A device which converts electrical energy in the form of a current into optical energy is called as ___________

A device which converts electrical energy in the form of a current in

1.	A device which converts electrical energy in the form of a current into optical energy is called as ___________
A.	Optical source
B.	Optical coupler
C.	Optical isolator
D.	Circulator
Answer» B. Optical coupler

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