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|1. (WO2017152811) OPTICAL NOISE REMOVAL CIRCUIT, OPTICAL RECEIVER, AND OPTICAL CHIP|
|Applicants:||KUANG-CHI INTELLIGENT PHOTONIC TECHNOLOGY LTD.
|Title:||OPTICAL NOISE REMOVAL CIRCUIT, OPTICAL RECEIVER, AND OPTICAL CHIP|
The present invention relates to an optical noise removal circuit, an optical receiver, and an optical chip. The optical noise removal circuit comprises a noise filtering unit and a comparison unit. An input end of the noise filtering unit receives electrical signals of an optical-to-electrical conversion unit. The noise filtering unit is used for filtering out a noise electrical signal among the electrical signals that is generated due to ambient light, and outputting a target pulse signal at an output end. A first input end of the comparison unit is coupled to an output end of the noise filtering unit to receive the target pulse signal. The comparison unit is used for outputting a digital signal according to comparison between the target pulse signal and a reference voltage. By implementing the present invention, the quality of optical signal reception can be effectively improved.