Bi2O3-based glass for S-band amplification

Seiki Ohara; Naoki Sugimoto; Yuki Kondo; Katsuhiro Ochiai; Yutaka Kuroiwa; Yasuji Fukasawa; Takeshi Hirose; Hideaki Hayashi; Setsuhisa Tanabe

doi:10.1117/12.461656

5 April 2002 Bi₂O₃-based glass for S-band amplification

Seiki Ohara, Naoki Sugimoto, Yuki Kondo, Katsuhiro Ochiai, Yutaka Kuroiwa, Yasuji Fukasawa, Takeshi Hirose, Hideaki Hayashi, Setsuhisa Tanabe

Author Affiliations +

Proceedings Volume 4645, Rare-Earth-Doped Materials and Devices VI; (2002) https://doi.org/10.1117/12.461656
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

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.

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Seiki Ohara, Naoki Sugimoto, Yuki Kondo, Katsuhiro Ochiai, Yutaka Kuroiwa, Yasuji Fukasawa, Takeshi Hirose, Hideaki Hayashi, and Setsuhisa Tanabe "Bi₂O₃-based glass for S-band amplification", Proc. SPIE 4645, Rare-Earth-Doped Materials and Devices VI, (5 April 2002); https://doi.org/10.1117/12.461656

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