Experiment with quantum dot

[Quant]

TL;DR Summary

Is there interference from opposite directions of possible
propagation of a photon?

A quantum dot is placed in a line between two optic fibers
The dot can emit a photon in every direction which is unknown.

If the fibers are combined at a BS would there be interference if the photon
is not observed outside the fibers?

Do you know if somebody made such experiment?
Thanks anyone for considerations.

 

[hutchphd]

What is "combined at a BS " ??

 

[berkeman]

Probably beamsplitter.

 

[Quant]

BS = Beam splitter. Combined is the output of the fibers. What comes out of
them I don't know. Maybe probabilities.