Glass for wavelength division multiplexing optical filter

Details Glass for wavelength division multiplexing optical filter Glass for wavelength division multiplexing optical filter

2006-08-15

2006-08-15

Sample, David (Department: 1755)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S070000, C428S426000, C428S428000, C428S432000, C428S446000

Reexamination Certificate

active

07091144

ABSTRACT:
The invention relates to first, second and third glasses for wavelength division multiplexing optical filters. The first glass contains 50–65 wt % of SiO2, 5–25 wt % of Na2O, 4–20 wt % of K2O, 0–20 wt % of CaO, 0–10 wt % of MgO, 0–10 wt % of BaO, 0–10 wt % of Al2O3, and 0–10 wt % of TiO2. The second glass contains 35–55 wt % of SiO2, 10–30 wt % of TiO2, 4–20 wt % of ZrO2, 5–25 wt % of Na2O, 0–10 wt % of Al2O3, 0–20 wt % of CeO2, 0–5 wt % of Li2O, 0–20 wt % of K2O, and 0–3 wt % of at least one metal oxide selected from MgO, CaO, SrO, BaO, and ZnO. The third glass contains 35–55 wt % of SiO2, 0–20 wt % of Al2O3, 0–10 wt % of B2O3, 1–35 wt % of TiO2, 1–15 wt % of CeO2, 0–10 wt % of Li2O, 5–25 wt % of Na2O, and 0–20 wt % of K2O.

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European Search Report dated Sep. 23, 2003.
Japanese Industrial Standard (JIS) R 3502.

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