AUTO-CLADDED LARGE-CORE OPTICAL FIBERS
First Claim
Patent Images
1. An all-glass fiber comprising:
- a core and cladding material, said core and cladding material comprising an interface, said core and cladding material selected from substantially identical glasses,said fiber configured to support low-loss propagation of at least the lowest-order core mode,wherein said fiber comprises at least one of an index trough at the core-cladding interface and an index gradient within said core.
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Abstract
Embodiments of auto-cladded optical fibers are described. The fibers may have a refractive index profile having a small relative refractive index change. For example, the fiber may include an auto-cladded structure having, e.g., a trough or gradient in the refractive index profile. A beam of light propagating in the fiber may be guided, at least in part, with the auto-cladded structure. In some embodiments, the optical fiber may be all glass. In some embodiments, the optical fiber may include a large-core or an ultra large-core.
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Citations
44 Claims
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1. An all-glass fiber comprising:
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a core and cladding material, said core and cladding material comprising an interface, said core and cladding material selected from substantially identical glasses, said fiber configured to support low-loss propagation of at least the lowest-order core mode, wherein said fiber comprises at least one of an index trough at the core-cladding interface and an index gradient within said core. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 40)
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13. An all-glass fiber comprising a core and cladding material, said core and cladding material further having a common interface, said core and cladding material selected from glasses with an index differential less than about 10−
- 4, said fiber further comprising an index trough at the core-cladding interface.
- View Dependent Claims (14, 15, 16, 17, 18)
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19. An all-glass fiber amplifier comprising:
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a rare-earth doped core and cladding material, said core and cladding material comprising an interface; a near diffraction-limited pump source coupled into said rare-earth doped core; said rare-earth doped core configured to amplify at least the lowest-order core mode, wherein said fiber amplifier comprises at least one of an index trough at the core-cladding interface and an index gradient within said core. - View Dependent Claims (20, 24)
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21. -23. (canceled)
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25. -39. (canceled)
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41. -42. (canceled)
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43. A multi-core fiber amplifier comprising a fiber comprising multiple cores, the amplifier further comprising:
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an optical pump source; and an optical signal source, said optical pump source configured to be delivered into at least some of said multiple cores via a diffractive beam splitter.
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44. -49. (canceled)
Specification