Improvement of speckle noise suppression in digital holography by rotating linear polarization state |
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| Authors: | Wen Xiao Jing Zhang Lu Rong Feng Pan Shuo Liu Fanjing Wang and Aga He |
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| Institution: | School of Instrumentation Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, China |
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| Abstract: | An improved polarization recording approach to reduce speckle noise in digital holography is proposed. Multiple off-axis holograms are obtained by rotating the linear polarization state of both illumination and reference wave simultaneously. By averaging the intensity fields, the speckle noise in the reconstructed images is well suppressed. Statistical evaluation of the experimental results shows the effectiveness and improvement of the proposed method. |
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