High-speed programmable optical attenuator

被引：0

作者：

Riza, NA ^{[1
]}

Yaqoob, Z ^{[1
]}

机构：

[1] Univ Cent Florida, Sch Opt, Ctr Res Educ Opt & Lasers, Photon Informat Proc Syst Lab, Orlando, FL 32816 USA

来源：

ADVANCES IN OPTICAL INFORMATION PROCESSING IX | 2000年 / 4046卷

关键词：

D O I：

10.1117/12.391937

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A high-speed programmable optical attenuator (POA) is introduced that can provide high dynamic range and high resolution attenuation control. An acousto-optic Bragg cell has been used to realize the desired attenuator. Various practical architectures have been proposed to prove the concept. A typical acousta-optic deflector (AOD) based design offers a dynamic range of 46.11 dB. The average resolution is 3.08 dB/volt whereas the best resolution achieved is 0.39 dB/volt. The response time of the AO attenuator is in the sub CLS regime, and was observed as low as 0.175 mu s. The polarization dependent loss (PDL) was about 0.7 dB, whereas the excess losses were about 1.5 dB.

引用

页码：96 / 100

页数：5

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