Optical fiber with a large effective area
OwnerPramod R. Watekar, Malleswara Rao Lanke +1inventors
InventorsPramod R. Watekar, Malleswara Rao Lanke, Arvind Mishra
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Abstract
The present invention relates to an optical fiber (200) having a core (202) extending along a central axis (206) and a cladding (204) concentrically surrounding the core (202). The core (202) has at least 83-mole percent (mol %) of Silicon dioxide (SiO2) and at most 17-mole percent (mol %) of an up-dopant and, the cladding (204) has at least 99-mole percent (mol %) of Silicon dioxide (SiO2). Further, the optical fiber (200) has (i) an effective area of greater than or equal to 100 μm2, (ii) a mode field diameter (MFD) in a range of 11 μm to 15 μm, and (iii) a chromatic dispersion of less than or equal to 23.5 picoseconds (ps/(Km·nm) at a wavelength of 1550 nm.
Claims18
An optical fiber (200) comprising:
- a core (202) having at least 83 mole percent (mol %) of Silicon dioxide (SiO2), wherein the core (202) has at least one up dopant, wherein the core (202) has a refractive index (RI) profile defined by a centerline dip at a central axis (206);
- a cladding (204) that concentrically surrounds the core (102), wherein the cladding (204) has at least 99 mole percent (mol %) of Silicon dioxide (SiO2);
- wherein, the optical fiber (200) has
- (i) an effective area is greater than or equal to 100 micrometers square (μm2),
- (ii) a mode field diameter (MFD) in a range of 11 micrometer (μm) to 15 μm.
Dependencies are inferred from the claim text.