Optical power detection apparatus and method
A technology of optical power detection and power, which is applied in the field of optical communication, can solve problems such as the inability to make good use of digital amplifiers, narrow detection range, and low voltage resolution, so as to facilitate debugging and fault location, improve sampling accuracy, and ensure reliability Effect
Inactive Publication Date: 2008-11-05
ZTE CORP
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The invention discloses an optical power detecting device and method, pertaining to the optical communication field. The method of the invention includes: after the photoelectric conversion of the light to be measured, executing subtraction arithmetic to the output voltage magnitude of the light to be measured and the known voltage magnitude, to obtain a difference value; amplifying the difference value, and combining the known voltage magnitude to calculate for obtaining the optical power of the light to be measured. The technical scheme of the invention greatly improves the sampling accuracy, simultaneously has relative simple circuit structure, which is convenient for debugging and fault locating; in addition, the technical scheme of the invention remarkably improves the power testing accuracy and ensures the optical power testing reliability.
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