Patent ID: 11863238
Assignee: nan
Field: Optics (Instruments)
Classification: CPC H  G | IPC G  H

Claim 9:
10. An optical to electrical (OE) conversion system comprising an integrated receiver chip, a transimpedance amplifier, and a digital signal processor (DSP), the transimpedance amplifier and the digital signal processor each being in electrical communication with the integrated receiver chip, the integrated receiver chip comprising:
at least one optical input port disposed at a first end of the integrated receiver chip;
a polarization splitter disposed after the at least one optical input port;
a first and a second dispersion compensators each optically connected to one of the at least one optical input port, the first and the second dispersion compensators each being adapted to selectively induce a dispersion on an optical signal propagating through the dispersion compensator; and
a first and a second single polarization waveguide photodetectors optically connected to the first and the second dispersion compensators, respectively, the first and second single polarization waveguide photodetectors being electrically connected in parallel;
wherein, when an optical signal is launched into the integrated receiver chip at one of the at least one optical input port, the first and the second dispersion compensators induce a selected dispersion on the optical signal, the optical signal being absorbed by each of the first and the second single polarization waveguide photodetectors to generate corresponding photocurrents, such that the photocurrents from the first and the second single polarization waveguide photodetectors are configured to be combined into a combined photocurrent that is transmitted to the transimpedance amplifier, the transimpedance amplifier being configured to convert the combined photocurrent to a voltage signal; and
wherein the DSP is configured to monitor inducing of the dispersion on the optical signal by digitally processing a bit error rate of the voltage signal being outputted from the transimpedance amplifier, the DSP being further configured to transmit a control signal to each of the first and the second dispersion compensators for selectively adjusting a value of the induced dispersion and the integrated receiver chip is configured for direct detection.