It is a bummer, if 40/100g optics existed that used 1550 or some other color 
than those could be muxed onto same fiber pair as 1310 optic (The method for 
passively doing that extraneous to this conversation. 


Regards, 

Mitchell T. Lewis 

[ mailto:[email protected] | [email protected] ] 


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

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From: "Luke Guillory" <[email protected]> 
To: "Lewis,Mitchell T." <[email protected]> 
Cc: "NANOG" <[email protected]> 
Sent: Tuesday, 19 June, 2018 13:09:08 
Subject: RE: Tunable QSFP Optics 






No, though the lane colors are irrelevant since we only care about the final 
output color. Why the lanes can’t be muxed into another output color I’m not 
sure, I can only find specs listed for the lanes but nothing for the final mux 
leaving the transceiver. 













        


        Luke Guillory 
        Vice President – Technology and Innovation 



        [ http://www.rtconline.com/ ] 

        
        Tel:    985.536.1212 
        Fax:    985.536.0300 
        Email:  [email protected] 
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        Reserve Telecommunications 
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From: Lewis,Mitchell T. [mailto:[email protected]] 
Sent: Tuesday, June 19, 2018 11:56 AM 
To: Luke Guillory 
Cc: NANOG 
Subject: Re: Tunable QSFP Optics 





So you weren't able to find anyone that uses different lane colors?(As an 
example 1550). I am not looking to mux alongside 10g waves, I am just looking 
to put 3 or 4 on a single fiber pair. 




        




        

Regards, 

Mitchell T. Lewis 

[ mailto:[email protected] | [email protected] ] 


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

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From: "Luke Guillory" < [ mailto:[email protected] | 
[email protected] ] > 
To: "Lewis,Mitchell T." < [ mailto:[email protected] | 
[email protected] ] >, "NANOG" < [ mailto:[email protected] | 
[email protected] ] > 
Sent: Tuesday, 19 June, 2018 12:53:07 
Subject: RE: Tunable QSFP Optics 





They still leave the transceiver as a single 1310, the lanes color isn't ever 
expose since the mux takes place within the transceiver. When I looked into 
this for 40g and 100g I found no way to passively do it. 






Luke Guillory 
Vice President – Technology and Innovation 

Tel: 985.536.1212 
Fax: 985.536.0300 
Email: [ mailto:[email protected] | [email protected] ] 

Reserve Telecommunications 
100 RTC Dr 
Reserve, LA 70084 

_________________________________________________________________________________________________
 

Disclaimer: 
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this e-mail by mistake and delete this e-mail from your system. E-mail 
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errors or omissions in the contents of this message, which arise as a result of 
e-mail transmission. . 

-----Original Message----- 
From: NANOG [ [ mailto:[email protected] | mailto:[email protected] 
] ] On Behalf Of Lewis,Mitchell T. 
Sent: Tuesday, June 19, 2018 11:42 AM 
To: NANOG 
Subject: Re: Tunable QSFP Optics 

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 

[ [ mailto:[email protected] | mailto:[email protected] ] | [ 
mailto:[email protected] | 
[email protected] ] ] 


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

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From: "Lewis,Mitchell T." < [ mailto:[email protected] | 
[email protected] ] > 
To: "NANOG" < [ mailto:[email protected] | [email protected] ] > 
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 

[ [ mailto:[email protected] | mailto:[email protected] ] | [ 
mailto:[email protected] | 
[email protected] ] ] 


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|203-816-0371 

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