Supercontinuum generation employing the high-energy wave-breaking-free pulse in a compact all-fiber laser system |
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Authors: | Wang L R Liu X M Gong Y K Mao D Duan L N |
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Institution: | 1.State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, 710119, China ; |
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Abstract: | Supercontinuum (SC) generation is experimentally achieved in a compact all-fiber laser system by using high-energy wave-breaking-free
dissipative soliton (DS) pulses. The pulses exhibit Gaussian (rectangular) shape profiles in spectral (temporal) domain, which
is even reversed of the typical rectangular-spectrum DSs. With the increase of pump power the pulse duration enlarges dramatically
whereas the bandwidth and peak power of the pulse keep almost constant, which enables the pulse to accumulate much higher
energy during the pulse-shaping process. When inputting the amplified pulse into the single-mode fiber, SC with excellent
flatness is generated with the spectral range from about 1550 to 1700 nm. Broader SC with the bandwidth of even larger than
1000 nm can also be generated by this kind of pulse in the near-zero-dispersion-flattened photonic-crystal fiber through strong
nonlinear effects. |
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Keywords: | |
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