Design of a variable optical attenuator with wavelength selectivity

Tsair Liang Tsai*, Jieh Chian Wu

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

1 引文 斯高帕斯(Scopus)

摘要

We propose a theoretical design of a high-speed wavelength-selective variable optical attenuator (VOA) constructed by a waveguide-type Raman amplifier and two directional couplers. The VOA can attenuate each incident WDM wavelength individually and simultaneously in a few tens of picoseconds by applying the corresponding pumping wavelength to the Raman amplifier. We define two operation modes, which may allow the attenuation ratio to decrease or increase by increasing the amplification rate of the Raman amplifier. The profile of the attenuation curves of the two operation modes can be flexibly determined by properly selecting the phase angles of the directional couplers. The guidelines to determine these phase angles of the two directional couplers are provided after the operational analyses.

原文英語
頁(從 - 到)331-336
頁數6
期刊Photonic Network Communications
19
發行號3
DOIs
出版狀態已出版 - 06 2010
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