2X2 MACH-ZEHNDER INTERFEROMETRIC SWITCH BASED ON HETERO-N-I-P-I QUANTUM-WELLS

被引:4
作者
LEIJTENS, X
YOFFE, GW
HAVERKORT, JEM
KAROUTA, F
BRUBACH, J
EIJKEMANS, T
KAUFMANN, LMF
SMIT, MK
STEGEMANN, JAA
ZHU, YC
WOLTER, JH
机构
[1] COBRA Interuniversity Research Institute, 5600 MB Eindhoven
关键词
D O I
10.1063/1.113692
中图分类号
O59 [应用物理学];
学科分类号
摘要
A 2×2 Mach-Zehnder interferometric switch has been developed employing 3 dB multimode interference (MMI) couplers and laterally contacted hetero-n-i-p-i quantum wells as the active material providing refractive index changes. Switching over a 4π range between the cross state and the bar state with an on/off ratio of 17:1 has been observed. A record voltage-length product for switching is observed of less than 1 V mm. By exploiting the quadratic nature of the quantum confined Stark effect, a differential switching voltage as low as 0.2 V mm is observed in the push-pull configuration.© 1995 American Institute of Physics.
引用
收藏
页码:2736 / 2738
页数:3
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