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

页码：885 / 890

页数：6