Acta Optica Sinica, Volume. 7, Issue 7, 606(1987)
A modified method of using computer-generated hologram In fabricating concave holographic gratings
Using a computer-generated hologram as a compensator to fabricate concave holographic gratings is more flexible in both aberration correction and wavelength selection in comparison with traditional method. In this paper a method of defocusing filtering with a cylindrical wave front used as a reference beam is discussed. With this method, the space-bandwidth product of GGH is obviously increased, thus greatly increasing the range of usage. Using such CGH compensators, 12001/mm concave holographic gratings, both type III and IV,have been, fabricated. Experiment results are preranfced.
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CHENG HUILING, WU MINXING, CHIN KUOFAN, WU JUQIU, SU YI. A modified method of using computer-generated hologram In fabricating concave holographic gratings[J]. Acta Optica Sinica, 1987, 7(7): 606