Patent ID: 6515795
Filing Date: 2003-02-04
Classification: C03B,C03C,G02B,H01S

Abstract:
An optical fiber amplification device, comprising:a borosilicate cladding that includes SiO2 having a concentration of about 40 mole percent to about 60 mole percent; B2O3 having a concentration of about 10 mole percent to about 30 mole percent; and a first compound selected from the group consisting of BaO, MgO, CaO, SrO, BaF2, MgF2, CaF2, SrF2, BaCl2, MgCl2, CaCl2, SrCl2, BaBr2, MgBr2, CaBr2, SrBr2, Li2O, Na2O, K2O, Rb2O, Cs2O, Li2F2, Na2F2, K2F2, Rb2F2, Cs2F2, Li2Cl2, Na2Cl2, K2Cl2, Rb2Cl2, Cs2Cl2, Li2Br2, Na2Br2, K2Br2, Rb2Br2, and Cs2Br2, and combinations thereof, and having a concentration of 10 mole percent to about 40 mole percent.