Research Report on Hybrid Integrated Ultra-Narrow Linewidth Self-Injection Locking 780nm Laser Background In modern technology, narrow linewidth lasers play an essential role in various applications, including classical and quantum sensing, ion trap systems, positioning/navigation/timing systems, optical clocks, and microwave frequency synthesizers...

Observation of Inter-Band Kelly Sidebands in Coupled Ring Comb Microcombs Background Introduction Kelly Sidebands (KSS) are special dispersive waves that appear in mode-locked systems and have been extensively studied in fiber lasers. However, due to the shorter path lengths of integrated photonics microresonators, their generation in integrated mi...