I have mixed them before.  No problems.  


From: Trey Scarborough 
Sent: Friday, December 22, 2023 9:38 AM
To: af@af.afmug.com 
Subject: Re: [AFMUG] WDM transceivers

Yes it will work just need to make sure your not on one of the DWDM channels 
towards the edge of the filter. It will more than likely work just they tend to 
have more loss. Choose a channel in the middle for best results. Its actually 
the least expensive way of adding WDM into a network. CWDM filters are 
typically cheaper than DWDM and DWDM optics are less expensive than WDM because 
there more widely used.

Optical filters are just like RF filters as long as you are operating in the 
range of the filters channel it will work. You just have to be careful about 
power levels and adjacent channel interference as WDM optics tend to have highr 
TX power and less sensitive receivers. 

Trey


On 12/20/23 4:36 PM, dmmoff...@gmail.com wrote:

  Dumb question of the week:



  Could I run a pair of DWDM transceivers through a CWDM multiplexer and expect 
it to work?  I’d only be using a small slice of the channel, but if the DWDM 
wavelength is encompassed by the larger CWDM wavelength then that light should 
still reach the intended destination, right?

   

   


   


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