Comparison of Yb:YAG single crystal fiber with larger aperture CPA pumped at 940 nm and 969 nm

Rodin, Aleksej M.; Zopelis, Eimantas

doi:10.1109/cleopr.2017.8118912

Cited by 5 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[8][9][10][11] Recent advancements have shown the bulk crystal can achieve comparable performance to the SCF scheme in power amplification, which will further reduce the expense of the DUV laser system. 12 Second, while the generation of continuous-wave 193 nm light often requires the addition of an enhancement cavity to obtain a higher conversion efficiency, 10,13 pulsed laser generation benefits from the associated higher peak power and can be more straightforwardly implemented. Numerous variations of such multistage architecture have been demonstrated for pulsed 193 nm generation in the past decades, with increasing output power reported.…”

Section: Introductionmentioning

confidence: 99%

“…First, the advancement of high-power solid-state lasers, such as thin-disk lasers, single-crystal fiber (SCF) lasers, Ti:sapphire lasers, and fiber lasers, enables the pump sources to compensate for the energy loss during frequency conversion processes and obtain bright DUV light 8 – 11 Recent advancements have shown the bulk crystal can achieve comparable performance to the SCF scheme in power amplification, which will further reduce the expense of the DUV laser system 12 . Second, while the generation of continuous-wave 193 nm light often requires the addition of an enhancement cavity to obtain a higher conversion efficiency, 10 , 13 pulsed laser generation benefits from the associated higher peak power and can be more straightforwardly implemented.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-power, narrow linewidth solid-state deep ultraviolet laser generation at 193 nm by frequency mixing in LBO crystals

Zhang,

Yu,

Chen

et al. 2024

Adv. Photon. Nexus

View full text Add to dashboard Cite

A 60-mW solid-state deep ultraviolet (DUV) laser at 193 nm with narrow linewidth is obtained with two stages of sum frequency generation in LBO crystals. The pump lasers, at 258 and 1553 nm, are derived from a homemade Yb-hybrid laser employing fourth-harmonic generation and Er-doped fiber laser, respectively. The Yb-hybrid laser, finally, is power scaling by a 2 mm × 2 mm × 30 mm Yb:YAG bulk crystal. Accompanied by the generated 220-mW DUV laser at 221 nm, the 193-nm laser delivers an average power of 60 mW with a pulse duration of 4.6 ns, a repetition rate of 6 kHz, and a linewidth of ∼640 MHz. To the best of our knowledge, this is the highest power of 193-and 221-nm laser generated by an LBO crystal ever reported as well as the narrowest linewidth of 193-nm laser by it. Remarkably, the conversion efficiency reaches 27% for 221 to 193 nm and 3% for 258 to 193 nm, which are the highest efficiency values reported to date. We demonstrate the huge potential of LBO crystals for producing hundreds of milliwatt or even watt level 193-nm laser, which also paves a brand-new way to generate other DUV laser wavelengths.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-power, narrow linewidth solid-state deep ultraviolet laser generation at 193 nm by frequency mixing in LBO crystals

Zhang,

Yu,

Chen

et al. 2024

Adv. Photon. Nexus

View full text Add to dashboard Cite

show abstract

“…In addition, Yb:YAG thin rods are much less expensive than Yb:YAG SCFs due to their simple preparation process. In 2017, Rodin et al used a 2 at.% doped Yb:YAG thin-rod amplifier with dimensions of 2 mm × 2 mm ×20 mm to amplify a 500 mW seed beam to 47.3 W at 500 kHz [21]. In 2019, Chu et al demonstrated a master oscillator power amplifier (MOPA) laser system with a Yb:KGW oscillator and two Yb:YAG amplifiers to directly amplify a signal with a pulse width of 1.87 ps and repetition rate of 1 MHz; an output power of 8.2 W was obtained with a pulse width of 4.66 ps [22].…”

Section: Introductionmentioning

confidence: 99%

Compact 80 W, 1 MHz Femtosecond Chirped Pulse Amplification Laser System Based on a Yb-Doped Fiber and a Yb:YAG Thin Rod

Peng

Shi

et al. 2022

IEEE Photonics J.

View full text Add to dashboard Cite

We present a hybrid chirped pulse amplification (CPA) laser system based on Yb-doped fiber and Yb:YAG thin rod. The laser system demonstrates a novel approach to generate high average power up to the 100-W level by using a Yb:YAG thin rod without pump guiding at room temperature. A Yb-doped allfiber laser with an output power of 7 W and a repetition rate of 1 MHz is amplified to an output power of 126.2 W in simple and compact two-stage amplifiers consisting of a single fiber crystal (SCF) and a Yb:YAG thin rod. To the best of our knowledge, this is the highest output power of Yb:YAG thin-rod amplifier with good beam quality obtained without pump guiding at room temperature. After using a thin-film polarizer (TFP) to remove the thermal depolarization, a linearly polarized ultrashort pulse laser with an average power of 115.2 W is obtained. An output power of 80.6 W with a pulse width of 580 fs is achieved after pulse compression. The central pulse contains 84.1% of the total pulse energy, corresponding to a pulse peak power of 116.9 MW.

show abstract

High power and excellent beam quality rod Yb: YAG regenerative amplifier

Luo,

Song,

Peng

et al. 2024

Appl. Phys. B

View full text Add to dashboard Cite

Comparison of Yb:YAG single crystal fiber with larger aperture CPA pumped at 940 nm and 969 nm

Cited by 5 publications

References 7 publications

High-power, narrow linewidth solid-state deep ultraviolet laser generation at 193 nm by frequency mixing in LBO crystals

High-power, narrow linewidth solid-state deep ultraviolet laser generation at 193 nm by frequency mixing in LBO crystals

Compact 80 W, 1 MHz Femtosecond Chirped Pulse Amplification Laser System Based on a Yb-Doped Fiber and a Yb:YAG Thin Rod

High power and excellent beam quality rod Yb: YAG regenerative amplifier

Contact Info

Product

Resources

About