Hi Estrecht,
I confirm your title, for me your sword is from Bulgaria.
Have you seen this post?
http://www.vikingsword.com/vb/showthread.php?t=17683
I would say that it's not an Ottoman sword, but a "sabre a l'oriental".
Bulgarians and Polish have been so much in contact with the Ottomans & Tatars that they took their habits and weapons...
Best,
Kubur