Fiber for reduced polarization effects in amplifiers

Details Fiber for reduced polarization effects in amplifiers Fiber for reduced polarization effects in amplifiers

1997-09-25

1998-10-13

Palmer, Phan T. H.

Optical waveguides

Optical fiber waveguide with cladding

385121, 385 28, 65402, 65390, 372 6, G02B 602, G02B 616

Patent

active

058224874

ABSTRACT:
A single mode optical fiber suitable for use in an amplified fiber optic system which includes an inner glass core doped with a rare earth element and an outer transparent glass cladding. The fiber exhibits a plurality of mode coupling sites formed at regular intervals along the length of the fiber which provides for a reduced DOP. The sites are formed by a twist at regular intervals along the fiber length by applying a torque to the fiber. The method of forming the fiber is also disclosed.

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