Calibration method, device, equipment and computer-readable storage medium of a coherent optical module

Abstract

The present invention discloses a calibration method, device, equipment, and computer-readable storage medium for a coherent optical module. The method includes: obtaining a first curve relationship and a second curve relationship; the first curve relationship indicates that the coherent optical module corresponds to a receiving end The relationship between the power gain reported voltage and the optical power of the receiving end within the optical power range; the second curve relationship represents the relationship between the coherent optical module corresponding to the target setting voltage within the optical power range of the receiving end and the optical power of the receiving end; based on the first curve relationship and the second The curve relationship determines the first optical power; the first optical power is used to divide the receiving end optical power range into two ranges; the calibration method of the coherent optical module is determined based on the first optical power; the calibration method includes: in the coherent optical module When the receiving end optical power is in the first range, use the first curve relationship to calibrate the coherent optical module; when the receiving end optical power of the coherent optical module is in the second range, use the second curve relationship to calibrate the coherent optical module The module is calibrated.

Description

technical field [0001] Embodiments of the present invention relate to the field of optical fiber technology, and in particular to a calibration method, device, equipment and computer-readable storage medium for a coherent optical module. Background technique [0002] For traditional coherent optical modules, the total optical power at the receiving end is generally reported by the receiving end photodiode (Photo Diode, PD) for calibration. For miniaturized modules, an external Tap Photo Detector (TAP-PD) cannot be accommodated. , may use the PD integrated in the receiver of the module for reporting and calibration. For module receiving receivers, some manufacturers may not integrate internal PDs. At this time, optical power calibration cannot rely on PDs. How to ensure the linearity of the reporting curve obtained in the entire optical power range of the receiving end without depending on the PD, and improve the reporting accuracy in the entire optical power range. For thi...

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