Bias voltage control method, bias voltage control device, modulator, and storage medium

Abstract

The embodiment of the invention discloses a bias voltage control method. The method comprises the following steps: acquiring a bias voltage control point at a first moment corresponding to each phasemodulation electrode in a plurality of phase modulation electrodes of a modulator; obtaining a first locking coefficient corresponding to each phase modulation electrode; based on the bias voltage control point and the first locking coefficient of the first moment corresponding to each phase modulation electrode, determining the bias voltage adjustment amount of each phase modulation electrode corresponding to the second moment, and obtaining a plurality of bias voltage adjustment amounts of the plurality of phase modulation electrodes corresponding to the plurality of second moments; and performing bias control on the modulator based on the bias adjustment amounts at the plurality of first moments. The embodiment of the invention further discloses a bias control device, a modulator and astorage medium.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a bias voltage control method, a bias voltage control device, a modulator and a storage medium. Background technique [0002] At present, coherent optical communication technology is used for medium and long-span transmission. In coherent optical communication, in order to realize the control of the working bias voltage of the modulator, in the related art, a perturbation signal is generally applied to the phase modulation electrode of the modulator, and the amplitude of the output signal of the modulator is directly detected or the output optical power P out Perform frequency domain analysis to obtain the working bias; the above method is directly based on the Fourier transform of the output optical power P corresponding to the input signal out Frequency domain analysis is performed to obtain the working bias voltage; however, this way of calculating the working bias voltage ha...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiments of the present invention expect to provide a bias voltage control method, a bias voltage control device, a modulator, and a storage medium, which effectively solve the problem of high computational complexity and the impact on hardware performance in the way of calculating the working bias voltage in the related art. Highly demanding problems improve the signal processing efficiency, reduce the performance requirements of the hardware platform, and improve the control accuracy of the working bias voltage

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