Development of Chip-Based Frequency Combs for Spectral and Timing Applications.

摘要

This report describes research results in developing the technology for the generation of a broadband parametric frequency combs with flexible operating wavelengths and comb spacing. The research showed the flexibility in operating wavelengths with demonstration of comb generation with a 1-mm pump. Technology was further developed at 1.5 mm and showed that with appropriate waveguide engineering, the comb can span an octave of bandwidth, which is crucial for self-stabilization. Additionally, through modification of the resonator design, results showed the ability to generate combs with various spacing ranging from 200 GHz to 20 GHz. Finally, combs were utilized to generate a high-repetition-rate, ultrafast pulse source.