On-chip fabrication of air-bubble-containing Nd3+-doped tellurite glass microsphere for laser emission | Zendy

Tetsuo Kishi | Zendy; Tsutaru Kumagai | Zendy; Tetsuji Yano | Zendy; Shuichi Shibata | Zendy

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On-chip fabrication of air-bubble-containing Nd3+-doped tellurite glass microsphere for laser emission

Author(s) -

Tetsuo Kishi,

Tsutaru Kumagai,

Tetsuji Yano,

Shuichi Shibata

Publication year - 2012

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4769888

Subject(s) - bubble , materials science , glass microsphere , laser , lasing threshold , substrate (aquarium) , fabrication , doping , wavelength , optoelectronics , laser power scaling , power density , liquid bubble , sapphire , optics , microsphere , power (physics) , chemical engineering , alternative medicine , oceanography , pathology , engineering , quantum mechanics , parallel computing , medicine , physics , geology , computer science

We fabricated an air-bubble-containing glass microsphere on a substrate by using localized heating technique. Nd3+-doped tellurite glass cullets on a substrate were melted by a CW-Ti:sapphire laser at the wavelength of 810 nm and with the power density of more than 4.8 MW/cm2 to obtain tellurite glass microspheres with the diameter of 5 to 200 μm. The localized heating technique using laser is useful to form a bubble at a certain place in the microsphere. Both air-bubble-containing and bubble-free spheres showed lasing actions at around the wavelength of 1065 nm. The average laser thresholds of the air-bubble-containing and bubble-free microspheres with the size of 20-50 μm were 0.78 mW and 5.25 mW, respectively

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