Hundred-watt level average power CPA system with all-fiberized laser amplifiers based on CFBG stretcher and CVBG compressor

Wang, Mingxiao; Li, Pingxue; Li, Shun; Xu, Yangtao; Yao, Chuanfei

doi:10.1016/j.ijleo.2022.168597

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…For instance, a shaped waveform with the mathematical description of a Tan-hyperbolic is used as sudden switching on-off RF-pulse generator [27]. In addition, it is worth noting that, the CPA laser technique (chirped population amplification) makes extensive use of chirping pulses to create ultra-short, extremely high-energy lasers [28][29][30][31][32][33]. These pulses are effective in implementing atomic population transfers in molecules and atoms.…”

Section: Introductionmentioning

confidence: 99%

Exact Solutions of the Bloch Equations to the Asymmetric Hyperbolic Cosine Pulse with Chirped Frequency

Grira

Boutabba²,

Eleuch

2023

Mathematics

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In this research study, we derive the exact solutions of the Bloch equations describing the dynamics of a two-level atom with dephasing. In the two-level atom, a strong laser pump couples a ground state to an upper excited state with a time-dependent Rabi-frequency. The exact solutions are given for the atomic population inversion and the real and imaginary parts of the coherence while the input pulse is an asymmetric hyperbolic cosine form. Additionally, the system is under a chirped detuning. The method of solving the Bloch equations analytically is a very tedious part of the research, and as far as we know, there are few exact solutions available in this field. Hence, our solutions might be of great interest to various research areas, including nuclear magnetic resonance, where analytical solutions to the Bloch equations play a major role in the study of the information on the state of the medium as determined by the NMR signals.

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