High Power and Short Pulse Width Operation of Passively Q-Switched Er:Lu2O3 Ceramic Laser at 2.7 μm

Wang, Li; Huang, H. K.; Shen, Deyuan; Zhang, Jian; Tang, Dingyuan

doi:10.3390/app8050801

Cited by 5 publications

(4 citation statements)

References 32 publications

(44 reference statements)

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“…The high-quality 5 at%Er: SrF 2 transparent ceramics were prepared by chemically derived powder hot pressing at 700 °C for 40 h. Its emission spectrum exhibits the mightiest emission band at 2735 nm, which implies that a laser output of approximately 2.7 μm can be achieved in 5 at% Er 3+ ion-doped SrF 2 transparent ceramics [16]. [17]. However, using ceramic as a substrate also has its problems.…”

Section: Characterization Of Er 3+ Doping In Different Substratesmentioning

confidence: 99%

Research status of rare-earth-ion-doped infrared laser

Zhang,

Wang,

et al. 2024

Front. Phys.

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Infrared lasers have an extensive range of applications in sensing, detection, communication, medicine, and other fields. The principle of directly pumping solid-state lasers is simple, and it can easily achieve high-power and high-efficiency laser output, which is one of the important means to obtain infrared lasers. Incorporating rare earth ions into the substrate as the gain medium for directly pumping solid-state lasers can alter their optical performance and further enhance the performance of the laser. Lasers based on rare earth ion doping have a small volume, high conversion efficiency, good beam quality, wide tuning range, and multiple operating modes. Therefore, the proportion of rare earth ions doped as the gain medium for activating ions is currently very large. In this review, Ho3+, Tm3+, and Er3+ are selected as the representative rare earth ions, and their optical properties, such as luminous power and fluorescence lifetime, when doped in different substrates, such as crystals, ceramics, and fibers, are introduced, respectively, to illustrate their feasibility as infrared laser gain media. In addition, we show the different optical properties when doped with two ions, three ions, and four ions, demonstrating their great potential as infrared laser gain media.

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Section: Characterization Of Er 3+ Doping In Different Substratesmentioning

confidence: 99%

Research status of rare-earth-ion-doped infrared laser

Zhang,

Wang,

et al. 2024

Front. Phys.

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“…For mode-locked lasers, however, it has shown good performance. In 2018, Wang et al [115] realized a passively Q-switched Er:Lu 2 O 3 ceramic laser by using SESAM as SA. The device is shown in Figure 6d.…”

Section: Er:lu 2 Omentioning

confidence: 99%

“…The device is shown in Figure 6d. It had a pulse energy of ~9.8 µJ and produced pulses with a duration of 70 ns [115]. In 2019, H Uehara obtained a 2845 nm laser output with a pulse duration of 247 ns and a maximum pulse energy of 9.4 µJ by using a monolayer graphene saturable absorber to passively Q-tune the Er:Lu 2 O 3 ceramic laser [116].…”

Section: Er:lu 2 Omentioning

confidence: 99%

Development of the 2.7 μm to 3 μm Erbium-Doped Laser

Liu,

Gu,

Liu

et al. 2023

Crystals

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The 3 μm wavelength band laser is located on the strong absorption peak of water and the atmospheric transmission window. The 3 μm laser with high single pulse energy is used in medical treatment for cutting soft tissues and bones during surgery. It is used as a pump source for optical parametric oscillators, and Fe lasers can realize 3~5 μm or 8~14 μm laser output, which has an irreplaceable role in certain areas (e.g., optoelectronic countermeasures, LIDAR, atmospheric monitoring, etc.). Commercial semiconductor-pumped Er lasers are capable of achieving 3 μm laser output of 600 mJ with the maturation of a 970 nm semiconductor laser. The conversion efficiency is significantly improved. However, the energy is lower than a flash-lamp-pumped Er laser. There are still serious crystal thermal effects and an inefficient conversion process. In this paper, the energy-level systems of 3 μm Er-doped lasers are discussed. A summary of the current state of research on Er lasers using different matrices and the commercialization of Er-doped lasers with wavelengths ranging from 2.7 μm to 3 μm is also provided. Several technical means are given to enhance laser performance. Furthermore, the development of Er-doped solid-state lasers with wavelengths between 2.7 and 3 μm is envisaged in the near future.

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“…In the next stage, the Er-doped sesquioxides will be focused on with Q-switching to obtain much higher peak power. Numerous passively Q-switched Er:Lu 2 O 3 lasers at mid-IR have recently been reported using a semiconductor saturable absorber mirror, 11) MoS 2 , 12) black phosphorus, 13) and graphitic carbon nitride 14) as saturable absorbers (SAs).…”

mentioning

confidence: 99%

A passively Q-switched compact Er:Lu₂O₃ ceramics laser at 2.8 μm with a graphene saturable absorber

Uehara

Tokita

Kawanaka

et al. 2019

Appl. Phys. Express

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We have demonstrated a passively Q-switched Er:Lu2O3 ceramics laser using a monolayer graphene saturable absorber. Stable pulsed operation with watt-level average power was achieved by a compact linear cavity without focusing on the saturable absorber. This is the first demonstration of a passively Q-switched mid-IR Er:Lu2O3 laser using a graphene saturable absorber. A maximum pulse energy of 9.4 μJ and a peak power of 33 W were achieved with a 247 ns pulse duration. To our knowledge, this is the shortest pulse duration, highest pulse energy, and highest peak power obtained with a graphene saturable absorber in the 3 μm wavelength region.

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High Power and Short Pulse Width Operation of Passively Q-Switched Er:Lu2O3 Ceramic Laser at 2.7 μm

Cited by 5 publications

References 32 publications

Research status of rare-earth-ion-doped infrared laser

Research status of rare-earth-ion-doped infrared laser

Development of the 2.7 μm to 3 μm Erbium-Doped Laser

A passively Q-switched compact Er:Lu₂O₃ ceramics laser at 2.8 μm with a graphene saturable absorber

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High Power and Short Pulse Width Operation of Passively Q-Switched Er:Lu2O3 Ceramic Laser at 2.7 μm

Cited by 5 publications

References 32 publications

Research status of rare-earth-ion-doped infrared laser

Research status of rare-earth-ion-doped infrared laser

Development of the 2.7 μm to 3 μm Erbium-Doped Laser

A passively Q-switched compact Er:Lu2O3 ceramics laser at 2.8 μm with a graphene saturable absorber

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Product

Resources

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A passively Q-switched compact Er:Lu₂O₃ ceramics laser at 2.8 μm with a graphene saturable absorber