Single Crystal Fibers By The Laser-Heated Pedestal Growth Method

1985 ◽  
Vol 24 (6) ◽  
Author(s):  
H. S. Feiglson ◽  
W. L. Kway ◽  
R. K. Route
Keyword(s):  
Single Crystal ◽  
Growth Method ◽  
Crystal Fibers ◽  
Laser Heated

Growth of Single Crystal Yig Fibers by the Laser Heated Pedestal Growth Method

1997 ◽  
Vol 481 ◽  
Author(s):  
HanJin Lim ◽  
R. C. DeMattei ◽  
R. S. Feigelson
Keyword(s):  
Single Crystal ◽  
Growth Rates ◽  
Decomposition Temperature ◽  
Molten Zone ◽  
Nominal Composition ◽  
Vis Spectroscopy ◽  
Growth Method ◽  
Crystal Fibers ◽  
Iron Garnet ◽  
Laser Heated

ABSTRACTYttrium iron garnet (YIG) single crystal fibers of nominal composition Y3Fe5O12 were grown by the laser heated pedestal growth (LHPG) technique, a miniaturized floated-zone process. YIG which melts incongruently, was grown at a temperature below the peritectic decomposition temperature under self-adjusting conditions even though it has very narrow solidification region according to the Y2O3-Fe2O3 phase diagram. YIG fibers in diameter ranges from 100 to 750 μm were grown at various growth rates and conditions, and analyzed by x-ray diffraction, electron microprobe, and IR-VIS spectroscopy. Infrared transparent YIG fibers were grown at rates below 12 mm/h in air. At these growth rates, yttrium orthoferrite and iron-oxide inclusions within the YIG fiber, which act as IR scattering centers, were significantly reduced. The transparency of the fibers was more dependent on the growth rate than the stability of the molten zone. Surface ridges containing an Fe-rich composition were observed at all growth rates. These were associated with molten zone instability.

Growth of Optical Quality Sapphire Single Crystal Fibers

1989 ◽  
Vol 172 ◽  
Author(s):  
Dieter H. Jundt ◽  
Martin. M. Fejer ◽  
Robert. L. Byer
Keyword(s):  
Single Crystal ◽  
Near Infrared ◽  
Growth Dynamics ◽  
Damage Threshold ◽  
Optical Quality ◽  
Potential Applications ◽  
Growth Method ◽  
Sapphire Single Crystal ◽  
Crystal Fibers ◽  
Laser Heated

AbstractVoid-free sapphire single crystal fibers with diameters of 110 μm and 60 μm and lengths of over 2 m have been grown by the laser-heated pedestal growth method. The growth dynamics of the floating zone was studied and shows the features expected from a simple theoretical model. Optical losses have a minimum of 0.5 dB/m in the near infrared at 1064 nm. An absorption band centered at 400 nm results in losses of up to 20 dB/m in the visible. The fibers have potential applications in high temperature thermometry and in delivery systems for laser surgery. Absorption losses of 0.88 dB/m with a damage threshold higher than 1.2 kJ/cm2 at 2936 nm made tissue ablation feasible with fibers several meters in length.

Growth of Potassium Lithium Niobate Single-Crystal Fibers by the Laser-Heated Pedestal Growth Method

1997 ◽  
Vol 36 (Part 1, No. 9B) ◽  
pp. 5947-5949 ◽  
Author(s):  
Makoto Matsukura ◽  
Zhiming Chen ◽  
Masatoshi Adachi ◽  
Akira Kawabata
Keyword(s):  
Lithium Niobate ◽  
Single Crystal ◽  
Lithium Niobate Single Crystal ◽  
Growth Method ◽  
Crystal Fibers ◽  
Laser Heated

Growth of single crystal fibers for 1.3 μm optical amplifiers by the laser-heated pedestal growth method

1998 ◽  
Vol 33 (12) ◽  
pp. 1793-1799 ◽  
Author(s):  
Li Hsing Wang ◽  
Min Hsiung Hon ◽  
L.F Schneemeyer ◽  
G.A Thomas ◽  
W.L Wilson
Keyword(s):  
Single Crystal ◽  
Optical Amplifiers ◽  
Growth Method ◽  
Crystal Fibers ◽  
Laser Heated

Optical and scintillation properties of Ce:Y3Al5O12 single crystal fibers grown by laser heated pedestal growth method*

2021 ◽  
Author(s):  
Xibin Wang ◽  
Yun Dai ◽  
Zhonghan Zhang ◽  
Liangbi Su ◽  
Huamin Kou ◽  
...  
Keyword(s):  
Single Crystal ◽  
Growth Method ◽  
Crystal Fibers ◽  
Laser Heated

Mg-Doped Sapphire Crystal Fibers Grown by Laser-Heated Pedestal Growth Method

2006 ◽  
Vol 45 (1A) ◽  
pp. 194-199 ◽  
Author(s):  
Che-Ming Liu ◽  
Jyh-Chen Chen ◽  
Chang-Hung Chiang ◽  
Long-Jang Hu ◽  
Sheuan-Perng Lin
Keyword(s):  
Sapphire Crystal ◽  
Growth Method ◽  
Crystal Fibers ◽  
Laser Heated ◽  
Mg Doped
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