Ultrafast 1.55 &mgr;m all‐optical switching using low‐temperature‐grown multiple quantum wells
作者:
R. Takahashi,
Y. Kawamura,
H. Iwamura,
期刊:
Applied Physics Letters
(AIP Available online 1996)
卷期:
Volume 68,
issue 2
页码: 153-155
ISSN:0003-6951
年代: 1996
DOI:10.1063/1.116131
出版商: AIP
数据来源: AIP
摘要:
Low‐temperature grown surface‐reflection all‐optical switching has been demonstrated with ultrafast photoresponse (1.5 ps), low switching energy (2 pJ), high‐contrast (13 dB), polarization independence, and wide operation wavelength range in the 1.55 &mgr;m band using low‐temperature‐grown Be‐doped strained InGaAs/InAlAs multiple quantum wells. The combination of low‐temperature growth and Be‐doping contributes to the ultrafast photoresponse. Additionally, the introduction of compressive strain and a mirror with 1% reflectivity greatly enhances optical nonlinearities. ©1996 American Institute of Physics.
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