Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2008-06-10
2008-06-10
Font, Frank G (Department: 2883)
Optical waveguides
Optical fiber waveguide with cladding
C385S127000, C359S333000, C359S341100
Reexamination Certificate
active
07386209
ABSTRACT:
The specification describes an optical fiber device wherein a LOM is converted to an HOM prior to entering the gain section. The gain section is a few mode fiber that supports the HOM. The output from the gain section, i.e. the HOM, may be utilized as is, or converted back to the LOM. With suitable design of the few mode fiber in the gain section of the device, the effective area, Aeff, may be greater than 1600 μm2. The large mode separation in the gain section reduces mode coupling, allowing greater design freedom and reducing the bend sensitivity of the optical fiber.
REFERENCES:
patent: 5708669 (1998-01-01), DiGiovanni et al.
patent: 6614975 (2003-09-01), Richardson et al.
patent: 2003/0031407 (2003-02-01), Weisberg et al.
patent: 2006/0204188 (2006-09-01), Clarkson et al.
DiGiovanni David J.
Ramachandran Siddharth
Font Frank G
Kurukawa Electric North America, Inc.
Mooney Michael P
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