Large effective area optical fiber

Details Large effective area optical fiber Large effective area optical fiber

2008-10-23

2010-12-14

Hahm, Sarah (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

Reexamination Certificate

active

07853110

ABSTRACT:
An optical fiber comprising: (i) a glass core (20) extending from a centerline and including a central core region (22) with an alpha value of less than 2, a first annular core region (24)surrounding the central core region (22), and a second annular core region (26) surrounding the first annular core region (24), wherein the second annular core region (26) has a higher maximum relative refractive index percent Δ26MAXthan that maximum relative refractive index percent Δ24MAXof the first annular core region (24); and (ii) a glass cladding (30) surrounding and in contact with the core (20), the cladding comprising: (a) a first annular cladding region (32) extending from a radius RC3to a radius R32, (b) a second annular cladding region (34) extending from the radius R32to a radius R34, (c) a third annular cladding region (36) surrounding the second annular region (34) and extending from the radius R34to an outermost glass radius R36; wherein the core (20) comprises a maximum relative refractive index percent ΔCMAX; wherein said first annular cladding region (32) comprises relative refractive index percent Δ32(r) % the second annular cladding region (34) comprises a minimum relative refractive index percent, Δ34 MIN, wherein ΔCMAX>Δ32MAX>Δ34MIN, and Δ34MIN<−0.1; and wherein the core and the cladding provide a fiber with cable cutoff less than 1500 nm, dispersion at 1550 nm 3 to 6 ps
m/km, and an effective area at 1550 nm greater than 75 μm2. The second annular cladding region may contain a plurality of randomly dispersed holes.

REFERENCES:
patent: 6317551 (2001-11-01), Mitchell et al.
patent: 6477305 (2002-11-01), Berkey et al.
patent: 6904772 (2005-06-01), Berkey et al.
patent: 7106934 (2006-09-01), Mishra
patent: 7139458 (2006-11-01), Koh et al.
patent: 7203407 (2007-04-01), Berkey et al.
patent: 7313312 (2007-12-01), Kimball et al.
patent: 7603015 (2009-10-01), Bickham et al.
patent: 2002/0197039 (2002-12-01), Carter et al.
patent: 2004/0067034 (2004-04-01), Rosenblum et al.
patent: 2004/0105642 (2004-06-01), Bickham
patent: 2005/0094954 (2005-05-01), Pickrell et al.
patent: 2005/0111805 (2005-05-01), Hertz et al.
patent: 2006/0120678 (2006-06-01), Manyam et al.
patent: 2008/0304800 (2008-12-01), Bickham et al.
patent: 0721119 (1995-06-01), None
patent: 1564569 (2004-02-01), None
patent: 00/19255 (2000-04-01), None
patent: 01/11402 (2001-02-01), None
patent: 01/38911 (2001-05-01), None
patent: 01/47822 (2001-07-01), None
patent: 2007/055881 (2007-05-01), None
“A new design for non-zero dispersion-shifted fiber (NZ-DSF) with a large effective area over 100 μm2and low bending and splice loss”; Yin et al' Optics Communications 177 (2000) 225-232.
Single-Mode Fiber Optics; Luc B. Jeunhomme, Principles and Applications—Second Edition, Revised and Expanded; Photonetics; Marly le Roi. France; pp. 39-44.

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