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Proceedings Article

Bi2O3-based glass for S-band amplification

[+] Author Affiliations
Seiki Ohara, Naoki Sugimoto, Yuki Kondo, Katsuhiro Ochiai, Yutaka Kuroiwa, Yasuji Fukasawa, Takeshi Hirose, Setsuhisa Tanabe

Asahi Glass Co., Ltd. (Japan)

Hideaki Hayashi

Kyoto Univ. (Japan)

Proc. SPIE 4645, Rare-Earth-Doped Materials and Devices VI, 8 (April 5, 2002); doi:10.1117/12.461656
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From Conference Volume 4645

  • Rare-Earth-Doped Materials and Devices VI
  • Shibin Jiang; Robert W. Keys
  • San Jose, CA | January 18, 2002

abstract

Bi2O3-based thulium (Tm3+) doped glass fiber (Bi-TDF) for S-band amplification was investigated. Tm3+ was doped in Bi2O3-SiO2 based glass and melted using a conventional method. Emission spectra of the 3H4 - 3F4 were measured with pumping at a wavelength of 792 nm using laser diode (LD). Full width of half maximum (FWHM) of the emission is 1.4 times and 1.1 times broader than that of fluoride glass and tellurite glass, respectively. Moreover, the emission peak shifted towards longer wavelength as compared with fluoride and tellurite glasses. Single mode Bi-TDFs with Tm3+ concentrations of 2000 ppm, 3900 ppm and 6000 ppm were fabricated and evaluated with fusion splicing to SiO2 fibers. Gain profiles were measured with bi-directional pumping using 1047 nm Yb fiber lasers. The gain-peaks observed around 1470 nm shifted towards longer wavelength with increasing Tm3+ concentration. Gain properties of Bi-TDF were improved by additional pumping at the wavelength of 1560 nm with Tm3+ concentrations of 2000 ppm and 3900 ppm. A maximum gain over 10 dB of Bi-TDF was obtained using a fusion spliceable Bi-TDF with a length of only 100 cm.

© (2002) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Seiki Ohara ; Naoki Sugimoto ; Yuki Kondo ; Katsuhiro Ochiai ; Yutaka Kuroiwa, et al.
"Bi2O3-based glass for S-band amplification", Proc. SPIE 4645, Rare-Earth-Doped Materials and Devices VI, 8 (April 5, 2002); doi:10.1117/12.461656; http://dx.doi.org/10.1117/12.461656


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