Optical module, manufacturing method thereof, and optical transmitter

An optical module comprising:

• a first optical coupler including at least one input port and a first output port and a second output port;
• a second optical coupler including at least a first input port and a second input port, and at least one output port;
• a first optical waveguide, one end of which is coupled to the first output port and the other end of which is coupled to the first input port;
• a second optical waveguide one end of which is coupled to the second output port and the other end of which is coupled to the second input port;
• a first electrode provided on the first optical waveguide;
• a second electrode provided on the second optical waveguide;
• a short electrode shorter than the first and second electrodes and provided on the second optical waveguide;
• and
• a first high-frequency connector and a second high-frequency connector;
• wherein, the short electrode provided on the second optical waveguide is provided with a second high-frequency signal from the second high-frequency connector;
• and
• the first electrode provided on the first optical waveguide is provided with a first high-frequency signal from the first high-frequency connector.