Spatial filtering of IR laser diodes by holographic technique

Patrick Pilot; Tigran V. Galstian

doi:10.1117/12.406383

15 December 2000 Spatial filtering of IR laser diodes by holographic technique

Patrick Pilot, Tigran V. Galstian

Proceedings Volume 4087, Applications of Photonic Technology 4; (2000) https://doi.org/10.1117/12.406383
Event: 2000 International Conference on Application of Photonic Technology (ICAPT 2000), 2000, Quebec City, Canada

Abstract

Several methods are available for collimating and circularizing beams for laser diodes. However, most of them make use of expensive equipment. In the present paper, a method involving a holographic polymer-dispersed liquid crystal DOE is used to circularize and collimate a beam emerging from a low cost infrared (850 nm) laser diode. Different characteristics of the recorded hologram are presented, such as angular and position tolerance. The material's shrinkage is also investigated in the present work.

Citation Download Citation

Patrick Pilot and Tigran V. Galstian "Spatial filtering of IR laser diodes by holographic technique", Proc. SPIE 4087, Applications of Photonic Technology 4, (15 December 2000); https://doi.org/10.1117/12.406383

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