OPTICAL AMPLIFIER SYSTEM OF 1.6 MICROMETER BAND

摘要

PURPOSE: An optical amplifier system of 1.6 micrometer band is provided to be capable of being used in 1600-1650nm band using near infrared rays radiated from amorphous material having praseodymium ions(Pr+3) added. CONSTITUTION: The optical amplifier system comprises optical material with representative substantial phonon energy of 320 cmexp(-1), praseodymium ions(Pr+3) doped into the optical material, and an exciter for inducting fluorescent transition of 1.6 micrometer band by pumping the optical material. In addition, the optical amplifier system may further comprise erbium ions as a synthesizer doped into the optical material. The adding amount of the praseodymium ions(Pr+3) is substantially 0.1 mole% or less. Further, it is preferable that the optical material is praseodymium system glass.