Enhancement of multiple four-wave mixing via cascaded fibers with discrete dispersion decreasing Project supported by the National Key Scientific Instrument and Equipment Development Project, China (Grant No. 2014YQ510403) and the National Natural Science Foundation of China (Grant Nos. 61377039 and 51527901). |
Output spectra of multiple FWM generated in (a) 94-m-long fiber A plus 106-m-long fiber B, (b) 106-m-long fiber B plus 94-m-long fiber A, (c) 200-m-long fiber A, and (d) 200-m-long fiber B. |