Mach-zehnder interferometer

Details Mach-zehnder interferometer Mach-zehnder interferometer

G - Physics

02

B

G02B 27/10 (2006.01) G01B 9/02 (2006.01) G02B 6/125 (2006.01) G02B 6/34 (2006.01)

Patent

CA 2053710

Abstract The invention relates to a Mach-Zehnder inter- ferometer comprising a symmetrical optical y- junction for dividing an input optical channel into two single-mode optical channel arms and another symmetrical optical y-junction for combining the optical channel arms into a multi- mode optical channel which is divided by an asymmetrical optical y-junction into two single- mode output optical channels. The wave modes of light propagated through the optical channel arms are, when combined to said multi-mode optical channel, substantially equal in phase at one selected wavelength or polarization of the light and substantially reverse in phase at another selected wavelength or polarization of the light. In this way the interferometer can be used for separating or combining wavelengths or polarizations. (Fig- 1)

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