Zhejiang Futong Optical Fiber Technology Corporation Ltd.

Fuyang, China

Zhejiang Futong Optical Fiber Technology Corporation Ltd.

Fuyang, China
SEARCH FILTERS
Time filter
Source Type

Wu J.,Zhejiang Futong Optical Fiber Technology Co. | Wu J.,Zhejiang University | Chen D.,CAS Shanghai Institute of Optics and fine Mechanics | Lu W.,Zhejiang Futong Optical Fiber Technology Co. | And 3 more authors.
Guangxue Xuebao/Acta Optica Sinica | Year: 2011

The modified chemical vapor deposition (MCVD) and solution-doping method is applied to the fabrication of Bi-doped silica optical fiber preforms. Bi-doped SiO2-Al2O3-GeO2 fibers with near-infrared broadband emission are realized. The characteristic spectra of preforms with different Ge-codoped concentrations fabricated under various oxygen fluxes are experimentally investigated. The luminescence spectra from slices of fabricated preforms show an emission at 1146 nm with full width at half maximum (FWHM) of 204 nm when the preform is excited at 532 nm, and an emission at 1281 nm with FWHM of 250 nm when the preform is excited at 808 nm, respectively. The luminescence spectra of corresponding fibers show an emission at 1265 nm with FWHM of 280 nm when the preform is excited at 808 nm, and an emission at 1125 nm with the broadest FWHM of 460 nm when the preform is excited at 976 nm, respectively. The differences in emission between preform and fiber can be manipulated through controlling fabrication process of preform, so that the Bi-doped fiber with a suitable fluorescence and laser performance may be obtained.


Wu J.,Zhejiang University | Wu J.,Zhejiang Futong Optical Fiber Technology Corporation Ltd. | Chen D.,CAS Shanghai Institute of Optics and fine Mechanics | Wu X.,Zhejiang University | And 2 more authors.
Chinese Optics Letters | Year: 2011

Bi-doped SiO2-Al2O3-GeO2 fiber preforms are prepared by modified chemical vapor deposition (MCVD) and solution doping process. The characteristic spectra of the preforms and fibers are experimentally investigated, and a distinct difference in emission between the two is observed. Under 808-nm excitation, an ultra-broad near-infrared (NIR) emission with full-width at half-maximum (FWHM) of 495 nm is observed in the Bi-doped fiber. This observation, to our knowledge, is the first in this field. The NIR emission consists of two bands, which may be ascribed to the Bi0 and Bi+ species, respectively. This Bi-doped fiber is promising for broadband optical amplification and widely tunable laser. © 2011 Chinese Optics Letters.


Zhang L.,South China University of Technology | Dong G.,South China University of Technology | Wu J.,Zhejiang University | Wu J.,Zhejiang Futong Optical Fiber Technology Corporation Ltd. | And 2 more authors.
Journal of Alloys and Compounds | Year: 2012

We report on excitation wavelength-dependent near-infrared luminescence from Bi-doped silica glass prepared by chemical vapor deposition technique. The peak position of the emission bands shows a complex change between 1120 nm and 1270 nm with increasing excitation wavelength from 280 nm to 980 nm. This behavior can be well explained by existence of two kinds of Bi active centers, Bi 0 and Bi +, which contribute to the NIR emissions at 1120 nm and 1267 nm, respectively. © 2012 Elsevier B.V. All rights reserved.

Loading Zhejiang Futong Optical Fiber Technology Corporation Ltd. collaborators
Loading Zhejiang Futong Optical Fiber Technology Corporation Ltd. collaborators