Title:
光ファイバ、光コヒーレンストモグラフィ装置、及び光ファイバレーザ
Document Type and Number:
Japanese Patent JP4914037
Kind Code:
B2
Abstract:
The present invention relates to fluorescent glass which is easily put into practical use, and optical elements including the same. In one aspect, the fluorescent glass is comprised of silica-based glass containing Bi as a dopant, and adapted to generate fluorescence in response to pumping light in a wavelength band of 980 nm incident thereon. In another aspect, the fluorescent glass contains at least one species of transition metal as a dopant, and exhibits a 980-nm band absorption spectrum having a full width at half maximum exceeding 10 nm. In still another aspect, the fluorescent glass is comprised of silica-based glass containing at least one species of transition element as a dopant, and exhibits a fluorescence spectrum with a peak intensity fluctuating within a range of −1 dB or more but 1 dB or less with respect to pumping light having a fixed intensity in a state set to a temperature of −5° C. or more but 65° C. or less.
Inventors:
Motoki Tsunoi
Tetsuya Haruna
Takahiro Murata
Tetsuya Haruna
Takahiro Murata
Application Number:
JP2005209037A
Publication Date:
April 11, 2012
Filing Date:
July 19, 2005
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
Kyushu University
Kyushu University
International Classes:
H01S3/06; C03B37/023; C03C13/04; G01N21/17; G02B6/00; H01S3/17
Domestic Patent References:
| JP2002068779A | ||||
| JP2002252397A | ||||
| JP2003283028A | ||||
| JP11029334A |
Foreign References:
| WO2006093141A1 |
Other References:
毛利哲也, 村田貴広, 森永健次,Bi2O3ドープガラスの光学特性の組成依存性,第41回セラミックス基礎科学討論会講演要旨集,2003年 1月22日,pp.336-337
Xian-geng Meng, et al,Near infrared broadband emission of bismuth-doped aluminophosphate glass,OPTICS EXPRESS,2005年 3月 7日,Vol.13, No.5,pp.1628-1634
Yasushi FUJIMOTO and Masahiro NAKATSUKA,Infrared Luminescence from Bismuth-Doped Silica Glass,Japanese Journal of Applied Physics,2001年 3月15日,Vol.40,pp.L279-L281
Xian-geng Meng, et al,Near infrared broadband emission of bismuth-doped aluminophosphate glass,OPTICS EXPRESS,2005年 3月 7日,Vol.13, No.5,pp.1628-1634
Yasushi FUJIMOTO and Masahiro NAKATSUKA,Infrared Luminescence from Bismuth-Doped Silica Glass,Japanese Journal of Applied Physics,2001年 3月15日,Vol.40,pp.L279-L281
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Masatoshi Shibata
Shiro Terasaki
Masatoshi Shibata