Improved Usage of Binary Diffractive Optical Elements in Ultrafast All-Optical Switching Modules
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概要
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In next generation large capacity photonic networks, the necessity of all-optical data processing is increased. Reviewing the author's previous experimental trial [R. Hainberger and T. Kamiya: Jpn. I. Appi. Phys. 39 (2000)1533] of all-optical switching modules employing both compound semiconductor saturable absorbers and binary diffractive optical elements, it is clear that further improvement of zone plates should be pursued by introducing wave-theoretical design. The previous formulation by the author's group [Y. Orihara, W. Klaus, M. Fujino and K. Kodate: AppI. Opt. 40 (2001) 5877] was extended, applied to the analysis of the old design, and was used for a new design of all-optical switching modules. Through the evaluation of efficiency and spot-size, it was revealed that the minimum feature size of 1 micrometer in fabrication allows both small spot-size and high efficiency, suitably applicable to all-optical switching modules operating at a wavelength of 1.55 micrometers.
- 2002-07-30
著者
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Komai Yuki
Department Of Mathematical And Physical Sciences Japan Women's University
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Kodate Kashiko
Department Of Electronic Engineering Faculty Of Engineering University Of Tokyo
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KAMLYA Takeshi
National Institution for Academic Degrees
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Kamiya Takeshi
National Institution for Academic Degrees
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