Eye protection in DWDM systems -- what threshold?

Tue Jun 9 23:46:33 UTC 2009

----- Original Message ----- 
From: "Kevin Loch" <kloch at kl.net>
Cc: <nanog at nanog.org>
Sent: Tuesday, June 09, 2009 12:17 PM
Subject: Re: Eye protection in DWDM systems -- what threshold?

> In a pinch the camera on a MacBook pro can be used to detect
> presence of IR light.  Here's light from a 10Gbase-LR xenpak:
> 
> http://www.majhost.com/gallery/kl/Macbook/macbook-laser-camera.jpg
> 
> It's easier to see when previewing in real time than
> in the static picture but it does require careful aim.
> 
> - Kevin

Most 'cell phone' cameras also detect IR.  Handy to verify that A/V equipment "Remotes" are working.

--Michael