Patent · US Expired

Low dispersion slope negative dispersion optical fiber

US6324327A · kind A · utility

3Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 24, 2000
Grant dateNov 27, 2001
Priority date—
Expiry dateOct 24, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/03611
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Disclosed is a segmented core optical waveguide fiber having low total dispersion slope and negative total dispersion over an extended wavelength window. A wavelength window of particular interest is that in the range of about 1500 nm to 1600 nm. The waveguide fibers in accordance with the invention also have cabled cut off wavelength below about 1480 nm and attenuation at 1550 nm of less than 0.22 dB/km. Mode field diameter is maintained essentially at the nominal value for dispersion shifted waveguide fiber, i.e., 7.7 .mu.m to 8.7 .mu.m. Embodiments having a center segment and a first and a second annular segment are discussed in detail.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.