Re: Tunable QSFP Optics

["Lewis,Mitchell T." <ml-nanog () techcompute net>]

Let me clarify a bit-I understand that 40GBase-LR4 uses 4 10g wavelengths(lanes) which typically are: 
1264.5- 1277.5 nm 
1284.5–1297.5 nm 
1304.5–1317.5 nm 
1324.5–1337.5 nm 
My question is are there any vendors that make optics which 4 wavelengths(lanes) are something other than those 
typically used by 40GBase-LR4? 


Regards, 

Mitchell T. Lewis 

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From: "Lewis,Mitchell T." <ml-nanog () techcompute net> 
To: "NANOG" <nanog () nanog org> 
Sent: Tuesday, 19 June, 2018 12:27:13 
Subject: Tunable QSFP Optics 

Does anyone know if any Single Mode QSFPs exist on the market that use wavelengths other than 1310nm (either self 
tunable or factory tuned)? I am looking to put more than one 40gb link on a fiber pair similar to using DWDM OADMs for 
1g & 10g but can't seem to find any qsfp optics that don't use 1310nm. 

Thanks. 


Regards, 

Mitchell T. Lewis 

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[ http://linkedin.com/in/mlewiscc ] |203-816-0371 

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