We have demonstrated a record output power of ∼72W, octave-spanning, nearly single-mode, continuous-wave supercontinuum with a bandwidth of ∼1050nm using standard telecom fiber as the nonlinear medium in an all-fiber architecture. We have utilized the recently proposed nonlinear power combining architecture by which power scaling is achieved using multiple independent Ytterbium lasers operating at different wavelengths. In this Letter, Raman conversions in the fiber assist in combining multiple input laser lines into a single wavelength which then undergoes supercontinuum generation. The architecture is based on the recently proposed grating-free, cascaded Raman lasers based on distributed feedback. Here all Raman conversions are well seeded, thereby enhancing the efficiency of supercontinuum generation to ∼44%. In this Letter, we have obtained power spectral densities (PSDs) of >3mW/nm from 850 to 1350 nm and a high PSD of >100mW/nm from 1350 to 1900 nm. Here we have also investigated the power-combined supercontinuum generation for different pump wavelength combinations demonstrating the flexibility of this technique.

中文翻译：

---

使用带功率组合光纤激光器泵浦的标准电信光纤，产生跨度连续波超连续谱，并具有创纪录的功率。

我们已经证明了使用标准电信光纤作为全光纤架构中的非线性介质，记录的输出功率约为72W，跨度为八度，接近单模连续波超连续谱，带宽约为1050nm。我们已经利用了最近提出的非线性功率组合架构，通过该架构，可以使用工作在不同波长的多个独立的Y激光器来实现功率缩放。在这封信中，光纤中的拉曼转换有助于将多条输入激光线组合成一个波长，然后产生超连续谱。该体系结构基于最近提出的基于分布式反馈的无光栅级联拉曼激光器。在这里，所有拉曼转化都得到了良好的播种，从而将超连续谱的产生效率提高到约44％。在这封信中，我们已经获得了从850到1350 nm的> 3mW / nm的功率谱密度（PSD）和从1350到1900 nm的> 100mW / nm的高PSD。在这里，我们还研究了针对不同泵浦波长组合的功率组合超连续谱生成，证明了该技术的灵活性。