Abstract
We have demonstrated a 134 W, octave-spanning, continuous-wave (CW) supercontinuum (SC), which is generated within a random Raman fiber laser (RRFL) pumped by Ytterbium (Yb) fiber sources. A piece of 600-m long standard telecom fiber with a zero-dispersion wavelength (ZDW) around 1.3 μm was used to provide Raman gain and random distributed feedback for the RRFL. High power SC is excited when the wavelength of the cascade RRFL reaches the ZDW. 20-dB spectrum ranging from 852 nm to 2055 nm is achieved with an average power spectral density over 111 mW/nm. To the best of our knowledge, this is the highest power of CW SC source ever reported. Moreover, two different 1064 nm Yb-doped fiber sources were used as pumps, which are seeded with a normal oscillator and amplified spontaneous emission, respectively. The difference of the SC generated by the two pump sources are compared in detail, including spectrum, efficiency, and relative intensity noise.
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