Well I can't prove it to you but this has come up in the past and I'm pretty sure that there is a fiber optic cable that you buy that picks up from the bottom of the head phone port. Search it up If I remember correctly the subject was something like (verified head phone port carries Toslink something like that) no quotes Of course since I have not needed or attempted I am only repeating what I think I saw hoping this may help you?
maybe this will help you understand that this is possible?
http://www.amazon.com/s/?ie=UTF8&keywords=toslink+to+headphone+jack&tag=googhydr-20&index=aps&hvadid...Maybe some are and some aren't I really don't know, I only remember this coming up once
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro