Device for the correlation of optical beams

Details Device for the correlation of optical beams Device for the correlation of optical beams

G - Physics

02

F

345/11

G02F 1/00 (2006.01) G02F 1/01 (2006.01) G06E 3/00 (2006.01) H01S 3/102 (2006.01)

Patent

CA 2012965

ABSTRACT Correlation is obtained between optical beams having spatially modulated intensities by means of an active-glass window, one side of which is illuminated simultaneously by reading and pumping beams using at least one semi-transparent mirror to combine the beams. The reading beam is of radiation with a wavelength equal to that of the transition between intermediate and fundamental energy levels of the material of the window, and the pump beam is of radiation with a wavelength corresponding to the highest energy level of the material forming the active glass. The light beam leaving the window is modulated with a correlation between the reading and pumping beams.

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