Semiconductor optical amplifier systems
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United States of America Patent
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May 4, 2004
Grant Date -
N/A
app pub date -
Jan 16, 2002
filing date -
Sep 6, 2001
priority date (Note) -
Expired
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Abstract
Semiconductor optical amplifier devices and optical amplifiers are provided for handling optical data signals carried on wavelength-division-multiplexing channels in fiber-optic links. The optical amplifiers may have multiple semiconductor optical amplifier devices separated by isolators to reduce backwards scattered light and thereby improve their output power handing capabilities. Waveguide structures on the semiconductor optical amplifier devices may be used to provide lateral light confinement during optical amplification. Nonuniform drive current densities may be used along the lengths of the semiconductor waveguide structures to support increased output powers.
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