10GE CWDM

Alex Pilosov alex at pilosoft.com
Sat Aug 30 20:17:24 CDT 2008


On Sun, 31 Aug 2008, Nitzan Tzelniker wrote:

> Hi,
> 
> Look here
> 
> http://www.btisystems.com/news/releases/Goldfield_Telecom.php
These are XFP-based. Thus, not a solution to the problem above.

Answer: Nobody's making 10GE CWDM-wavelength lasers. Why? I don't have 
enough knowledge of optical equipment, but my understanding is that 
it is because:

a) Currently DWDM component suppliers already have a full load of 
orders and have problems scaling production - as evidenced by long 
lead times on any DWDM optics.

b) They wouldn't be much cheaper to produce than 
temperature-stabilized DWDM optics.

c) The demand is currently for amplifiable DWDM optics.

-alex





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