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What is the difference between 62.5/125 and 50/125 micron fibres?

April 26, 2017difference fibres Micron

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What is the difference between 62.5/125 and 50/125 micron fibres?

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The fundamental difference between the two is bandwidth, 50 micron being nearly three times the bandwidth of 62.5. At 850nm it is rated at 500 MHz/km verses 160 MHz/km. The 850nm wavelength is becoming more important as lasers are being developed and used more frequently as light sources for networks.