光二分路器规格参数值递变特性的分析与研究

Analysis and Research of Gradation Characteristics on Specifications Parameter Value of Two-Output Optical Distributor

给出了确定规格型光二分路器规格参数值的条件和依据,即对光二分路器任何一个规格型号,分光比规格(标准)值与适用范围值的确定应满足的条件是,分光比与规格值产生的偏差引起光节点信号电平的变化量均应在最大允许变化范围内。基于此,分析研究了光二分路器分光比规格值和带宽的变化特性。结果表明,在给定的分光比区域,规格值数目完全取决于光节点信号电平最大允许变化量ΔP。当ΔP一定时,规格值的大小、分布或者说间隔、分光比带宽都依次按相同比例系数10-|ΔP|/5递变。

This paper provides the condition and basis to determine the specifications parameters values of normalized two-output optical distributor,the condition to determine the standard value and normal range value of optical divide ratio is that signal level variation at the optical node caused by the optical divide ratio deviation is within the allowed range.The variation characteristics on the optical divide ratio standard value and width of the two-output optical distributor are analyzed and researched.The studies have shown that number of specifications in a certain region is decided by the maximum permissible variation ΔP of signal level variation at the optical node.The standard value and its distribution and width are gradational in the same scaling factor 10-｜ΔP｜/5,when ΔP is a constant value.