High-power supercontinuum generation in a nested linear cavity involving a CW Raman fiber laser

Optimized All-Fiber Supercontinuum Source at 1.3 $\mu \hbox{m}$ Generated in a Stepwise Dispersion-Decreasing-Fiber Arrangement

“…When the input power amounts to 4.73 W the spectral broadening starts to take place around 1315 nm. Earlier results have been reported on similar methods for the generation of cw SC emission [1], [2], [7], [21] which make use of a linear cavity configuration to shift the pump frequency into the anomalous dispersion region of the non-linear medium. It is worth to notice that, according to our results, a linear cavity is not strictly necessary to generate the spectral emission which will seed the SC broadening.…”

Low-cost continuous-wave supercontinuum generation using multimode 975 nm pump lasers

“…For this approach, there are two types of pumping scheme. One pumping scheme is to use CW fibre Raman lasers [8][9][10] or singlemode 980/1480 nm pump lasers [11,12]; and the other scheme is to use CW multimode 975 nm pump lasers [13]. Among these kinds of supercontinuum generation, using multimode 975 nm pump lasers is considered low-cost technology.…”