HIGH-CONTRAST FABRY-PEROT OPTICAL MODULATOR USING QUANTUM-CONFINED STARK-EFFECT TUNING IN INGAAS-GAAS MULTIPLE-QUANTUM-WELL CAVITY

被引：5

作者：

CHEUNG, S ^{[1
]}

JAIN, F ^{[1
]}

SACKS, R ^{[1
]}

CULLEN, D ^{[1
]}

BALL, G ^{[1
]}

GRUDKOWSKI, T ^{[1
]}

机构：

[1] UNITED TECHNOL RES CTR,E HARTFORD,CT 06108

来源：

APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 03期

关键词：

D O I：

10.1063/1.110083

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Tunable Fabry-Perot modulators, consisting of strained InGaAs-GaAs multiple quantum well (MQW) layers, have been shown to yield a contrast over 1200: 1. Tuning is achieved by varying the index of refraction of the MQW layers forming the cavity using a quantum confined Stark effect. The mirrors are realized by AlAs-GaAs quarter wave lambda/4 dielectric stacks having 12 and 15.5 periods, respectively. The device has the potential of achieving even higher tunable contrast ratios when the number of periods of the lambda/4 mirrors are increased. A contrast ratio of 6000:1 has been achieved for a nontunable structure. Measured data on optical transmission and contrast ratio are presented for various wavelengths as a function of applied bias. Results of simulation of transmitted output are also discussed.

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页码：296 / 298

页数：3

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