optical circulator as a bidirectional one fiber solution
baldur.norddahl at gmail.com
Tue Aug 7 19:46:03 UTC 2018
There is a lack of bidirectional one fiber (BIDI) options for 40G and
100G optics. Usually BIDI is implemented using two CWDM wavelengths, one
for tx and one for rx. However there is also a lack of CWDM and DWDM
options for 40G and 100G.
Would it be possible to use an optical circulator like this one
(customized to 1310 nm)?
Combined with a traditional two fiber 1310 nm 10 km 40G QSFP module like
The link distance would be 5 km.
The optical circulator separates tx and rx by the direction the light
travels in. It would work even though both directions use the same
wavelength. There will likely be some reflection but hopefully
attenuated enough that it is regarded as background noise.
Has anyone done this? Any reason it would not work?
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