of a laser beam. Ideal blazed gratings have perfect diffraction efficiency, and all the light is deflected. Encoded onto a pixelated spatial light modulator, however, the spatial limitations and phase quantization result in a stepped, nonideal blazed grating and decreased diffraction efficiency. The far-field intensity distribution was measured for different deflection angles using 4 and 32 phase levels. The result has been analyzed and used to construct a simple model of the studied SLM. Simulations of the far field based on this model show good agreement with the experimental results. © 2003 Society of Photo-Optical Instrumentation Engineers.

Figures in this Article
© 2003 Society of Photo-Optical Instrumentation Engineers

Citation

Emil Ha¨llstig ; Lars Sjo¨qvist and Mikael Lindgren
"Intensity variations using a quantized spatial light modulator for nonmechanical beam steering", Opt. Eng. 42(3), 613-619 (Mar 01, 2003). ; http://dx.doi.org/10.1117/1.1543175


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
 
Your Session has timed out. Please sign back in to continue.
Sign In to Access Full Content

Tables

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement

Buy this article ($18 for members, $25 for non-members).
Sign In