Patent ID: 8184988

Claim:
An optical modulating device with frequency multiplying technique for electrical signals comprising: an electrical signal generator, which generates a first electrical signal, said first electrical signal is split through a signal splitter; a mixer, which receives said first electrical signal from said signal splitter and a second electrical signal, then generates and sends out a mixed data signal; a first phase shift device, which receives and shifts phase of said mixed data signal, then sends out a first shifted signal; a second phase shift device, which receives and shifts phase of said first electrical signal from said signal splitter, then sends out a second shifted signal; an optical signal generator, which generates a input optical signal; an integrated electro-optic modulator (Mach-Zehnder modulator), which receives said input optical signal, said mixed data signal, said first shifted signal, said second shifted signal and said first electrical signal, then modulates said input optical signal into a frequency multiplying output optical signal that carries said first electrical signal and said second electrical signal; and a signal splitter, which receives said first electrical signal from said electrical signal generator, then sends said first electrical signal to said mixer and said second phase shift device separately; wherein said frequency multiplying output optical signal is a frequency doubling output optical signal.