Have you checked out Flexoptix? https://www.flexoptix.net/en/transceiver/qsfp_
Tim On 12/18/17 9:01 AM, Baldur Norddahl wrote: > Hi > > What options are available for 40G QSFP+ and 100G QSFP28 for 10+ km links? > > I see a lot of switches offered with QSFP+ and QSFP28. But I do not seem > to find the necessary optics to build the links I want. > > For example, take a look at the options available at Fiberstore: > > https://www.fs.com/c/generic-40g-qsfp-891 > > Generic Compatible 40GBASE-LR4 and OTU3 QSFP+ 1310nm 10km LC Transceiver > for SMF > $340 > > Generic Compatible 40GBASE-ER4 and OTU3 QSFP+ 1310nm 40km LC Transceiver > for SMF > $1500 > > https://www.fs.com/c/generic-qsfp28-100g-transceivers-2858 > > Generic Compatible QSFP28 100GBASE-LR4 1310nm 10km Transceiver > $1999 > > Generic Compatible QSFP28 100GBASE-ER4 1310nm 40km Transceiver > $7000 > > That is it. Four modules and the 40km are prohibitive expensive. The > situation at other vendors appears to be similar. > > I need stronger modules that can do more than 10 km without being > extremely expensive. Or DWDM modules in the 1550 nm band so I can use > external amplifiers. Am I looking in the wrong place? Is this expected > to be available in the near future? > > Regards, > > Baldur