Quantum-Noise Propagation in Long, Traveling-Wave Semiconductor Amplifiers and Superluminescent Sources

拟议的研究是一个 合作项目M。 雷默在俄勒冈州大学 和T.位于俄勒冈州的工厂 大学 新的研究将解决 量子空间传播 行波光场 半导体放大器和 超辐射光源 实验将被设计为 探讨量子问题 噪音在没有 相当于腔激光器，以及 这将挑战理论家们 超越了典型的光子速率- 方程模型现在被应用于 类似的问题。广泛的目标 拟议的研究是， 从根本上理解 一些内在的观点 相互作用和机制 负责量子 设备使用的波动 半导体增益介质，以及 了解这些问题的含义 放大器和SLD的波动 操作 行波 将研究放大器， 具有长的（5- 10 mm）有源区， 由单个长 接触或多个（分段） 在单个晶片上的接触。 通过使用长放大器结构 将尝试观察 增益饱和的影响， 幅相耦合 光谱和强度 这些来源的波动。的 研究还将集中在是否 适当设计的饱和度 放大器可以导致强度 稳定一个 SLD。 OSU集团将提供 专业制造和 半导体表征 放大器和UO 小组将进行噪音 测量和理论 建模

The proposed research is a collaborative project between M. Raymer at the University of Oregon and T. Plant at Oregon State University. The new research will address spatial propagation of quantum light fields in traveling-wave semiconductor amplifiers and superluminescent sources. Experiments will be designed to probe questions concerning quantum noise in situations that are not equivalent to cavity lasers, and that will challenge theorists to go beyond the typical photon rate- equation models now being applied to similar problems. The broad goal of the proposed research is to understand from a fundamental viewpoint some of the intrinsic interactions and mechanisms responsible for the quantum fluctuations of devices using semiconductor gain media, and to learn the implications of these fluctuations for amplifier and SLD operation. Traveling-wave amplifiers will be studied which have long (5-10mm) active regions, defined by either a single long contact or multiple (segmented) contacts on a single wafer. By using long amplifier structures attempts will be made to observe the effects of gain saturation and amplitude-to-phase coupling on the optical spectrum and intensity fluctuations of these sources. The studies will also focus on whether saturation of a properly designed amplifier can lead to intensity stabilization of the output of a SLD. The OSU group will provide expertise in fabrication and characterization of semiconductor amplifiers and the UO group will carry out noise measurements and theoretical modeling.