Resources Contact Us Home
Optical modulator and optical modulation method

Image Number 4 for United States Patent #6462857.

An optical modulator includes a magnetic ferrite single crystal, an optical source, a photoreceptor system and an analyzer. The magnetic ferrite single crystal has a transducer mounted and arranged to receive a microwave. The microwave is modulated by a signal having a frequency lower than the microwave. Light emitted from the optical source is introduced to the magnetic garnet single crystal and modulated by the microwave applied to the transducer. The photoreceptor system receives the modulated light that is emitted from the magnetic ferrite single crystal. The analyzer is provided between the magnetic ferrite single crystal and the photoreceptor system, and the analyzer is arranged such that a rotation angle of the analyzer about an optical axis thereof is shifted by an angle in the range of about 40 degrees to about 50 degrees from an extinct position at which an amount of direct-current light transmitted through analyzer is minimized.

  Recently Added Patents
Bicycle shifting method
Method and apparatus for displaying system status with a wide range of viewing angle
System and methods for random parameter filtering
Test method for inspection device, particularly for label seating inspection device
Segmenting video based on timestamps in comments
Analysis, secure access to, and transmission of array images
  Randomly Featured Patents
System and method for modeling a tracking curve of an in vivo device
Method and system for information processing using meta-archives
Pedestrian operated machine with foldaway seat
Delousing comb
Automatic axle disconnect
Radiant electric heater
High contrast lithographic masks
Apparatus and method of injecting treatment fluids into a formation surrounding an underground borehole
Part indexing and positioning apparatus
Side element of a shoe upper