Dispersion shifted optical waveguide fiber
Optical fiber having a low-dispersion slope in the erbium amplifier region
Optical fiber waveguide
Large effective area waveguide fiber Patent #: 6687441
ApplicationNo. 10295873 filed on 11/18/2002
US Classes:385/123, OPTICAL FIBER WAVEGUIDE WITH CLADDING385/100, OPTICAL TRANSMISSION CABLE385/115OPTICAL FIBER BUNDLE
ExaminersPrimary: Palmer, Phan T. H.
Assistant: Doan, Jennifer
Attorney, Agent or Firm
International ClassG02B 616
AbstractProvided is an optical fiber that is in particular suitable for Raman amplification. An effective area at a wavelength of 1570 nm is in a range of 35 μm2 to 45 μm2, an absolute value of a dispersion slope at the wavelength is equal to or less than 0.04 ps/nm2/km, and a dispersion value at the wavelength is in a range of 5 ps/nm/km to 10 ps/nm/km. It is desirable that a refractive index profile contains at least one annular region between a center core and a cladding region.