What is Photonics

What is Photonics

What is photonics?

Simply put, photonics is the branch of physics that studies photons (particles of light). This discipline encompasses the generation, transmission and use of light.

Light-based technologies are known for their speed, precision and power. Unlike electrons, photons have versatile properties (such as colour, polarization and directionality) which are useful in developing innovative products. From lasers to light-emitting diodes (LEDs), innovations in photonics are gradually replacing older technologies.


Photonics serves a range of sectors, including telecommunications, transportation, arts and multimedia, and life sciences, among others. Here are just a few examples of the varied activities of photonics companies in Quebec.