High-power LD side-pump Nd: YAG regenerative amplifier at 1 kHz repetition rate with volume Bragg gratings (VBG) for broadening and compressor

Long, Mingliang; Chen, Liyuan; Chen, Meng; Li, Gang

doi:10.1007/s00340-016-6424-x

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…It is known that picosecond laser pulses can usually be generated and amplified by various kinds of laser systems, such as the all-fiber laser system [19,20], all-solid-state laser system [21,22] and fiber-solid hybrid laser system [23][24][25][26][27]. Compared with the usual all-solid-state mode-locked laser, all-fiber mode-locked lasers have the characteristics of high optical-to-optical conversion efficiency, compact structure, good thermal management and high stability, which is an ideal alternative to solid-state lasers for the application of laser-induced damage.…”

Section: Introductionmentioning

confidence: 99%

High-energy hundred-picosecond fiber-solid hybrid laser and its application in laser-induced damage in PIN photodiode

Wang

et al. 2020

Laser Phys.

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We report on a home-made high-energy hundred-picosecond fiber-solid hybrid laser system, which consists of a high-stability all-fiber seed source and a high-energy quasi-continuouswave laser diode side-pumped Nd:YAG regenerative amplifier. With this system, pulse energy of 4 mJ and pulse duration of 302 ps have been achieved at 500 Hz repetition rate. The highenergy picosecond pulses of this laser amplifier are used for the experiments of laser-induced damage in the PIN photodiode. Detection signals and damage morphologies in the damage process have been observed and studied. The failure threshold of 26 GW cm −2 has been obtained under 1.82 mJ laser irradiation. In addition, the density distribution of laser-induced plasma has been simulated based on hydrodynamics theory, which is consistent with the experimental results. Damage behavior indicates that surface damage of the PIN photodiode can be analyzed by deep melting transients and plasma motion. This scheme takes advantage of the combination of fiber and solid laser to achieve efficient and stable energy amplification of picosecond pulses, which provides a better laser irradiation source for studying thermal and plasma damage of laser-induced damage in the PIN photodiode.

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Section: Introductionmentioning

confidence: 99%

High-energy hundred-picosecond fiber-solid hybrid laser and its application in laser-induced damage in PIN photodiode

Wang

et al. 2020

Laser Phys.

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“…RAs based on them are generally free of CPA because of the relatively longer pulse durations. Diode-pumped RAs built with Nd:YAG or Nd:YLF crystals are commonly side-pumped for high pulse energy generation [24][25][26][27][28][29] . End-pumping schemes provide simpler structures and are always realized by neodymium-doped vanadate crystals.…”

Section: Introductionmentioning

confidence: 99%

High-repetition-rate and high-power picosecond regenerative amplifier based on a single bulk Nd:GdVO4 crystal

Guo

Wang

Lin

et al. 2019

High Pow Laser Sci Eng

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We report on a high-repetition-rate, high-power continuously pumped Nd:GdVO4 regenerative amplifier. Numerical simulations successfully pinpoint the optimum working point free of bifurcation instability with simultaneous efficient energy extraction. At a repetition rate of 100 kHz, a maximum output power of 23 W was obtained with a pulse duration of 27 ps, corresponding to a pulse energy of $230~\unicode[STIX]{x03BC}\text{J}$ . The system displayed an outstanding stability with a root mean square power noise as low as 0.3%. The geometry of the optical resonator and the pumping scheme enhanced output power in the $\text{TEM}_{00}$ mode with a single bulk crystal. Accordingly, nearly diffraction-limited beam quality was produced with $M^{2}\approx 1.2$ at full pump power.

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High-efficiency 50 W burst-mode hundred picosecond green laser

Chen

et al. 2020

High Pow Laser Sci Eng

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We report high-energy, high-efficiency second harmonic generation in a near-infrared all-solid-state burst-mode picosecond laser at a repetition rate of 1 kHz with four pulses per burst using a type-I noncritical phase-matching lithium triborate crystal. The pulses in each burst have the same time delay ( ${\sim}1~\text{ns}$ ), the same pulse duration ( ${\sim}100~\text{ps}$ ) and different relative amplitudes that can be adjusted separately. A mode-locked beam from a semiconductor saturable absorber mirror is pulse-stretched, split into seed pulses and injected into a Nd:YAG regenerative amplifier. After the beam is reshaped by aspheric lenses, a two-stage master oscillator power amplifier and 4f imaging systems are applied to obtain a high power of ${\sim}100~\text{W}$ . The 532 nm green laser has a maximum conversion efficiency of 68%, an average power of up to 50 W and a beam quality factor $M^{2}$ of 3.5.

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High-power LD side-pump Nd: YAG regenerative amplifier at 1 kHz repetition rate with volume Bragg gratings (VBG) for broadening and compressor

Cited by 4 publications

References 10 publications

High-energy hundred-picosecond fiber-solid hybrid laser and its application in laser-induced damage in PIN photodiode

High-energy hundred-picosecond fiber-solid hybrid laser and its application in laser-induced damage in PIN photodiode

High-repetition-rate and high-power picosecond regenerative amplifier based on a single bulk Nd:GdVO4 crystal

High-efficiency 50 W burst-mode hundred picosecond green laser

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