| 高精度可编程光衰减器的设计 |
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| 引用本文： | 余志强,辛耀平,黄涌,罗璧函,张洪波,李小军.高精度可编程光衰减器的设计[J].广西通信技术,2010(2):29-32. |
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| 作者姓名： | 余志强 辛耀平 黄涌 罗璧函 张洪波 李小军 |
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| 作者单位： | 中国电子科技集团公司第34研究所,广西,桂林,541004 |
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| 摘 要： | 介绍了一种高精度可编程光衰减器的设计方法。光衰减由16位DAC芯片驱动MEMSVOA（Variable Optical Attenuator）来实现，通过功率监测实现自校准。采用带有16位ADC的C8051系列MCU以及对数放大器，保证电路简洁可靠，测试结果达到预定指标。
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| 关 键 词： | 光衰减 v0A 功率监测 自校准 |
Design of High Precision Programmable Optical Attenuator |
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| YU Zhi-qiang,XIN Yao-ping,HUANG Yong,LUO Bi-han,ZHANG Hong-bo,LI Xiao-jun.Design of High Precision Programmable Optical Attenuator[J].Guangxi Communication Technology,2010(2):29-32. |
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| Authors: | YU Zhi-qiang XIN Yao-ping HUANG Yong LUO Bi-han ZHANG Hong-bo LI Xiao-jun |
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| Affiliation: | (The 34th Institute of China Electronics and Technology Group Corporation, Guilin Guangxi 541004) |
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| Abstract: | Introduced a design approach for a high precision programmable optical attenuator. It used a MEMS VOA （Variable Optical Attenuator） which was driven by a 16 bits DAC to attenuate optical power, and monitor the power in real time for calibrating attenuated value. A C8051 MCU with 16 bits ADCs and a logarithmic amplifier were used to buildup a concise and reliable circuit. The testing result is according to the pre-concerted performance. |
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| Keywords: | VOA |
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