The Experts below are selected from a list of 10266 Experts worldwide ranked by ideXlab platform
Jens Limpert - One of the best experts on this subject based on the ideXlab platform.
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relative amplitude noise transfer function of an yb3 Doped Fiber Amplifier chain
Optics Express, 2019Co-Authors: Philipp Gierschke, Thomas Gottschall, Cesar Jauregui, Jens LimpertAbstract:In this work we measure the frequency dependent transfer function of the amplitude noise for both the seed and pump power in an Yb3+-Doped Fiber Amplifier chain. In particular, the relative intensity noise transfer function of this Amplifier chain in the frequency range of 10 Hz – 100 kHz has been investigated. It is shown that the pump power noise of the pre-Amplifier stages is transformed into seed power noise for the next amplification stage. Crucially, the seed power noise in the frequency range of interest is strongly damped by the main-Amplifier. This, however, does not happen for the pump power noise. Thus, the noise of the pump of the last Amplifier stage is the factor with the strongest impact on the overall noise level of the system. Finally, useful guidelines to minimize the output amplitude noise of an Yb3+-Doped Fiber Amplifier chain are given.
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High-power femtosecond Yb-Doped Fiber Amplifier.
Optics express, 2002Co-Authors: Jens Limpert, Thomas Schreiber, Tina Clausnitzer, Karsten Zöllner, H.-j. Fuchs, Ernst-bernhard Kley, Holger Zellmer, Andreas TünnermannAbstract:We report on the generation of linearly chirped parabolic pulses with 17-W average power at 75 MHz repetition rate and diffraction-limited beam quality in a large-mode-area ytterbium-Doped Fiber Amplifier. Highly efficient transmission gratings in fused silica are applied to recompress these pulses down to 80-fs with an efficiency of 60%, resulting in a peak power of 1.7 MW. Power scaling limitations given by the Amplifier bandwidth are discussed.
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spm induced spectral compression of picosecond pulses in a single mode yb Doped Fiber Amplifier
Applied Physics B, 2002Co-Authors: Jens Limpert, T Gabler, A Liem, H Zellmer, Andreas TünnermannAbstract:In a Fiber Amplifier, spectral compression due to self-phase modulation is demonstrated for ultrashort pulses. We report the generation of near-transform-limited picosecond pulses with peak powers of several kW at a repetition rate of 74 MHz and diffraction-limited beam quality in a Yb-Doped Fiber Amplifier when seeding with a negative chirped pulse.
Theodore B. Norris - One of the best experts on this subject based on the ideXlab platform.
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power scalable compact thz system based on an ultrafast yb Doped Fiber Amplifier
Optics Express, 2006Co-Authors: Guoqing Chang, Charles J. Divin, Chi Hung Liu, Almantas Galvanauskas, Steven L Williamson, Theodore B. NorrisAbstract:A power-scalable approach for THz generation is demonstrated using optical rectification in GaP pumped by a high power ultrafast Yb-Doped Fiber Amplifier operating at 1.055 μm. A 120-MHz-repetition-rate pulse train of single-cycle THz radiation with 6.5 μW average power is generated using 10 W from a parabolic Fiber Amplifier. Analysis of the THz power scalability indicates that due to the unique advantages offered by ultrafast optical rectification in GaP and due to the power scalability of Fiber lasers, this approach has the potential to generate single-cycle THz pulse trains with average powers up to several mW.
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THz generation using high power ultrafast Yb-Doped Fiber Amplifier
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006Co-Authors: Guoqing Chang, Charles J. Divin, Chi Hung Liu, Almantas Galvanauskas, Theodore B. NorrisAbstract:Power scalable approach for THz generation is demonstrated using optical rectification in GaP pumped by a high power ultrafast Yb-Doped Fiber Amplifier. 1.8 muW THz radiation is obtained from 2.6 W pump power.
Guoqing Chang - One of the best experts on this subject based on the ideXlab platform.
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power scalable compact thz system based on an ultrafast yb Doped Fiber Amplifier
Optics Express, 2006Co-Authors: Guoqing Chang, Charles J. Divin, Chi Hung Liu, Almantas Galvanauskas, Steven L Williamson, Theodore B. NorrisAbstract:A power-scalable approach for THz generation is demonstrated using optical rectification in GaP pumped by a high power ultrafast Yb-Doped Fiber Amplifier operating at 1.055 μm. A 120-MHz-repetition-rate pulse train of single-cycle THz radiation with 6.5 μW average power is generated using 10 W from a parabolic Fiber Amplifier. Analysis of the THz power scalability indicates that due to the unique advantages offered by ultrafast optical rectification in GaP and due to the power scalability of Fiber lasers, this approach has the potential to generate single-cycle THz pulse trains with average powers up to several mW.
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THz generation using high power ultrafast Yb-Doped Fiber Amplifier
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006Co-Authors: Guoqing Chang, Charles J. Divin, Chi Hung Liu, Almantas Galvanauskas, Theodore B. NorrisAbstract:Power scalable approach for THz generation is demonstrated using optical rectification in GaP pumped by a high power ultrafast Yb-Doped Fiber Amplifier. 1.8 muW THz radiation is obtained from 2.6 W pump power.
Pu Wang - One of the best experts on this subject based on the ideXlab platform.
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Enhanced tunable Raman soliton source between 1.9 and 2.36 μm in a Tm-Doped Fiber Amplifier.
Optics express, 2017Co-Authors: Peng Wang, Hongxing Shi, Fangzhou Tan, Pu WangAbstract:We demonstrate generation of widely tunable femtosecond pulses by utilizing the soliton self-frequency shift effect in a Tm-Doped Fiber Amplifier, seeded by dispersion managed mode-locked Tm oscillator. The monochromatic soliton pulses with a duration of the order of 100 fs have been obtained and its wavelength can be adjusted continuously in the range of 1.9-2.36 μm by varying the pump power. The efficiency of Raman conversion is as high as 97% with output power up to 1.16 W. The experimental results are in good agreement with numerical simulations of pulse propagation in Tm-Doped Fiber Amplifier.
Guobin Feng - One of the best experts on this subject based on the ideXlab platform.
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super flat supercontinuum generation from a tm Doped Fiber Amplifier
Scientific Reports, 2016Co-Authors: Mengmeng Tao, Zhenbao Wang, Hongwei Chen, Yanlong Shen, Guobin FengAbstract:Super-flat supercontinua are generated from a double clad Tm-Doped Fiber Amplifier. Two different laser configurations are investigated and compared. In the direct-output configuration, the long-wavelength edge of the supercontinuum spectra is extended to beyond 2.65 μm with a 10 dB bandwidth of 740 nm. In the passive pigtail configuration, the generated supercontinuum features excellent flatness with an intensity difference smaller than 1 dB in the wide central spectral range from 1.98 μm to 2.41 μm.