Patent №
US 4,867,515
Granted
1989-09-19
Filed 1988
Owner
U.S. PHILIPS CORPORATION, A CORP. OF DE
+1 more
Lab
—
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
07228473
All optical modulators are disclosed which include a channel waveguide made of an optically nonlinear material and transmitting an infrared beam. A control light whose wavelength is shorter than the bandgap energy of the channel of the guide is directed to the guide to bring it to cutoff. Near 100% modulation was obtained for a silicon waveguide with less than 150 pJ with a subnanosecond initiation and recovery time in a three port, fiber optics, geometry suitable for use as a logic gate. The operation is largely wavelength independent and stable.
AI classification
Ownership
U.S. PHILIPS CORPORATION, A CORP. OF DE
assignment · 51270881
CANADIAN PATENTS AND DEVELOPMENT LIMITED/SOCIETE CANADIENNE DES BREVETS ET D'EXPLOITATION LIMITEE
assignment · 51340997
Assignors
NORMANDIN, RICHARD J.F.
On an employer assignment, the assignors are typically the inventors.