ISU
Home
ISURF/OIPTT
Home
ISURFtech
Home
Advanced
Search
RSS
Feeds
Interferometric Methods of Magneto-Optic Optical Switching
Category(s):
For Information, Contact:
Jay Bjerke
Commercialization Manager, Engineering
515-294-4740
licensing@iastate.edu
Web Published:
5/4/2015
ISURF #
3977
Summary:
Iowa State University researchers have developed an optical switch capable of submicrosecond switching that may help meet the growing demand for high speed, high bandwidth applications.

Description:
Demand for optical data and communication networks continues to grow, and as a consequence, so does the need for high speed, high bandwidth switching technologies.  The development of all optical switching technologies has seen increased focus to help meet performance demands and the need for ultrafast signal processing. Magneto-optical switches have been investigated for optical switching applications because of their low insertion loss and ability to be integrated into optical systems.  However, magneto-optical switches have previously had slow switching times, on the order of hundreds of milliseconds. To overcome this drawback, ISU researchers have developed an interferometric fiber switch which utilizes a magneto-optic Faraday rotator (MOFR). This system uses generation of a magnetic field via a magnetic pulse circuit to achieve high speed switching, on the order of hundreds of nanoseconds. As a consequence, this optical switch may have utility for applications such as fiber-optic communications.

Group:
Advantage:
• High speed (capable of switching speeds on the order of 100 ns)
• High stability (Sagnac configuration allows short path length and matched interferometric paths)
• Versatile (switch may either have a latching or nonlatching configuration)
Application:
Fiber optics communications; high capacity data networks

References:
Patent Information:
*To see the full version of the patent(s), follow the link below, then click on "Images" button.
Country Serial No. Patent No. Issued Date
United States 13/440,355 9,110,317* 8/18/2015


Direct Link: