Optical waveguides – Accessories – Attenuator
Reexamination Certificate
2007-10-09
2007-10-09
Font, Frank G. (Department: 2883)
Optical waveguides
Accessories
Attenuator
C385S123000, C385S126000, C385S031000, C385S038000, C385S039000
Reexamination Certificate
active
11202568
ABSTRACT:
Apparatus and methodology for the low coupling of optical fibers in high power applications. An end of a single mode optical fiber, or a polarization maintaining fiber, is cut and spliced to a relatively short segment of an index matched multi-mode fiber or an optical fiber without cladding (air cladded) having approximately similar diameter as the single mode fiber which in turn is coupled to the external device. The free end of the multi-mode fiber may be cleaved, polished and have an anti-reflection applied to it. The beam emitted by the small core of the single mode optical fiber expands into the larger core of the multi-mode fiber providing low loss high power coupling of the optical fiber to the external device.
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Findakly Talal K.
Kokkelink Jan W.
Ferrell Michael W.
Font Frank G.
Lepisto Ryan
Micro Optics, Inc.
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