Photorefractive Quantum Wells for Lightwave Technology

9414800 Nolte提出的研究目标是从光折变量子阱中创建全息材料。预期的关键突破是将光折变量子阱发展成不对称法布里-珀罗结构。这些多波干涉器件将具有光折变量子阱技术的最大性能，并将使这些器件可用于光波光纤通信系统中需要高灵敏度和高速全息材料的新型飞秒光谱全息应用。此外，还将展示几种具有独特光折变特性的新设计，例如大大简化制造要求的单片全半导体量子阱器件，在需要光学放大和自泵浦相位共轭的应用中可能获得净增益的反射几何器件中寻找受激后向散射，以及用于脉冲光源的快速自由载流子光折变器件。＊＊＊

9414800 Nolte The objective of the proposed research is to create holographic materials from photorefractive quantum wells. The key breakthrough anticipated is the development of photorefractive quantum wells into asymmetric Fabry-Perot structures. These multi-wave interference devices will have the maximum performance possible for photorefractive quantum well technology, and will make these devices available for new femtosecond spectral holography applications that require high-sensitivity and high-speed holographic materials for use in lightwave fiber communications systems. In addition, several new designs will be demonstrated that have unique photorefractive features, such as monolithic all- semiconductor quantum well devices that considerably ease fabrication requirements, the search for stimulated backscattering in reflection-geometry devices that may achieve net gain for applications requiring optical amplification and selfpumped phase- conjugation, and fast free-carrier photorefractive devices for use with pulsed light sources. ***