Increasing the Precision of Reproduction of the Unit of Average Power of Optical Radiation in Fiber-Optic Transmission Systems by Improving the Algorithms and Automating Measurement Processes

A Standard of the Units of Average Power and Attenuation of Optical Radiation for Fiber-Optical Communications and Data Transmission Systems

“…The operating program of the system provides several algorithms for conducting measurement operations using different optical systems. The development of these algorithms was directed, in particular, to increasing the accuracy of measurements of increments of the output signals, operating under the optical or electrical load of the PSM.PM calorimetric converter, while excluding its zero component from the additive output signal [2,3]. The need to develop algorithms is due to the fact that the operation of the calorimetric converter, as a rule, is accompanied by a drift of the zero level of its output signal during the course of fairly prolonged multiple measurements.…”

Metrological Assurance of Measurements of the Average Power of Optical Radiation in Fiber-Optic Communication and Information Transmission Systems

“…A two-channel optical circuit with control of instability of optical radiation in the process of dissemination of the unit of average power to verifi ed working standards is implemented in GET 170-2006 [9]. In the standard for Belarus a single-channel optical circuit based on the stability of the average power of radiation in the process of dissemination of the unit of average power to verifi ed working standards was tested and successfully applied, thus eliminating the need for control instruments for the measurement of the average power of radiation.…”

“…All that we have said fi nds refl ection in the algorithms of a whole series of successive measurement operations implemented in practical applications, the totality of which assures completeness and exhaustiveness of the process of reproduction of the unit by means of the newly created reference systems [9].…”

“…By the end of this interval of time, the transducer's output signal will differ from the theoretical maximum or minimum on the relaxation curve by less than 6·10 -6 , i.e., it may be classifi ed as a negligibly small deviation. Through the use of newly developed algorithms for carrying out measurement processes (for example, electrical calibration of reference calorimeters), which constitute several series of repeated measurements of the input parameters of the electrical current and voltage and additive output electrical signals of measurement information, it became possible to eliminate from each ith additive signal in a series of n values of additive signals of a transducer functioning under an electrical load the transducer's null component and thus to estimate the net increment in the signal induced exclusively by the action of an electric current [9]. Numerous results of several series of measurements of the conversion ratio of the average power of a constant electric current, an estimate of the standard deviation of the average power of which in 10 observations in a series with strict control over the state of the environment in a reference compartment attained 0.0009-0001%, and in a more natural regime, exceeded 0.004-0.006%.…”