Photonic Technologies (shanghai) Co., Ltd.

Shang Hu

Xuefeng Chen

Rui Bai

Xin Wang

Tao Xia

Wenjun He

Patrick Yin Chiang

Juncheng Wang

Wenzong Pan

Zhichun Wang

Yuanxi Zhang

Pei Jiang

Tingyu Yao

The present disclosure provides a hybrid-mode laser drive circuit and an optical emitting system. An equalizer circuit is configured to generate, according to a data signal and a clock signal, an equalization signal for compensating a hybrid-mode laser drive circuit; the hybrid-mode laser drive circuit is connected to an output end of the equalizer circuit, and is configured to generate a corresponding drive signal according to an output signal of the equalizer circuit, so as to drive a light emitting diode to generate a corresponding optical signal; a third current source is connected between a power supply voltage and an output end of the hybrid-mode laser drive circuit; an anode of the light emitting diode is connected to the output end of the hybrid-mode laser drive circuit and a cathode of the light emitting diode is connected to a power supply ground.

Hybrid-mode laser drive circuit and optical emitting system

The present disclosure provides a pulse generation module, and an optical communication transmitter system and a non-linear equalizing method thereof, the pulse generation module includes: a mode detector that outputs a corresponding effective detection signal after detecting a preset mode, a controller that generates a corresponding selection signal according to a jump mode, and an equalizing pulse generator that generates a corresponding equalizing pulse signal according to the effective detection signal and the selection signal. A jump mode of each piece of data in a data stream is detected, and a corresponding equalizing pulse signal is generated based on the detected jump mode, to compensate for nonlinearity of a laser driving signal. Information about a rising edge and a falling edge is determined by detecting a jump mode of data, a balanced current is provided for a particular purpose, and nonlinearity of a laser is compensated by current output.

Pulse generation module, and optical communication transmitter system and non-linear equalizing method thereof

An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.

Clock and data recovery circuit

Frequency detector, and clock and data recovery circuit including the frequency detector

Non-transitory machine readable medium for clock recovery

Apparatus and method for clock recovery based on non-non return to zero (non-NRZ) data signals

Frequency detector for clock recovery

Apparatus and method for clock recovery

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Shanghai, China

Shang Hu