Room-temperature diode-pumped Yb:YAG laser

Lacovara, P.; Choi, H. K.; Wang, C. A.; Aggarwal, R. L.; Fan, T. Y.

doi:10.1364/ol.16.001089

Cited by 428 publications

(123 citation statements)

References 8 publications

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“…Rare earth ions, from Ce 3+ to Yb 3+ , possess especial electronic structure and abundant energy levels, so relatively strong MD transition is not difficult to find. In Yb 3+ , the 4f 13 electron configuration has only two energy-level manifolds, the ground state 2 F 7/2 and an excited state 2 F 5/2 , which are separated by about 10600 cm −1 [27]. According to selection rules, MD transition is allowed between them.…”

Section: Magnetic Dipole Transitionmentioning

confidence: 99%

Magnetic Response and Negative Refraction at Optical Frequencies on the Basis of Electronic Transitions in Rare-Earth Ions Doped Crystals

Fu¹,

Xu²,

Zhou³

2013

PIER

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Abstract-Magnetic response based on a two-level magnetic dipole transition in rare earth ions doped crystals was studied. Semi-classic theory and Wigner-Eckart theorem were used to calculate the magnetic permeability. It is found that negative permeability can be attained near the transition frequencies. In order to realize simultaneously negative permittivity and negative permeability, an electric dipole transition at the same frequency was also adopted, and a negative refraction region with a bandwidth of 0.57 MHz is demonstrated in (Yb 0.02 Sm 0.02 Y 0.96 ) 3 Al 5 O 12 crystal. This explores a new route to obtain magnetic response and negative refraction at optical frequencies with nature-existed materials instead of metamaterials.

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Section: Magnetic Dipole Transitionmentioning

confidence: 99%

Magnetic Response and Negative Refraction at Optical Frequencies on the Basis of Electronic Transitions in Rare-Earth Ions Doped Crystals

Fu¹,

Xu²,

Zhou³

2013

PIER

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“…Yb:YAG crystals have been widely studied because they have various advantages for efficient diode-pumped lasers [1][2][3][4]. Yb:YAG has a broad pump line at 940 nm that is 10 times broader than the 808 nm pump line in the conventional Nd:YAG, which makes the system less sensitive to thermal drift of the laser diode (LD) wavelength [5].…”

Section: Introductionmentioning

confidence: 99%

Cooling Geometry Dependent Operation Properties in a Diode End-Pumped Monolithic Yb:YAG Laser

Moon

Lim

2016

Journal of the Optical Society of Korea

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Operation properties, such as output power, beam radius, and crystal temperature rise were investigated in a diode-pumped edge-cooled monolithic Yb:YAG laser with ~ 4 W pumping level. The output power showed saturation behavior because of severe temperature rise and poor spatial overlapping between pump beam and lasing mode. Face cooling geometry by using a sapphire plate was also investigated. No apparent saturation behavior in output power was observed due to the reduced temperature rise, which could be attributed to efficient heat removal through the crystal-sapphire interface.

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“…Recent development of InGaAs laser diode has stimulated interest in Yb 3+ -doped solid-state materials used as gain for high-efficiency, high-power diode-pumped solid-state lasers [1] . Among the numerous Yb-doped crystals, Yb : Y 3 Al 5 O 12 (Yb : YAG) is the most promising laser-active medium due to small quantum defect (8.6%), no excited state absorption and up-conversion, large absorption and emission width, long fluorescent lifetime, and excellent physical and chemical properties.…”

Section: Introductionmentioning

confidence: 99%