How to get 1 or 2Km of optical fiber?

S. Dale Morrey sdalemorrey at gmail.com
Mon Mar 18 11:38:28 MDT 2013


Just curious, but does anyone know what utopia uses for their fiber
project?  The fiber, the terminals etc?

On Mon, Mar 18, 2013 at 12:18 PM, David Landry <dlandry at byu.net> wrote:
> On Mon, Mar 18, 2013 at 10:15 AM, Steve Alligood <steve at betterlinux.com>wrote:
>
>> naw, you can get 32+ colors on a pair of single mode fiber, it just isn't
>> cheap and has problems with different colors at different distances.
>>
>
> Maybe you can, but a single mode waveguide is designed to allow propagation
> of a single mode at a particular wavelength. That wavelength of that mode
> can be adjusted by changing core diameter and the index of refraction
> profile [0].
>
> I suppose you could couple other wavelengths into an evanescent mode along
> the cladding over a short enough distance, though. Are you referring to
> some particular product?
>
> ---
> David Landry
>
> [0] Single mode transmission happens at V < 2.4 (
> http://en.wikipedia.org/wiki/Normalized_frequency_(fiber_optics))
>
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