Reduction of optical noise

G - Physics – 01 – C

Patent

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G01C 19/72 (2006.01) H04B 10/18 (2006.01)

Patent

CA 2175921

A noise reducer for reducing the results in the system output signal of optical noise introduced into an optical subsystem therein, having a phase modulator, by a source through obtaining a noise representation signal used to offset the noise components in the signal obtained from the output of the optical subsystem. This noise representation signal is not delayed in the obtaining thereof by any more than half the delays of the waves emitted from the source in reaching the optical subsystem output.

Réducteur de bruit destiné à réduire les effets dans le signal de sortie système du bruit optique introduit dans un sous-système optique, présentant un modulateur de phase, par une source, par l'obtention d'un signal de représentation de bruit utilisé pour compenser les composantes de bruit dans le signal obtenu en sortie du sous-système optique. L'obtention de ce signal de représentation de bruit n'est retardée de pas plus de la moitié des retards des ondes émises par la source pour atteindre la sortie du sous-système optique.

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