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TUNABLE INFRARED MODULATOR AND SWITCH USING STARK SHIFT IN STEP QUANTUM-WELLS

被引：122
作者：
KARUNASIRI, RPG
MII, YJ
WANG, KL
机构：
[1] Device Research Laboratory, Department of Electrical Engineering, University of California, Los Angeles
来源：
IEEE ELECTRON DEVICE LETTERS | 1990年 / 11卷 / 05期
关键词：
D O I：
10.1109/55.55258
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：
A tunable infrared modulator and/or switch using intersubband Stark shift in a step quantum well is fabricated. The device utilizes the intersubband absorption and the large change of separation between energy levels in the step quantum well under an applied electric field. The incident infrared beam on the device is either absorbed or transmitted depending on the energy separation of the levels and thus the modulation can be achieved by adjusting the energy levels with an applied electric field. The extremely short lifetime of the intersubband transition makes this modulator suitable for application in high-speed long-wavelength optical communications. © 1990 IEEE
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页码：227 / 229
页数：3
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