Optical Transparency Induced by Periodic Modulation in a Passive Optical Coupler

We propose a scheme for the realization of optical transparency by using a periodically modulated optical coupler with losses in one waveguide. We discover that the increase of the transparency can be achieved only by varying the parameters of modulation, and such modulation-enhanced transmission is...

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Bibliographic Details
Published in:Chinese physics letters 2014-02, Vol.31 (2), p.48-51
Main Author: 罗小兵 刘荣玄 刘明华 余晓光 伍冬兰 胡强林
Format: Article
Language:English
Subjects:
Dissipation
Joining
Light transmission
Modulation
Phase transformations
Titanium dioxide
Waveguides
光学透明性
光耦合
周期性调制
无源
耗散系统
耦合装置
调制参数
透明度
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Summary:We propose a scheme for the realization of optical transparency by using a periodically modulated optical coupler with losses in one waveguide. We discover that the increase of the transparency can be achieved only by varying the parameters of modulation, and such modulation-enhanced transmission is the consequence of phase transition of the quasi-energy spectrum. Our findings offer an efficient way to manipulate light transmission in realistic dissipative systems.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/2/024202