GOALI: Integrated Synthesized Optical Sources

标题：集成合成光源这项研究的成功追求可能会导致第一个广泛可调谐的集成合成光源，它将更加稳定，并且比目前可用的组件具有更小的尺寸，重量和功率要求。光子和电子集成的结合将产生芯片级可调光源，不需要精确的温度控制或高输入功率来操作。该项目的GOALI合作伙伴Freedom Photonics LLC.打算将该设备的某些版本商业化，这可能会影响光学元件市场。新技术将在NSF-NNIN设施内开发，新的制造工艺将向学生和外部用户提供。pi致力于让高中生和本科生参与研究活动，包括暑期实习，以及STEM学习项目中代表性不足群体的学生。提出的研究旨在开发一种具有亚赫兹级精度的高集成度宽可调谐光频率合成器（OFS）。集成OFS是基于一个单片，4段，宽可调的激光偏移锁定到频率梳的任何一条线。通过光子和电子集成的结合，集成光锁相环（OPLL）技术可以获得亚hz级的精度。除了外部参考激光器、光电二极管和梳状发生器外，所有的光子学都将集成在单个InP光子IC上。可调谐激光器的输出可以通过在带有射频偏移源的梳线之间调谐激光，并交替选择不同的梳线来调谐整个梳线。通过这种方法，sub- hz级的相对频率精度以及sub-kHz线宽应该是可能的。如果成功，这项工作将对一系列新光学技术的光学系统设计产生变革性影响。

Title: Integrated Synthesized Optical SourcesThe successful pursuit of this research could lead to the first widely-tunable, integrated synthesized optical sources, which would be much more stable, and have smaller size, weight and power requirements than components currently available. The combination of photonic and electronic integration will produce a chip-scale tunable sources that do not require accurate temperature control or high input power to operate. The project's GOALI partner, Freedom Photonics LLC., intends to commercialize some version of the proposed device that may impact the optical components marketplace. The new technology will be developed within the NSF-NNIN facility and the new fabrication processes will be made to students and outside users. The PIs have a strong commitment to involving high school, and undergraduate students in research activities, including summer internships, and students of under-represented groups in STEM learning programs.The proposed research aims to develop a highly-integrated widely-tunable optical frequency synthesizer (OFS) with sub-Hz-level accuracy. The integrated OFS is based on a monolithic, 4-section, widely-tunable laser offset-locked to any one of the lines of a frequency comb. By employing a combination of photonic and electronic integration, sub-Hz-level accuracy can be obtained with an integrated optical phase-locked loop (OPLL) technology. All of the photonics, except for the external reference laser, the photodiodes, and the comb generator, will be integrated on a single InP photonic IC . The tunable laser's output can be tuned across the entire comb by tuning the laser between the comb lines with the RF offset source, and alternately selecting different comb lines. With this approach sub-Hz-level relative frequency accuracy, as well as sub-kHz linewidth, should be possible. If successful, the proposed work would have a transformative impact on the design of optical systems for a series of new optical technologies.