Low bend loss optical fiber
An optical fiber includes a central glass core region comprising maximum refractive index delta percent 1, a first inner annular region surrounding said core comprising refractive index delta percent 2, a depressed annular region surrounding said inner annular region and comprising 3 and a third ann...
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Zusammenfassung: | An optical fiber includes a central glass core region comprising maximum refractive index delta percent 1, a first inner annular region surrounding said core comprising refractive index delta percent 2, a depressed annular region surrounding said inner annular region and comprising 3 and a third annular region surrounding the depressed annular region comprising refractive index delta percent 4; wherein the third annular region comprises chlorine an amount greater than 0.2 weight percent in a region which is within 5 microns from the depressed annular region, wherein 1MAX> 4> 2> 3. The difference between 4 and 2 is greater than 0.01 and profile volume, |V3| is at least 50% μm2. |
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