Type-Ⅱ micro-comb generation in a filter-driven four wave mixing laser [Invited]

作者：HUALONG BAO; ANDREW COOPER; SAI T.CHU; D**E J.MOSS; ROBERTO MORANDOTTI; BRENT E.LITTLE; MARCO PECCIANTI; ALESSIA PASQUAZI

来源：Photonics Research, 2018, 6(05): 99-105.

We experimentally demonstrate the generation of highly coherent Type-II micro-combs based on a microresonator nested in a fiber cavity loop, known as the filter-driven four wave mixing(FD-FWM) laser scheme.In this system, the frequency spacing of the comb can be adjusted to integer multiples of the free-spectral range(FSR) of the nested micro-resonator by properly tuning the fiber cavity length. Sub-comb lines with single FSR spacing around the primary comb lines can be generated. Such a spectral emission is known as a "Type-II comb".Our system achieves a fully coherent output. This behavior is verified by numerical simulations. This study represents an important step forward in controlling and manipulating the dynamics of an FD-FWM laser.

• 单位
  电子科技大学