Chromatic dispersion compensating fiber

Details Chromatic dispersion compensating fiber Chromatic dispersion compensating fiber

2008-04-08

2008-04-08

Wong, Tina M. (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

C385S123000, C385S126000

Reexamination Certificate

active

07356234

ABSTRACT:
Disclosed is a chromatic dispersion compensating optical fiber comprising a central core, an intermediate cladding having a width (r2−r1) of 2.0 microns or greater, and a depressed inner cladding having a refractive index difference Dn3with the external optical cladding of −3.0×10−3or lower. At a wavelength of 1550 nm, the optical fiber exhibits a positive chromatic dispersion of 21 ps/(nm·km) or higher and a ratio of mode radius to intermediate cladding radius of (W02/r2) of 0.7 or less. The present optical fiber has a good figure of merit value and limited bending and microbending losses. The optical fiber can be rolled up in a housing of reduced size in a chromatic dispersion compensating optical module having limited insertion losses and reduced polarization mode dispersion.

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French Search Report and Written Opinion dated Jan. 9, 2007 in French application No. 06/03928.

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