Coilable single crystals fibers of doped-YAG for high power laser applications

Soleimani, Nazila; Ponting, Bennett; Gebremichael, Eminet; Ribuot, Antoine; Maxwell, G.

doi:10.1016/j.jcrysgro.2013.11.036

Cited by 27 publications

(13 citation statements)

References 8 publications

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“…As shown in Fig. 1, the Table 1 Properties of Amorphous Silica Fibers and Single-Crystal YAG Fibers (Reproduced with permission [30]. Copyright 2013, The international society for optics and photonics) technical feature of the μ-PD method is the use of microchannel technology at the bottom of the crucible and the melt is pulled downwards through the region of radio frequency or resistance heating, which is different from the traditional Czochralski method.…”

Section: Growth Of Single Crystal Fibersmentioning

confidence: 99%

“…The feedback diameter control loop, combined with the stabilized power, reduces the maximum diameter fluctuation of SCF from 7% to less than 1%. [30].…”

Section: Diameter Fluctuationmentioning

confidence: 99%

“…Conceptually, single crystal fibers (SCF) are a kind of functional crystal material with a long-range ordered structure and a typical diameter of dozens of microns. SCF are a combination of bulk crystals and traditional fibers [1], which maintain the advantages of crystals such as high melting points, high thermal conductivity, high laser damage threshold and good mechanical properties. Meanwhile, SCF inherit the large aspect ratio and specific surface area of conventional fibers, which greatly improve their thermal management capabilities.…”

Section: Introductionmentioning

confidence: 99%

“…%) and thermal conductivity (~ 10 W m K −1 ) together with a lower Brillouin gain coefficient (< 10 −13 m/W). Theoretically, the maximum single-mode output power of YAG SCF is more than 100 times higher than silica fibers [29,30]. Therefore, single crystal fibers are considered as the gain medium of the next generation high power laser.…”

Section: Introductionmentioning

confidence: 99%

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Single Crystal Fibers: Diversified Functional Crystal Material

Wang

Zhang

et al. 2019

Adv. Fiber Mater.

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Single crystal fibers (SCF) are considered to be a combination of bulk crystals and conventional fibers, thereby possessing the stable physical and chemical properties accompanied with excellent waveguide properties. This paper gives a detailed introduction to the development history of single crystal fibers, including the evolution of the growth technique and the optimization of the growth process. Laser-heated pedestal growth (LHPG) and Micro-pulling-down (μ-PD) methods are considered to be the most widely used growth techniques for growing single crystal fibers, and the advantages of the two methods are also introduced in detail. The second part of this paper describes the characterization of single crystal fibers, including diameter fluctuation, crystal quality and optical losses. A series of cladding approaches for SCF, such as magnetron sputtering, sol-gel, liquid phase epitaxy, co-drawing LHPG, ion implantation and micro-structure cladding will be reviewed. In addition, the research status of single crystal fiber laser and single crystal fiber sensor are also summarized in view of the current research foundation.

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Section: Growth Of Single Crystal Fibersmentioning

confidence: 99%

“…The feedback diameter control loop, combined with the stabilized power, reduces the maximum diameter fluctuation of SCF from 7% to less than 1%. [30].…”

Section: Diameter Fluctuationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Single Crystal Fibers: Diversified Functional Crystal Material

Wang

Zhang

et al. 2019

Adv. Fiber Mater.

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“…To the best of our knowledge, the fully crystalline double-clad LHPG-grown fiber has not been reported as lasing (or amplifying) so far, namely due to major challenges in developing high optical quality crystalline cladding. Those challenges are not believed to be insurmountable, and quite a few efforts in developing techniques for high optical quality crystalline cladding deposition on the cylindrical circumference of LHPG-grown crystalline cores are ongoing (e.g., references [11,12]). Meanwhile, major improvement in optical quality of the LHPG-grown fiber cores themselves is still required.…”

Section: Introductionmentioning

confidence: 99%

Advances in Single-Crystal Fibers and Thin Rods Grown by Laser Heated Pedestal Growth

et al. 2017

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Single-crystal fibers are an intermediate between laser crystals and doped glass fibers. They have the advantages of both guiding laser light and matching the efficiencies found in bulk crystals, which is making them ideal candidates for high-power laser and fiber laser applications. This work focuses on the growth of a flexible fiber with a core of dopant (Er, Nd, Yb, etc.) and a polycrystalline clad of yttrium aluminum garnet (YAG) that will exhibit good wave guiding properties. Direct growth or a combination of growth and cladding experiments are described. Scattering loss measurements at visible wavelengths, along with dopant profile characterization with damage threshold results, are also presented. For single-pass amplification, a single-pass linear gain of 7.4 was obtained for 29 nJ pulses of 5 ns duration at 1 MHz repetition rate. We also obtained a laser efficiency of over 58% in a diode-pumped configuration. These results confirm the potential for single-crystal fibers to overcome the limitations of the glass fibers commonly used in fiber lasers, making them prime candidates for high-power compact fiber lasers and amplifiers.

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Optical Properties of Ceramics

Kobwittaya

Watari

2019

Materials Chemistry of Ceramics

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Coilable single crystals fibers of doped-YAG for high power laser applications

Cited by 27 publications

References 8 publications

Single Crystal Fibers: Diversified Functional Crystal Material

Single Crystal Fibers: Diversified Functional Crystal Material

Advances in Single-Crystal Fibers and Thin Rods Grown by Laser Heated Pedestal Growth

Optical Properties of Ceramics

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