Abstract
Abstract We present an experimental study on supercontinuum generation by combining a clad-pumped Er/Yb co-doped fiber amplifier (EYDFA) and a highly nonlinear photonic crystal fiber (HNL-PCF). By using the nonlinear polarization rotation technique, a stable femtosecond optical pulse seed signal with a central wavelength of 1556.36 nm and a spectral line width of ∼5.6 nm has been obtained. Then, this pulsed seed signal is amplified by the EYDFA, the amplified pulse, which, with the broaden spectrum, propagates in the HNL-PCF. The 20 dB bandwidth of ∼520 nm from 1230 to 1750 nm is obtained.
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