Optical modulator integrated laser element, optical modulation circuit, and optical modulator
AssigneeSumitomo Electric Device Innovations, Inc.
InventorHiroshi HARA
Life of this patent
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Abstract
An optical modulator integrated laser element includes a laser unit configured to output laser light, an optical modulator that includes a modulation electrode to which one differential signal is input as a positive-phase signal, and a dummy element unit to which another differential signal is input as a negative-phase signal. The optical modulator is connected between the one differential signal and a reference potential. The dummy element unit is connected between the another differential signal and the reference potential, and includes a resistive component and a capacitive component connected in parallel.
Claims12
An optical modulator integrated laser element, comprising:
- a laser unit configured to output laser light;
- an optical modulator including a modulation electrode to which one differential signal is input as a positive-phase signal;
- and
- a dummy element unit to which another differential signal is input as a negative-phase signal,
- wherein the optical modulator is connected between the one differential signal and a reference potential, and
- the dummy element unit is connected between the another differential signal and the reference potential, and includes a resistive component and a capacitive component connected in parallel.
An optical modulation circuit, comprising:
- a pair of transmission lines through which differential signals are transmitted;
- an optical modulator to which one differential signal of the differential signals is input as a positive-phase signal;
- and
- a dummy element unit to which another differential signal of the differential signals is input as a negative-phase signal,
- wherein the optical modulator is connected between one of the transmission lines and a reference potential, and
- the dummy element unit is connected between the another differential signal and the reference potential, and includes a resistive component and a capacitive component connected in parallel.
An optical modulator, comprising:
- an optical modulator including a modulation electrode to which one differential signal is input as a positive-phase signal;
- and
- a dummy element unit to which another differential signal is input as a negative-phase signal,
- wherein the optical modulator is connected between the one differential signal and a reference potential, and
- the dummy element unit is connected between the another differential signal and the reference potential, and includes a resistive component and a capacitive component connected in parallel.
Dependencies are inferred from the claim text.