Patent ID: 11868021
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The method for manufacturing an optical modulator according to claim 4, wherein
the step of preparing the Mach-Zehnder modulator includes a step of preparing the Mach-Zehnder modulator including the first arm waveguide, the second arm waveguide, the first electrode, the second electrode, a third electrode, and a fourth electrode,
the third electrode is disposed on the first arm waveguide,
the fourth electrode is disposed on the second arm waveguide, and
the step of acquiring the relationship between the voltage and the phase change amount includes
a step of acquiring a relationship between the voltage applied to the first electrode and the phase change amount of the light propagating through the first arm waveguide, based on a relationship between a voltage applied to the third electrode and the phase change amount of the light propagating through the first arm waveguide, and
a step of acquiring a relationship between the voltage applied to the second electrode and the phase change amount of the light propagating through the second arm waveguide, based on a relationship between a voltage applied to the fourth electrode and the phase change amount of the light propagating through the second arm waveguide.