Symmetric highly efficient (∼0 dB) wavelength conversion based on four-wave mixing in quantum dot optical amplifiers

被引：99
|
作者：
Akiyama, T [1 ]
Kuwatsuka, H [1 ]
Hatori, N [1 ]
Nakata, Y [1 ]
Ebe, H [1 ]
Sugawara, M [1 ]
机构：
[1] Fujitsu Labs Ltd, Atsugi, Kanagawa 2430197, Japan
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2002年 / 14卷 / 08期
关键词：
four-wave mixing; quantum dot; semiconductor optical amplifier; wavelength conversion;
D O I：
10.1109/LPT.2002.1021995
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Conversion efficiency to longer wavelengths in four-wave-mixing-based wavelength conversion in optical semiconductor amplifiers is generally much lower than that in the opposite direction. This study demonstrates experimentally that this feature is drastically improved, and the asymmetry between conversion directions is eliminated by using quantum dots in the active layer. We attribute this to a reduction in linewidth enhancement factor due to the discreteness of the electron states in quantum dots.
引用
收藏
页码：1139 / 1141
页数：3
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