18 February 2013 Supercontinuum generation with femtosecond pulse fiber amplified VECSELs
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Abstract
We present a mode-locked VECSEL emitting 400-fs pulses at a 3 GHz repetition rate at 1040 nm, amplified by a cascaded ytterbium doped fiber amplifier system to an average power of 40 W. The 3-ps duration amplified pulses are recompressed to their original 400-fs duration using a high-throughput transmission grating compressor. The recompressed pulses are used to generate supercontinuum with two different photonic crystal fibers (PCFs); an all-normal dispersion PCF and a PCF with a zero-dispersion wavelength at 1040 nm, creating spectra with 20 dB bandwidths of 200 nm with 3.9 W average power and 280 nm with 2.5 W average power respectively.
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C. Robin Head, Ho-Yin Chan, James S. Feehan, David P. Shepherd, Shaif-ul Alam, Anne C. Tropper, Jonathan H. V. Price, Keith G. Wilcox, "Supercontinuum generation with femtosecond pulse fiber amplified VECSELs", Proc. SPIE 8606, Vertical External Cavity Surface Emitting Lasers (VECSELs) III, 860608 (18 February 2013); doi: 10.1117/12.2004240; https://doi.org/10.1117/12.2004240
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