Three Operation Modes for Tb/s All-Optical Switching With Intersubband Transitions in InGaAs/AlAs/AlAsSb Quantum Wells

被引：8
|
作者：
Fedoryshyn, Yuriy [1 ]
Ma, Ping [1 ]
Faist, Jerome [2 ]
Kaspar, Peter [1 ]
Kappeler, Roman [1 ]
Beck, Mattias [2 ]
Holzman, Jonathan F. [3 ]
Jaeckel, Heinz [1 ]
机构：
[1] ETH, Elect Lab, CH-8092 Zurich, Switzerland
[2] ETH, Inst Quantum Elect, CH-8093 Zurich, Switzerland
[3] Univ British Columbia Okanagan, Integrated Opt Lab, Sch Engn, Kelowna, BC V1V 1V7, Canada
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2012年 / 48卷 / 07期
关键词：
All-optical switching; intersubband transitions; quantum wells; ridge waveguides; ABSORPTION; SATURATION; ENERGY;
D O I：
10.1109/JQE.2012.2193558
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：
We report on ultra-fast intersubband transitions in strained coupled double InGaAs/AlAs/AlAsSb quantum wells in terms of modeling, fabrication, and characterization of the structures. Our experimental results demonstrate the capability of the studied structures to perform Tb/s all-optical switching in the telecommunication wavelength range employing exclusively intersubband transitions. The coupled double quantum wells embedded into a ridge-waveguide can be explored as an inline single-wavelength all-optical switch at 1430 or 1730 nm, with response times of 400fs and 2 ps, respectively. These structures can also be operated in a dual-wavelength mode, which allows a straightforward separation of signal pulses at 1730 nm from control pulses at 1430 nm by relaxed spectral filtering at the output of the device.
引用
收藏
页码：885 / 890
页数：6
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