Core of an optical patch cord and an optical signal...

Details Core of an optical patch cord and an optical signal... Core of an optical patch cord and an optical signal...

2006-06-13

2006-06-13

Pak, Sung (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

With graded index core or cladding

C385S141000

Reexamination Certificate

active

07062139

ABSTRACT:
The present invention discloses a core of an optical patch cord comprising a first end with a refraction index varying in a continuous manner along the radial direction, a second end including a blocking region at a radial center thereof, and a graded region extending from the first end to a predetermined position between the first end and the second end. The graded region has a refraction index distribution varying from the refraction index distribution of the first end to the refraction index distribution of the second end. The present optical signal transmission system comprises a multimode fiber and an optical patch cord including a first segment including a blocking region positioned at a radial center thereof and a second segment connected to the first segment for guiding a light beam into a region outside the blocking region of the first segment.

REFERENCES:
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patent: 6154589 (2000-11-01), Kirk et al.
patent: 6356680 (2002-03-01), Kirk et al.
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patent: 2003/0185530 (2003-10-01), White
“Catalyst 5000 Series Mode-Conditioning Patch Cord Installation Note”, Cisco Systems., Text Part No. 1, Jan. 4, 2001.
J.B. Schlager et al., “Annealed Optical Fibre Mode Scrambler” Electronics Letters, vol. 37, No. 1, Jan. 4, 2001.

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