[115131] in North American Network Operators' Group
Re: Eye protection in DWDM systems -- what threshold?
daemon@ATHENA.MIT.EDU (Kevin Loch)
Tue Jun 9 18:18:58 2009
Date: Tue, 09 Jun 2009 18:17:05 -0400
From: Kevin Loch <kloch@kl.net>
CC: "nanog@nanog.org" <nanog@nanog.org>
In-Reply-To: <20090609212642.GO51443@gerbil.cluepon.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> On Tue, Jun 09, 2009 at 04:06:58PM -0400, Deepak Jain wrote:
>> This conversation has gone places I didn't expect. Leo, that card is
>> pretty cool, but for a few hundred $$ more, you can get a light meter
>> (if someone is smart enough to use the card...)
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
