Apparatus, circuits and methods for reducing mismatch in an electro-optic modulator

A method, comprising:

• splitting an input optical signal into a first optical signal and a second optical signal;
• generating a plurality of electrical signals, wherein the plurality of electrical signals have different phase delays;
• controlling a first phase of the first optical signal, based on at least one of the plurality of electrical signals, to generate a first phase-controlled optical signal;
• controlling a second phase of the second optical signal, based on at least another one of the plurality of electrical signals, to generate a second phase-controlled optical signal;
• and
• controlling the different phase delays of the plurality of electrical signals.

A method, comprising:

• splitting an optical signal into a first optical signal and a second optical signal;
• controlling a first phase of the first optical signal to generate a first phase-controlled optical signal by providing the first optical signal to a first waveguide arm;
• and
• controlling a second phase of the second optical signal to generate a second phase-controlled optical signal by providing the second optical signal to a second waveguide arm, wherein:
• each of the first and second waveguide arms comprises a plurality of curved segments, and
• a first curved segment in the plurality of curved segments of the first waveguide arm is shorter than a second curved segment in the plurality of curved segments of the second waveguide arm by a length difference that is equal to a total length difference between the first waveguide arm and the second waveguide arm.