Simulation and experiment on laser-heated pedestal growth of chromium-doped yttrium aluminum garnet single-crystal fiber

Chang, Chun-Lin; Huang, Sheng-Lung; Lo, Chen‐Tsyr; Huang, Kai-Feng; Lan, C.W.; Cheng, Wood-Hi; Chen, Peng-Yi

doi:10.1016/j.jcrysgro.2010.11.035

Cited by 8 publications

(2 citation statements)

References 26 publications

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“…One of the most LFZ-developed materials is single crystal Y 3 Al 5 O 12 (YAG) as a laser medium. Despite the fact that it was produced by Fejer et al in 1984 [25], a considerable amount of work has appeared during the last 20 years (Table 1) reporting its growth [35][36][37][38][40][41][42][49][50][51][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70][71][72], improving the production efficiency [59,71], and also enhancing its mechanical and optical characteristics [38]. Among those studies, the work of Nie et al, in 2015 [37], who produced YAG single crystals doped with Er 3+ , Ho 3+ , Tm 3+ , Nd 3+ , and Yb 3+ may be highlighted here.…”

Section: Materials For Photonic and Optical Applicationsmentioning

confidence: 99%

Laser Floating Zone Growth: Overview, Singular Materials, Broad Applications, and Future Perspectives

et al. 2020

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The Laser Floating Zone (LFZ) technique, also known as Laser-Heated Pedestal Growth (LHPG), has been developed throughout the last several decades as a simple, fast, and crucible-free method for growing high-crystalline-quality materials, particularly when compared to the more conventional Verneuil, Bridgman–Stockbarger, and Czochralski methods. Multiple worldwide efforts have, over the years, enabled the growth of highly oriented polycrystalline and single-crystal high-melting materials. This work attempted to critically review the most representative advancements in LFZ apparatus and experimental parameters that enable the growth of high-quality polycrystalline materials and single crystals, along with the most commonly produced materials and their relevant physical properties. Emphasis will be given to materials for photonics and optics, as well as for electrical applications, particularly superconducting and thermoelectric materials, and to the growth of metastable phases. Concomitantly, an analysis was carried out on how LFZ may contribute to further understanding equilibrium vs. non-equilibrium phase selectivity, as well as its potential to achieve or contribute to future developments in the growth of crystals for emerging applications.

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Section: Materials For Photonic and Optical Applicationsmentioning

confidence: 99%

Laser Floating Zone Growth: Overview, Singular Materials, Broad Applications, and Future Perspectives

et al. 2020

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“…Similar effects have been noted for LHPG using YAG as the host crystal. For neodymium doped YAG, Nd 3+ ions were observed to segregate toward the center [14,15], while for chromium doped YAG the Cr 4+ ions were observed to segregate toward the periphery [16].…”

Section: Introductionmentioning

confidence: 95%

Dopant segregation in single-crystal optical fiber grown via the laser-heated pedestal growth technique

Lander,

Wuenschell,

Lim

et al. 2024

Optical Waveguide and Laser Sensors III

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Single crystal (SC) optical fiber has promising potential to be used for optical fiber sensing applications in harsh conditions due to its robustness to high temperature, high radioactivity, and resistance to chemical corrosion as compared to optical sensors using silica fiber. However, SC fiber grown via the laser-heated pedestal growth (LHPG) technique innately does not have a core-cladding structure found in standard optical fiber, resulting in optical losses. In this work we investigate optimization of the growth parameters of a two LHPG process used to grow SC fiber with a graded index via introduction of dopants to the feedstock material. Feedstock material is fabricated with the first LHPG device, then sol-gel dip-coated to deposit outer films of dopant material. The dip-coated feedstock is used to grow SC fiber in which segregation of the dopant constituents occurs, resulting in a graded index of refraction across the fiber, and an effective core-cladding structure. Hardware and software improvements to both LHPG systems are presented and the growth parameters for short pieces of ~320-330 μm diameter YAG fiber has been established. Characterization techniques/procedures have also been established for future grown SC fiber. These improvements and preparations are anticipated to result in a significant increase in grown fiber quality with a similar growth rate to that previously established.

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Crystalline Fibers for Fiber Lasers and Amplifiers

Huang

2018

Handbook of Optical Fibers

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Simulation and experiment on laser-heated pedestal growth of chromium-doped yttrium aluminum garnet single-crystal fiber

Cited by 8 publications

References 26 publications

Laser Floating Zone Growth: Overview, Singular Materials, Broad Applications, and Future Perspectives

Laser Floating Zone Growth: Overview, Singular Materials, Broad Applications, and Future Perspectives

Dopant segregation in single-crystal optical fiber grown via the laser-heated pedestal growth technique

Crystalline Fibers for Fiber Lasers and Amplifiers

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