30 Oct
2020
30 Oct
'20
10:33 a.m.
You may also find that 100G PAM4 could work. There are some vendors that sell the optic, and an outboard EDFA + DCF pizza box. Dale Thus spake Tarko Tikan (tarko@lanparty.ee) on Fri, Oct 30, 2020 at 04:25:58PM +0200:
hey,
I need to push 100G over 100 km of dark fiber. Since there are no 100G pluggable optics with this reach (~25 dB), I have been offered coherent transport systems to solve my problem. This is all good and well, except total system costs start from high five figures.
100G-ZR4 QSFP28 is on the market and works. Just watch out for power limitations, your typical DC switch might not support it but proper stuff has no problems providing 6.5W of power.
-- tarko