Double clad rare earth doped fiber

Details Double clad rare earth doped fiber Double clad rare earth doped fiber

2006-11-21

2006-11-21

Lee, John D. (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

C385S142000

Reexamination Certificate

active

07139458

ABSTRACT:
An optical fiber comprising: (i) a silica based, rare earth doped core having a first index of refraction n1; (ii) a silica based inner cladding surrounding the core having a second index of refraction n2, such that n1>n2; (iii) a silica based outer cladding surrounding the inner cladding having a third index of refraction n3such that n2>n3, wherein inner cladding diameter is at least 125 μm.

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