Patent ID: 7693430

Claim:
A burst optical receiver, comprising: an optical signal inlet adapted for receiving a burst optical signal; an optical-electrical signal converter electrically connected with said optical signal inlet to transform said burst optical signal into an electric signal; an AC coupling network which is electrically communicated with said optical-electrical signal converter, and shifts said baseline of said electric signal to the middle of said electric signal, wherein said AC coupling network comprises a first, a second, and a third high pass single-time-constant (STC) circuitries; an integrator positive feedback network which is electrically communicated with said AC coupling network, and recurrently modifies said electric signal from said AC coupling network in such a manner to eliminate distortion introduced by said AC coupling network, and to bring a transfer function of said burst optical receiver into a real variable function; and a pre-amplifying network electrically connecting between said optical-electrical signal converter and said AC coupling network and a buffer amplifying network electrically connecting between said AC coupling network and said integrator positive feedback network, wherein said first high pass STC circuitry is electrically connected between said optical-electrical signal converter and said pre-amplifying network to perform AC-coupling before said electric signal is fed into said pre-amplifying network, wherein said second high pass STC circuitry is electrically connected between said pre-amplifying network and said buffer amplifying network, and wherein said third high pass STC circuitry is electrically connected between said pre-amplifying network and said buffer amplifying network, in such a manner that said electric signal from a complementary output of said pre-amplifier is in reverse phase of said electric signal from said integrator positive feedback network.