Electro-optically cavity-dumped Ho:SSO laser with a pulse width of 3.6 ns and linewidth of 70 pm

Duan, Xiaoming; Zhang, W S; Li, L J; Zheng, Lihe; Yao, Baoquan; Jiang, Dongfang; Su, Liangbi

doi:10.1088/1555-6611/aaea77

Cited by 8 publications

(2 citation statements)

References 16 publications

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“…8 In 2018, Duan et al reported a 3.6 ns pulse duration and 60 µJ energy per pulse at 100 kHz PRF and wavelength of 2100.5 nm, using a Ho:SSO as a gain medium . 9 For the Q-switching method, it can be seen in the following reports that longer pulse durations with high energies per pulse were obtained: In 2020, Yuan et al reported a 13.3 ns pulse duration and 1.02 mJ energy per pulse at a 10.1 kHz PRF and wavelength of 2089 nm using a ceramic Ho:YAG as the gain medium and a Cr 2+ :ZnS as SA. 10 In 2019, Wang et al reported a 7.5 ns pulse duration and 1.44 mJ energy per pulse at 1 kHz PRF and wavelength of 2122 nm using Ho:YAG single crystal fiber as a gain medium.…”

Section: Introductionmentioning

confidence: 99%

Gain switched Ho:YAG lasers with 2-4ns pulse duration, and high energy per pulse

Golan,

Nahear,

Bach

et al. 2024

Solid State Lasers XXXIII: Technology and Devices

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The 2 µm wavelength range provides a wide range of applications requiring short pulse durations, high peak power, and high atmospheric transmittance. Typically, Ho:YAG lasers are suitable for such applications due to their emission at 2.1 µm. Unfortunately, the existing literature reveals either short pulse durations with low energies using the cavity dumping method or high energies with longer pulse durations using the Q-switch method within this spectral range. Here, we present a novel approach that combines high energy per pulse and short pulse duration for a Ho:YAG laser, utilizing the Gain-switch method. The main advantage of the Gain-switch over Q-switch is the ability to design a short cavity, thereby achieving short pulse durations. Two different lengths of Ho:YAG crystals (20mm or 7mm) were tested using an actively (acousto optic modulator) or passively (Cr:ZnS) Q-switched Tm:YLF laser that was tuned to the Ho:YAG absorption peak, at 1879 nm, as a pump source. The Ho:YAG laser emitted at 2090 nm. Pulse durations of 3.35 ns with energies up to 0.7 mJ were obtained for the 20mm Ho:YAG crystal using the active or passive seed lasers. Shorter pulses of 2.3 ns with energies up to 0.35 mJ, were obtained for the 7mm Ho:YAG crystal using the passive seed laser. The reported results were limited by the output coupler's damage threshold level. These results represent the highest achievements in terms of pulse duration and energy per pulse using the Gain-switch method.

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Section: Introductionmentioning

confidence: 99%

Gain switched Ho:YAG lasers with 2-4ns pulse duration, and high energy per pulse

Golan,

Nahear,

Bach

et al. 2024

Solid State Lasers XXXIII: Technology and Devices

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“…22,23) Spectrum control of CW and/or Q-switched operation of Ho:YAP, Ho:CaF 2 and Ho:SSO lasers using VBG have already been successfully demonstrated. [24][25][26] In this paper we report on high-peak-power and narrowlinewidth operation of an acousto-optically (AO) Q-switched Ho:YAG laser employing a VBG as the input coupler and spectrum controller. The laser is wing-pumped using a homeconstructed high power Tm:fiber laser at 1931.5 nm to achieve improved thermal dissipation uniformity.…”

mentioning

confidence: 99%

High-peak-power and narrow-linewidth Q-switched Ho:YAG laser in-band pumped at 1931 nm

Shen

Yao

et al. 2020

Appl. Phys. Express

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We describe a high-peak-power, narrow-linewidth Q-switched Ho:YAG laser at 2097 nm wing-pumped by a high power and high brightness Tm:fiber source at 1931.5 nm. The laser was wavelength locked and spectrum narrowed utilizing a volume Bragg grating as the input coupler, resulting a linewidth of less than 0.1 nm. At 22.7 W of incident pump power, stable pulses of 5.5 mJ pulse energy and 17.5 ns of pulse duration have been generated at repetition frequency of 1 kHz, corresponding to peak-power of 314.3 kW.

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Defective molybdenum oxide function as saturable absorber for nanosecond pulse generater servicing Nd3+, Er3+, Tm3+ doped laser emission at 1.06, 1.64 and 1.94 μm

et al. 2020

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Electro-optically cavity-dumped Ho:SSO laser with a pulse width of 3.6 ns and linewidth of 70 pm

Cited by 8 publications

References 16 publications

Gain switched Ho:YAG lasers with 2-4ns pulse duration, and high energy per pulse

Gain switched Ho:YAG lasers with 2-4ns pulse duration, and high energy per pulse

High-peak-power and narrow-linewidth Q-switched Ho:YAG laser in-band pumped at 1931 nm

Defective molybdenum oxide function as saturable absorber for nanosecond pulse generater servicing Nd3+, Er3+, Tm3+ doped laser emission at 1.06, 1.64 and 1.94 μm

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