Optical amplifier
AssigneeElectronics and Telecommunications Research Institute
InventorsYong Gyu Choi, Kyong Hon Kim
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Abstract
An optical amplifier of the present invention is implemented by using a low phonon energy glass doped with praseodymium ions (Pr3+), whereby a wavelength of 1.6 μm band can be used for an optical transmission. The optical amplifier for amplifying an optical signal includes a low phonon energy optical medium doped with praseodymium ions (Pr3+) for utilizing as a gain medium to the optical signal, and a pumping means for pumping the low phonon energy optical medium, thereby to obtain an amplified optical signal.
Claims23
An optical amplifier for amplifying an optical signal, comprising:
- a low phonon energy optical medium doped with praseodymium ions (Pr3+) for utilizing as a gain medium to the optical signal;
- and
- a pumping means for pumping the low phonon energy optical medium to thereby obtain an amplified optical signal in 1,600˜1,700 nm range,
- wherein erbium ions (Er3+) are co-doped into the low phonon energy optical medium as a sensitizer.
An optical gain medium, comprising:
- a low phonon energy material;
- praseodymium ions doped into the low phonon energy material;
- and
- erbium ions co-doped into the low phonon energy material as a sensitizer ion.
Dependencies are inferred from the claim text.