Re: Optical jitter (was Grounding)

John Larkin wrote:

Well, the multimode fiber sucks, but dispersion of a few ps/m doesn't
translate to jitter of a few ps/m. My receiver bw is only about 200
MHz, so it takes more like hundreds of meters of fiber to start
affecting things.

I understand that there isn't a 1:1 correspondence, but the mode dispersion can make for some pretty weird variations of delay with temperature and vibration.

I'm just finishing up a 1310 nm singlemode link for some people who
are concerned about this, now that I've finally found a source for
affordable ST-housed Fabry-Perot 1310 lasers.

What speed do they go at? 1 GHz?

Cheers,

Phil Hobbs



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