Optical fiber, dispersion compensator, and optical...

Details Optical fiber, dispersion compensator, and optical... Optical fiber, dispersion compensator, and optical...

2007-04-17

2007-04-17

Pak, Sung (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

C385S127000, C385S128000

Reexamination Certificate

active

10347417

ABSTRACT:
The present invention relates to a compact dispersion compensator and the like. The dispersion compensator comprises a housing and an optical fiber coil. The optical fiber coil has a coiled part constituted by a dispersion-compensating optical fiber wound like a coil while being in a bundle state with its winding distortion substantially eliminated. The housing is filled with a resin surrounding the coiled part of the optical fiber coil, whereas the coiled part is held by the resin. The dispersion-compensating optical fiber constituting the optical fiber coil has a chromatic dispersion of −140 ps
m/km or less at a wavelength of 1.55 μm, whereas the housing has a volume of 500 cm3or less. This configuration allows the dispersion compensator to attain an accumulated chromatic dispersion of −1200 ps
m/km or more but less than −600 ps
m at a wavelength of 1.55 μm.

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