TUNABLE CASCADED MACH-ZEHNDER INTERFEROMETER STRUCTURES

Abstract: cascaded mach-zehnder interferometer (cmzi) structures comprising electrically resistive heaters provisioned across the stages so as to enable improved filter wavelength control. in embodiments, cmzi heater power supply control is made a linear function by scaling the number of heater elements between the stages in proportion with the magnitude of the arm differential (e.g., �l, �l) for the corresponding stage.

Inventor(s): Saeed Fathololoumi, David Chak Wang Hui, Monireh Moayedi Pour Fard, Jacob Levy

CPC Classification: G01B9/02049 (Interferometers)

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