Patent ID: 6611372
Filing Date: 2003-08-26
Classification: C03C,H01S

Abstract:
A phosphate glass optical fiber amplifier, comprising:a phosphate glass fiber including the following ingredients by weight percentages, P2O5 from 30 to 80 percent, Er2O3 from 25 to 12 percent, L2O3 from 5 to 30 percent, MO from 5 to 30 percent, wherein MO is selected from the alkaline earth oxide group consisting of BaO, BeO, MgO, SrO, CaO, ZnO, PbO and mixtures thereof, and L2O3 is selected from the transition metal oxide group consisting of Al2O3, B2O3.Y2O3, La2O3, and mixes thereof; and a first optical pump configured to pump at least erbium ionic energy levels in said glass fiber, wherein introduction of an input optical signal produces stimulated emission and amplification of said input signal.