Hello Rend Alrays,
I completely agree with both Burhan num mina llah and Dhiman Kakati. As they have rightly mentioned that You first need to make sure that the output signal is electrical so the required modulation of your signal is done because premodulation is prerequisite for successful data transmission.
Also as burhan num mina llah has said that you can use to run your matlab code and use it to send information and interface with optical fiber. I Hope this will be helpful to you. Thanking You.
Regards