National University of Ireland, Galway
The Optical Society (OSA) is the leading professional association in optics and photonics, home to accomplished science, engineering, and business leaders from all over the world. OSA Website

The OSA consists of a vast network of professionals working and researching in the field of optics, extending across the globe. Founded in Rochester NY in 1916, the OSA celebrates its 100th anniversary this year.

The mission of the OSA is

...to promote the generation, dissemination, application, and archiving of knowledge in optics and photonics. The purposes of the Society are scientific, technical, and educational. OSA Website

This is achieved by the OSA through its many diverse meetings and publications, which are available to members of the society. Membership of the Optical Society has many benefits, including the support to set up a student chapter of the OSA.

Further information can be found on the Optical Society of America website.