Nonlinear polarization amplifiers in nonzero dispersion shifted fiber
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United States of America Patent
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Jul 19, 2005
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app pub date -
Jul 25, 2003
filing date -
May 5, 2000
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Abstract
A broadband fiber transmission system includes a transmission line with at least one zero dispersion wavelength λo and transmits an optical signal of λ. The transmission line includes a distributed Raman amplifier that amplifies the optical signal through Raman gain. One or more pump sources are included and operated at wavelengths λp for generating a pump light to pump the Raman amplifier. λ is close to λ0 and λ0 is less than 1540 nm or greater than 1560 nm.
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