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
Method and apparatus for organizing segments of media assets and determining relevance of segments to a query
Method and device for synthesizing image
Image forming apparatus and control method therefor
Categorization of design rule errors
Semiconductor IC including pulse generation logic circuit
Method for fabricating solar cell
Hemostatic devices and methods of making same
  Randomly Featured Patents
Generating a log-log hash-based hierarchical data structure associated with a plurality of known arbitrary-length bit strings used for detecting whether an arbitrary-length bit string input ma
Installation for palleting combined with secure access
Signal generating apparatus and method, recording apparatus and method, reproducing apparatus and method, recording/reproducing apparatus and method, computer program, and recording medium
Data management system for automatically accessing, maintaining, propagating user data among plurality of communities, each of which contains plurality of members
Bottom seal cut-off
Method of making an insulator with a non-linear resistivity coating of glass bonded silicon carbide
Substrate for Rpn11 enzymatic activity
Method and apparatus for nibbling cutouts by rotation of tooling with cutting surfaces of different contours and tooling therefor
Electrical connector with metal coupling sleeve
Laser level rotor assembly addressing angular drift