公开(公告)号：US20230034936A1

公开(公告)日：2023-02-02

申请号：US17784104

申请日：2020-12-18

申请人： Molex, LLC

发明人： Kuen-Ting TSAI ,  Wei-Hung CHEN ,  Zuon-Min CHUANG ,  Yao-Wen LIANG

IPC分类号： H04B10/2513 ,  G02F1/21 ,  H04B10/524 ,  H04B10/54 ,  H04B1/69

摘要： An optical transmission device includes: a control module generate a control signal output which includes a slope adjust signal and a bias voltage offset adjust signal according to an input signal indicating a dispersion amount an electrical level adjust signal; a multi-level pulse amplitude modulator; and an asymmetrical optical modulator which is controlled by the slope adjust signal to be operated at one of a positive slope and a negative slope of a transfer function of the asymmetrical optical modulator itself, and is controlled by the bias voltage offset adjust signal of the control signal output to offset a bias voltage point of the asymmetrical optical modulator itself from a quadrature point of the transfer function, and modulates the multi-level pulse amplitude modulation signal to an optical signal to generate an optical modulate signal having a chirp.

公开(公告)号：US20210376934A1

公开(公告)日：2021-12-02

申请号：US17329211

申请日：2021-05-25

申请人： Molex, LLC

发明人： Kuen-Ting TSAI ,  Yao-Wen LIANG ,  Zuon-Min CHUANG ,  Wei-Hung CHEN

IPC分类号： H04B10/69

摘要： An optical receiving device includes a conversion module, a signal generation module and a control module. The conversion module performs photoelectric conversion and amplification on an optical signal to generate a photocurrent, the signal generation module provides a gain signal, performs transimpedance and amplification on the photocurrent according to an input signal indicating a preset output voltage swing to generate a voltage signal, and generates a measurement signal indicating an average optical power associated with the optical signal according to the photocurrent, the control module outputs a control signal which is variable to adjust a gain of the conversion module, so that a dynamic range of the conversion module changes as the gain of the conversion module itself changes.