GOALI/EAGER: Investigation of Bulk Fabrication of 1.3um Quantum Dot Distributed Feedback Lasers for Uncooled and Analog Sources

半导体激光器对现代通信非常重要，因为它们在光纤上传输信息时提供了巨大的带宽。量子点（QD）激光器（基于小块材料）与标准技术（基于薄层材料的量子威尔斯（QW））相比具有显著的优势，包括更大的温度不敏感性和固有的低芯片。 然而，QD激光器还没有被采用到商业激光发射器中，主要是因为还没有在技术上重要的波长范围内的全息制造的、无损耗的单模QD器件被证明。 目的是证明这些器械的制造具有商业可行性技术。 由于这项工作将与Ortel-Emcore（一家半导体激光器公司）直接合作完成，这些设备的成功制造将立即导致对它们在电信应用中的采用进行调查。 使用无损耗器件，可以最终评估单模QD激光器的固有性能和基本限制。这种用于单模激光器的混合生长方法将成为量子点材料广泛应用于电信市场的一种技术。 更广泛的影响量子点材料的许多优点表明，它的应用将优于量子阱激光器上级。 这项技术将推动低成本、高带宽的光通信链路。 密切的工业-学术合作，包括Ortel科学家在宾厄姆顿举行的研讨会，Ortel PI和当地行业的研讨会，以及Ortel-Emcore研究生的现场工作，是这个项目的宝贵组成部分，对参与的学生来说将是极好的经验。

ObjectiveSemiconductor lasers are of great importance to modern communication because of the enormous bandwidth they provide in transmitting information over optical fibers. Quantum dot (QD) lasers (based on small clumps of material) haves significant advantages over the standard technology (which are quantum wells (QWs) based on thin layers of material), including much greater temperature-insensitivity and inherently low chip. However, QD-lasers have not been adopted into commercial laser transmitters largely because no holographically-fabricated, loss-free, single-mode QD-devices at the technologically-important wavelength ranges have yet been demonstrated. The objective is to demonstrate the fabrication of these devices with commercially-feasible techniques. Intellectual MeritBecause the work will be done in direct collaboration with Ortel-Emcore (a semiconductor laser company), successful fabrication of the devices will lead immediately to investigation of their adoption into telecommunications applications. With loss-free devices, the inherent performance and fundamental limits of single-mode QD lasers can be finally evaluated. This proposed mixed-growth method for single mode lasers will be an enabling technology for the widespread adoption of QD material into the telecommunications market. Broader ImpactsThe many advantages of QD material suggest applications where it would be superior to quantum well lasers. This technology will drive lower-cost, high-bandwidth optical communications links. The close industrial-academic collaboration, including seminars by Ortel scientists given at Binghamton, seminars by the PI at Ortel and local industries, and on-site work by a graduate student at Ortel-Emcore, are a valuable component to this project and will be excellent experience for the students involved.