Patent classifications
G
PHYSICS
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G02
OPTICS
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G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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6/00
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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G02B6/02
Optical fibres with cladding; with or without a coating
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G02B6/028
with core or cladding having graded refractive index
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G02B6/0283
Graded index region external to the central core segment, e.g. sloping layer or triangular or trapezoidal layer
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