Scheduled Maintenance

OSA will be performing scheduled maintenance on Monday (21 October) from 17:00 to 19:00 US EDT. We apologize for any inconvenience this may cause. Thank you for your patience as we improve our services.

If you need assistance, OSA's Customer Service can be reached at +1 202.416.1907 (Worldwide) +1 800.766.4672 (US/Canada) or by emailing us.

Customer Service is available from 08:30 to 18:00 US EDT, Monday through Friday.

Registration Open

Registration Open

Each year, OSA hosts, manages, or otherwise supports dozens of meetings on optics and photonics around the world.  Below are OSA meetings currently open for registration. If you don’t see a meeting listed here, search OSA's complete Calendar of Events.

Attendee Resources