C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 3/32 (2006.01) H01S 3/17 (2006.01) H04B 10/12 (2006.01) H01S 3/16 (2006.01)
Patent
CA 2252708
A Ge-Ga-S-based glass composition having a light amplifying characteristic and an apparatus for optical communications using the glass composition are provided. The present invention includes a sulfur-poor Ge-Ga-S based host glass which includes less S than glass on a composition line of GeS2-Ga2S3 and a rare earth active material doped on the host glass for luminescence and light amplification. Here, Ga of no more than about 10 mol% is included in the host glass. Also, Pr3+ ions are used as the rare earth active material. Furthermore, for stable vitrification and a blue shift of a short wavelength absorption band, a vitrification stabilizer such as Br and 1 is added to the host glass. Also, the present invention includes an apparatus for performing optical communications such as a light amplifier using optical fiber comprised of the glass composition including the S-poor Ge-Ga-S host glass which includes less S than a glass on a composition line of GeS2-Ga2S3 and the rare earth active material doped on the host glass for the light amplification.
Heo Jong
Kim Hyoun-Soo
Park Se-Ho
Shin Dong-Wook
Shin Yong-Beom
Ridout & Maybee Llp
Samsung Electronics Co. Ltd.
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