High pulse energy, high beam quality microsecond-pulse Ti:sapphire laser at 819.7 nm

Xu, Chang; Guo, Chuan; Yu, Haibo; Wang, Zhimin; Zuo, Jun-Wei; Xia, Yuanqin; Bian, Qi; Yang, Bo; Gao, Hongwei; Guo, Ya-Ding; Zhang, Sheng; Cui, Dafu; Peng, Qinjun; Xu, Zuyan

doi:10.1007/s00340-016-6627-1

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…Several transitions involving two-step excitation have been discussed in the literature. The processes of 3S 1/2 → 3P 3/2 → 4D 5/2 (589 + 569 nm) [22], 3S 1/2 → 3P 3/2 → 4S 1/2 (589 + 1140 nm) [23] and 3S 1/2 → 3P 3/2 → 3D 5/2 (589 + 819.7 nm) [24]. Excitation via the 3P 1/2 state is also possible but with somewhat lower transition rates.…”

Section: A Sodiummentioning

confidence: 99%

Atomic transitions for adaptive optics

2021

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This paper reviews atoms and ions in the upper atmosphere, including the mesospheric metals Na, Fe, Mg + , Si + , Ca + , K and also non-metallic species N, N + , O, H, considering their potential for astronomical adaptive optics. Na and Fe are the best candidates for the creation of polychromatic laser guide stars, with the strongest returns coming from transitions that can be reached by excitation at two wavelengths. Ca + and Si + have strong visible-light transitions, but require short wavelengths, beyond the atmospheric cutoff, for excitation from the ground state. Atomic O, N and N + have strong transitions and high abundances in the mesosphere. The product of column density and cross section for these species can be as high as 10 5 for O and several hundred for N and N + , making them potential candidates for amplified spontaneous emission. However they require vacuum-ultraviolet wavelengths for excitation, which probably precludes their use for ground-based adaptive optics.

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Section: A Sodiummentioning

confidence: 99%

Atomic transitions for adaptive optics

2021

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“…The system achieved notable results, producing an output of 2.6 kW and 520 mJ at 1064 nm, as well as 1.3 kW and 262 mJ at 532 nm, all with a pulse duration of 200 µs. This setup holds promise as a potential pump source for Ti:sapphire, dye, or optical parametric amplifiers, enabling the generation of tunable high-power single-frequency radiation suitable for precision measurements and laser slowing, as discussed in [4].…”

Section: Introductionmentioning

confidence: 99%

Widely Tunable Pulse Duration 100 mJ Single-Mode MOPA System Based on Yb-Doped Tapered Double-Clad Fiber and Nd:YAG Solid-State Amplifiers

Kozlyakov,

Petrov,

Mikhailovskiy

2024

Photonics

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We report on a 1064 nm master oscillator power amplifier (MOPA) system based on pulse-modulated laser diode seed sources combined with fiber preamplifiers and a Yb-doped tapered double-clad fiber (T-DCF) amplifier used as an all-fiber master oscillator and a two-stage side-pumped solid-state power amplifier. The combination of two master oscillators and a single power amplifier allowed us to obtain pulses with a duration ranging from 10 ns to 10 μs with energy up to 137 mJ at 100 Hz. For the first time, we demonstrate a widely tunable pulse duration and a solid-state MOPA system with over 100 mJ energy based on a T-DCF fiber seed laser.

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High brightness narrow-linewidth microsecond pulse green laser by frequency doubling of a master oscillator power amplifier Nd:YAG laser

Yang

Guo

et al. 2018

Optics & Laser Technology

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High pulse energy, high beam quality microsecond-pulse Ti:sapphire laser at 819.7 nm

Cited by 5 publications

References 19 publications

Atomic transitions for adaptive optics

Atomic transitions for adaptive optics

Widely Tunable Pulse Duration 100 mJ Single-Mode MOPA System Based on Yb-Doped Tapered Double-Clad Fiber and Nd:YAG Solid-State Amplifiers

High brightness narrow-linewidth microsecond pulse green laser by frequency doubling of a master oscillator power amplifier Nd:YAG laser

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