Optoelectronics is the field of technology that associates the physics of light with electricity. It incorporates the design, study and manufacture of hardware contrivances that convert electrical signals into photon signals and photons signals to electrical signals. Any contrivance that operates as an electrical-to-optical or optical-to-electrical is considered an optoelectronic contrivance. Optoelectronics is built up on the quantum mechanical effects of light on electronic materials, sometimes in the presence of electric fields, especially semiconductors. Optoelectronic technologies comprise of laser systems, remote sensing systems, fibre optic communications, optical information systems, and electric ocular perceivers medical diagnostic systems.

1.      Phototransistors

2.      Photomultipliers

3.      Optoisolators

4.      Integrated Optical Circuit

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