Re: Angled Polish Connectors and DWDM

[Aaron Glenn <aaron.glenn () gmail com>]

On Sun, Sep 30, 2012 at 11:52 AM, Igor Ybema <igor () ergens org> wrote:
> Hi Aaron,
>
> > Are there situations when angled connectors are not
> > to be used? Are they 'safe' or even recommended for any kind of DWDM
> > application?
>
> To my knowledge APC is always better than PC connectors. APC are used
> to eliminate back reflections. Due to the angled connector reflections
> are sent mostly towards the cladding and not the core and therefore.

Indeed. I have always held the idea that APC connectors induced
greater chromatic and/or polarization mode dispersion -- yet can't
find any resources that claim so, nor does that fit in with my working
mental model of how light propagates. Just something I picked up
during the hellish days of trying to deploy 10GbE before it was cool;
now I'd like to know if it is grounded in any science (-:

Thanks
aaron