Abstract
We investigate multiwavelength-pumped optical frequency combs (OFCs) based on a new kind of coupling systems - a biconical microfiber coupler (MFC) combined with a fiber laser. Compared with other comb generations, this device possesses the advantages of an easy implementation and of achieving tunable pump wavelengths, which would increase the flexibility of the OFC generation. In essence, the adjustable cascaded four-wave mixing (FWM) process at the beginning stage of the frequency comb generation arouses different forms of OFCs. The proposed MFC coupling system holds promising applications in optical filtering, sensing, mode-switching and frequency combs.
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