Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Motor control system, motor control device, and brushless motor
Frothable aqueous composition for use in a carpet backing composition
Chair
Liposomal nanoparticles and other formulations of fenretinide for use in therapy and drug delivery
Tetrazolyl oxime derivative, salt thereof, and plant disease control agent
Lubricant supplying device, process cartridge, and image forming apparatus
All-angle light emitting element having high heat dissipating efficiency
  Randomly Featured Patents
Method and apparatus for power coating of three-piece cans
Modular magnetic therapy device
Diffusion-barrier materials for thick-film piezoresistors and sensors formed therewith
Temporal and spatial analysis of a video macroblock
Diesel engine system for use with emission control device
Apparatus for effecting a miter cut with a portable circular saw
Personal care article with vibrating head part
Short circuits and power limit protection circuits
Seat belt mechanism for a child seat
Two-leg vernier calipers and its manufacturing method