Nonlinear switching behaviors in a compact all-semiconductor optical-amplifier Sagnac interferometer device

被引：0
|
作者：
Lee, JH [1 ]
Wang, DA
Kiang, YW
Chiang, HJ
Huang, DW
Yang, CC
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10764, Taiwan
[2] Natl Taiwan Univ, Grad Inst Electroopt Engn, Taipei 10764, Taiwan
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 1999年 / 35卷 / 10期
关键词：
gain saturation; nonlinear optical loop mirror; optical switch; semiconductor optical amplifier;
D O I：
暂无
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：
Nonlinear switching effects in a GaAs-AlGaAs all-semiconductor optical-amplifier loop device with a multimode interference waveguide amplifier (MMIWA) for closing the loop was investigated experimentally and numerically. The miniaturized device, designed to imitate a nonlinear optical loop mirror (NOLM), has a latency more than one hundred times smaller than that of a NOLM. Also, because it used an MMIWA for replacing a coupler in a conventional NOLM, its operation was quite different from that previously reported. In CW signal operation, the nonlinear switching behavior resulted from the combined effect of nonlinear coupling in the MMIWA and the amplification and lateral field redistribution of the signal through the loop structure. Efficient self-switching and cross-polarized switching were observed. Numerical simulations showed consistent trends in varying device parameters.
引用
收藏
页码：1469 / 1477
页数：9
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