Patent ID: 11947237
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. The semiconductor Mach-Zehnder optical modulator according to claim 4, wherein:
the first and second output side lead-out lines are bent in a direction intersecting a direction in which the first and second arm waveguides extend in a plane of the dielectric layer, and
in a bent portion of the first and second output side lead-out lines, the at least one semiconductor layer is disposed such that a center point of the at least one semiconductor layer in the direction perpendicular to a propagation direction of the modulation signal is disposed at an outer peripheral side of the bent portion of the first and second output side lead-out lines with respect to a midpoint between the first and second output side lead-out lines in the direction perpendicular to the propagation direction of the modulation signal.