Narrow Pulse Width lasers Operating over Wide Range of Low Temperature

Jiarong, 白家荣 Bai; Yuan, 刘源 Liu; Chaoyang, 钟朝阳 Zhong; Jie, 孟洁 Meng; Junjie, 施君杰 Shi; Mingjian, 王明建 Wang; Junqing, 孟俊清 Meng; Xia, 侯霞 Hou; Weibiao, 陈卫标 Chen

doi:10.3788/cjl201946.0101004

Cited by 4 publications

(1 citation statement)

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“…In 2016, Shanghai Institute of Optics and Fine Mechanics ,Chinese Academy of Sciences(SIOM), used two VCSEL arrays side-pumped with Nd:YAG crystals and achieved a single pulse energy of 2.1mJ with a pulse width of 4ns by passive Q-switching [11] . In 2019, Jiarong Bai et al from SIOM adopted TEC temperature-controlled VCSEL side-pumped Nd:YAG lath crystals to obtain a laser output with an average energy of 18.79mJ [12] . In 2020, Shiyong Xie et al obtained 45mJ 1064nm laser output with an optical-to-optical conversion efficiency of 22.5% by end-pumped Nd:YAG with an approximate circular VCSEL array with a diameter of 8.93mm [13] .…”

Section: Introductionmentioning

confidence: 99%

VCSEL end-pumped 1319nm Nd:YAG Q-switched laser

Liu

Jin

Cao

et al. 2023

Advanced Fiber Laser Conference (AFL2022)

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1319nm lasers have important applications in optical communication, LIDAR, laser display, laser medical, etc. In applications such as LIDAR, reliable operation over a wide temperature range is a key indicator of the laser. Vertical cavity surface emitting lasers are new pump sources for all-solid-state lasers because of their narrow linewidth, small temperature drift coefficient, and two-dimensional expansion. In this paper, we report an 808nm VCSEL end-pumped Nd:YAG 1319nm Q-switched laser that can operate stably over a wide temperature range, The whole laser is dissipated by natural conduction cooling, the VCSEL array is collimated by a two-dimensional microlens array for beam shaping, and Nd:YAG is used as the dielectric crystal to obtain a 1319nm laser output with a maximum single pulse energy of 2.8mJ and a beam quality of M 2 <1.5 by passive Q-switching.

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Section: Introductionmentioning

confidence: 99%

VCSEL end-pumped 1319nm Nd:YAG Q-switched laser

Liu

Jin

Cao

et al. 2023

Advanced Fiber Laser Conference (AFL2022)

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Kilowatt high power ytterbium-doped fiber laser operation in a record-wide temperature range from -50 °C to 50 °C

Chen,

Wu,

et al. 2024

Opt. Express

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We report on a kilowatt-level ytterbium-doped fiber laser that can operate stably over a record-wide temperature range from -50 °C to 50 °C with only an active fan-cooling system. The laser has demonstrated the reliability of continuous high-power emission for 120 seconds within the 100 °C temperature range. Under normal temperature conditions, the typical output power of the laser is 1211 W, with a conversion efficiency of 74% and a beam quality of M2∼1.42. This laser system is versatile and portable, designed to switch quickly to various scenarios and operate reliably. From frigid to scorching climates, as well as areas with substantial temperature fluctuations, it consistently delivers high performance and stability. The temperature characteristics of the laser have been modeled based on data obtained from experiments. The theoretical analysis shows that when the ambient temperature changes significantly, the absorption, power distribution, as well as the SRS and TMI characteristics of the laser will be noticeably affected.

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Advances in All-Solid-State Passively Q-Switched Lasers Based on Cr4+:YAG Saturable Absorber

et al. 2021

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All-solid-state passively Q-switched lasers have advantages that include simple structure, high peak power, and short sub-nanosecond pulse width. Potentially, these lasers can be applied in multiple settings, such as in miniature light sources, laser medical treatment, remote sensing, and precision processing. Cr4+:YAG crystal is an ideal Q-switch material for all-solid-state passively Q-switched lasers owing to its high thermal conductivity, low saturation light intensity, and high damage threshold. This study summarizes the research progress on all-solid-state passively Q-switched lasers that use Cr4+:YAG crystal as a saturable absorber and discusses further prospects for the development and application of such lasers.

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Narrow Pulse Width lasers Operating over Wide Range of Low Temperature

Cited by 4 publications

References 0 publications

VCSEL end-pumped 1319nm Nd:YAG Q-switched laser

VCSEL end-pumped 1319nm Nd:YAG Q-switched laser

Kilowatt high power ytterbium-doped fiber laser operation in a record-wide temperature range from -50 °C to 50 °C

Advances in All-Solid-State Passively Q-Switched Lasers Based on Cr4+:YAG Saturable Absorber

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