- A semiconductor device which allows electrical signals to be transferred between circuits, devices, or systems, while maintaining electrical isolation between them. An optoisolator may consist, for instance, of an LED or IRED for signal transmission, and a photodetector, such as a photodiode, for signal reception. The signal transmitter converts the electrical signal into an optical signal, while the receiver restores the original electrical signal. Used, for instance, in communications, and in control systems. Also called optical coupler, optical isolator, optocoupler, optically-coupled isolator, optoelectronic isolator, optical link, photocoupler, or photoisolator.
- synonymoptical coupler
- synonymoptical isolator
- synonymoptical link
- synonymoptically-coupled isolator
- synonymoptoelectronic isolator