Photonics is the technology of generating and harnessing light  and other forms of radiant energy whose quantum unit is a photon. The science include light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. In brief photonics is the technology of mastering light.

The era of modern photonics began with the invention of laser in 1960, and its impact in telecommunications was enabled by the perfection in the late 1970s of low signal loss optical fibers for long haul under sea and terrestrial communications. Photonics technology can also be used in other industrial and military applications. Theoretically, almost any physical or environmental parameter can be measured using light, including temperature , strain, electric current, vibration, chemical and biological pollutants, or sound. A growing area is biophotonics, where photonics technology is used to develop new procedures and and techniques in biotechnology, microbiology, medicine, surgery and other life sciences. Photonics has a strong reputation in solving research problems through advanced spectroscopy, lasers, microscopy, and fiber optic imaging. The use of light in meeting the demands of society's evolving needs is just beginning.  The use of light will most certainly and dramatically change the quality of almost every aspects of our lives !!

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