Optical: systems and elements – Optical amplifier
Reexamination Certificate
2006-07-11
2006-07-11
Hughes, Deandra M. (Department: 3663)
Optical: systems and elements
Optical amplifier
C385S129000
Reexamination Certificate
active
07075708
ABSTRACT:
The present invention relates to a waveguide amplifier which is comprised of silica or silica-related material co-doped with silicon nanoclusters and rare earth elements, and more particularly, to a waveguide amplifier with higher efficiency enhanced by top-pumping method and focusing means for pumping light. The waveguide amplifier of the present invention comprises of: (a) a substrate; (b) an optical waveguide including: a lower cladding layer formed on the substrate; a core layer which is made of silica or silica-related material co-doped with silicon nanoclusters and rare earth elements on the lower cladding layer and has a refractive index higher than that of the lower cladding; and an upper cladding layer formed on the core layer; and (c) a light source, spaced apart from the waveguide, for optically pumping the waveguide, wherein the waveguide amplifier operates by exciting the rare earth elements through electron-hole combinations in the silicon nanoclusters.
REFERENCES:
patent: 6661035 (2003-12-01), Negro et al.
patent: 6710366 (2004-03-01), Lee et al.
patent: 6785304 (2004-08-01), Filgas
patent: 6822305 (2004-11-01), Hunt
patent: 2003/0156319 (2003-08-01), John et al.
patent: 2004/0106285 (2004-06-01), Zacharias
patent: 2005/0077526 (2005-04-01), Shin et al.
patent: 2006/0012853 (2006-01-01), Tallone et al.
patent: 1 000 949 (2000-05-01), None
patent: 11014841 (1999-01-01), None
patent: 2002110573 (2002-04-01), None
patent: 970006019 (1997-02-01), None
Shimizu et al. Design of Semiconductor-waveguide-type optical isolators using the nonreciprocal loss/gain in the magneto-optical waveguides having MnAs nanoclusters. Applied Physics Letters. vol. 81. No. 27. Dec. 30, 2002. pp. 5246-5248.
English Language Abstract of Korean Patent Application No. 970006019.
Han Hak-Seung
Park Nam-Kyoo
Shin Jung-Hoon
Hughes Deandra M.
Luxpert Technologies Co., Ltd.
Marger & Johnson & McCollom, P.C.
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