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Broadband amplifier and communication system

  • US 6,356,384 B1
  • Filed: 04/11/2000
  • Issued: 03/12/2002
  • Est. Priority Date: 03/24/1998
  • Status: Expired due to Term
First Claim
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1. A method of broadband amplification, comprising:

  • dividing an optical signal with wavelength of 1430 nm to 1620 nm at a preselected wavelength into a first beam and a second beam;

    directing the first beam to a Raman amplifier assembly that includes a dispersion compensating fiber with a magnitude of dispersion of at least 50 ps/(nm)(km) to produce an amplified first beam;

    directing the second beam to at least one rare earth doped fiber amplifier and produce an amplified second beam; and

    combining the first and second amplified beams.

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