946  nm Nd:YAG laser with cavity dumping

Kornev, A. F.; Pokrovskiy, V.P.; Gagarskiy, S. V.; Fomicheva, Ya. Yu.; Gnatyuk, P. A.; Kovyarov, A. S.

doi:10.1364/ol.43.003457

Cited by 10 publications

(4 citation statements)

References 12 publications

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“…As the primary winding of the isolation transformer can be equivalently viewed as an inductor L and can form an L-C resonator with the coupling capacitor, the resistors R 9 − R 12 should be inserted in series with C 1 − C 4 , respectively, to damp this L-C resonance. The values of R 9 − R 12 are shown in Equation (7).…”

Section: Transformer-coupled Gate Drive Circuitsmentioning

confidence: 99%

“…A PCD is a high-voltage pulsed power modulator used to control the bi-refringence of an electro-optical crystal (such as KTP, KD*P, or BBO) in order to drive the polarization direction of the light propagating through the crystal. They are widely used for Q-switching [1][2][3], pulse picking [4,5], cavity damping [6,7] and regenerative amplifier control [8][9][10][11]. Taking Q-switching as an example, Figure 1 shows the optical arrangement of a solid-state laser in two different operating modes [12].…”

Section: Introduction 1description Of a Pcdmentioning

confidence: 99%

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A Novel PWM Signal-Generation Strategy for Pockels Cell Drivers

Liu

Chen

et al. 2023

Photonics

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A Pockels cell driver (PCD) can be viewed as a high-voltage pulse width generator for controlling the bi-refringence effect of electro-optical crystals. The main features of a PCD include a high repetition rate, fast on and off switching, variable pulse duration, and a true square pulse shape. The most commonly used PCD has a narrow pulse width tuning range, typically within a few microseconds. In this paper, we propose a PCD based on a novel pulse width modulation (PWM) signal-generation strategy that can continuously adjust its pulse width with a minimum step size of 10 ns and no restriction on the maximum width. Therefore, it is easily compatible with both “On-type” and “Off-type” applications of the electro-optic crystal quarter-wave voltage. The experimental results show that the rising and falling times of the proposed PCD are approximately 7.3 ns and 7.8 ns, respectively, with a maximum repetition rate of 1 MHz and a maximum voltage of approximately 2.0 kV. Finally, the functionality of the PCD is demonstrated in a home-built slab laser.

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Section: Transformer-coupled Gate Drive Circuitsmentioning

confidence: 99%

Section: Introduction 1description Of a Pcdmentioning

confidence: 99%

A Novel PWM Signal-Generation Strategy for Pockels Cell Drivers

Liu

Chen

et al. 2023

Photonics

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show abstract

“…3 ns 2.5 mJ pulsed Nd:YAG laser was demonstrated at 946 nm in the cavity‐dumped mode of operation [9]. The pulse width obtained in the cavity‐dumped mode of operation is equal to the cavity round trip.…”

Section: Introductionmentioning

confidence: 99%

“…Injection seeding can solve the problem of peak‐power spikes and pulse‐shape instability of laser [9]. However, pulse energy scaling of laser [9] is difficult due to the fixed cavity length, the maximum permissible optical fluence on the cavity elements and the beam‐quality requirements. A power amplifier is required in order to increase the pulse energy of the laser operating in the cavity‐dumped mode from 2.5 mJ to more than 20 mJ.…”

Section: Introductionmentioning

confidence: 99%