SBIR Phase II: Wavelength-Division-Multiplexed Surface-Emitting Lasers with Two-Dimensional Photonic Lattice Outcouplers

这个小型企业创新研究第二阶段项目计划开发一种商业上可行的单片波分复用(WDM)双波长光栅-输出耦合表面发射半导体(GSE)激光器，发射波长接近1310 nm。第一阶段展示了交叉光栅结构的WDM GSE激光器的概念，该激光器从普通的二维光子晶格(2D-PL)孔径发射两个波长，间隔9 nm，可以有效地耦合到多模和单模光纤。该项目还将开发一种低成本的组件，可以将来自一个或多个2D-PL GSE激光器的2、4和8个独立波长直接耦合到单根光纤，而不需要多路复用器。开发这些激光器所需的知识需要材料、光学、光栅、纳米结构、半导体加工、热转移、高速电子、包装、系统和电信方面的专业知识。结合边缘发射激光器(高功率、可靠材料、低电压、经验证的使用)和垂直腔面发射激光器(低成本、晶片级测试、简单封装、高集成能力)的理想特性，提出的高级研究是一项创新的光子学技术，在电信、信息处理、数据通信、光纤到企业和家庭、科学和医疗仪器以及计算中具有广泛的应用。该项目的一个更广泛的影响是以非常低的成本实现非常高的数据速率，并消除了将光纤部署到桌面和(或)家庭(或更靠近家庭)的障碍，实现了商业、远程学习、娱乐和计算的超高带宽连接。2D-PL GSE激光器的每个波长目前可以以3.125 Gbps的速率进行调制，并且有可能达到10Gbps，从而使来自单个发射器组件的单个光纤的数据速率达到6.25Gbps到80Gbps。这项研究工作将为参与该项目的学生提供更好的教育体验。学生将通过实验和理论工作加深对材料、光学、光栅、纳米结构、半导体加工、热转移、封装、电子和电信的理解。

This Small Business Innovation Research Phase II Project proposes to develop a commercially viable monolithic Wavelength Division Multiplexed (WDM) two-wavelength Grating-Outcoupled Surface-Emitting semiconductor (GSE) laser emitting near 1310 nm. Phase I demonstrated the concept of WDM GSE lasers in a cross-grating configuration emitting two wavelengths separated by 9 nm from a common two-dimensional photonic lattice (2D-PL) aperture that can be efficiently coupled to multi- and single-mode fiber. A low-cost package that can couple 2, 4 and 8 independent wavelengths from one or more 2D-PL GSE lasers directly to a single fiber without multiplexers will also be developed on this program. The knowledge required to develop these lasers requires expertise in materials, optics, gratings, nanostructures, semiconductor processing, thermal transfer, high-speed electronics, packaging, systems and telecommunications. Combining the desirable traits of both edge emitting lasers (high power, reliable material, low voltage, use of proven) and vertical cavity surface-emitting lasers (low cost, wafer level testing, simple packaging, high integration ability), the advanced research proposed is an innovative photonics technology that has broad applications in telecommunications, information processing, data communications, fiber to the business and home, scientific and medical instrumentation, and computations. A broader impact of this project is the realization of very high data rates at very low cost, and the elimination of barriers to deploying fiber to the desktop and to (or closer to) the home, enabling ultra high bandwidth connections for business, distance learning, entertainment, and computing. Each wavelength of the 2D-PL GSE laser can presently be modulated at 3.125 Gbps and has the potential for 10 Gbps, enabling data rates of 6.25 to 80 Gbps over a single fiber from a single transmitter package. This research effort will provide an enhanced educational experience for students working on this project. Students will gain an increased understanding of materials, optics, gratings, nanostructures, semiconductor processing, thermal transfer, packaging, electronics, and telecommunications through both experimental and theoretical work.