Self-imaging through incoherent to coherent conversion

Maria del Carmen Lasprilla Alvarez; Alexandra Agra Amorim; Myrian C. Tebaldi; Nestor A. Bolognini

doi:10.1117/1.600700

1 May 1996 Self-imaging through incoherent to coherent conversion

Maria del Carmen Lasprilla Alvarez, Alexandra Agra Amorim, Myrian C. Tebaldi, Nestor A. Bolognini

Optical Engineering, Vol. 35, Issue 5, (May 1996). https://doi.org/10.1117/1.600700

The self-imaging phenomenon is realized by utilizing an incoherent to coherent converter. For this purpose, a photorefractive BSO crystal that becomes uniformly birefringent due to an external applied voltage is employed. Then, an incoherently illuminated one-dimensional grating that locally modulates the induced birefringence is registered. In the readout process, a linearly polarized plane wave from a He-Ne laser is utilized. The ellipticity of the light exiting the crystal will be determined according to the local birefringence. Then, after passing through a polarizer, the coherent output will reproduce the incoherent input. In this way, under free propagation, coherent replicas of the grating will be obtained.

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Maria del Carmen Lasprilla Alvarez, Alexandra Agra Amorim, Myrian C. Tebaldi, and Nestor A. Bolognini "Self-imaging through incoherent to coherent conversion," Optical Engineering 35(5), (1 May 1996). https://doi.org/10.1117/1.600700

Published: 1 May 1996

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