Phase modulators
Phase modulators modulate the phase of an optical signal as it travels through the phase shifter waveguide. These phase shifters can be thermal or electro-optic. Electro-optic phase shifters based on the plasma effect (current injection in or depletion of a P(I)N junction) have a parasitic amplitude modulation.
Phase modulator trace templates
Three trace templates for phase modulator are predefined:
PhaseShifterWaveguideTemplate: a generic base class for defining various types of phase modulators (PN junction, thermo-optic, …)LateralPNPhaseShifterTemplate: a template for regular lateral PN junction based phase modulatorsLongitudinalPNPhaseShifterTemplate: a template for longitundinal, interdigited PN junction based phase modulators
Generic phase shifter waveguide trace template. |
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PN or PIN junction phase shifter with a lateral junction. |
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PN or PIN junction phase shifter with a longitudinal (interdigited) junction. |
Phase modulator
Straight Phase Modulator PCell. |