An optical waveguide fiber having a relatively large effective area which exhibits low attenuation, low PMD and low microbending sensitivity. A step-index refractive index profile is advantageously used.

Оптически волокно волновода имея относительно большую полезную площадь exhibits низкая амортизация, низкое PMD и чувствительность низкого уровня microbending. Профиль рефрактивного индекса шаг-indeksa выгодн использован.

 
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