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
Transparent conductive structure
Memristive junction with intrinsic rectifier
Cardiopulmonary resuscitation monitoring apparatus
Flip flop shoe
Scalable packet processing systems and methods
Server-side connection resource pooling
Systems and methods for controlling phasing of advancing substrates in absorbent article converting lines
  Randomly Featured Patents
Picture display device
Golf club head
Method for fabricating thin film transistor array substrate for liquid crystal display
Single-use camera with reduced winding noise
Heat exchanger and method of assembly thereof
Assembly of parts forming an angle between them and process for obtaining said assembly
Paint container
Hemihydrate type process for phosphoric acid manufacture using additive to improve filterability
Tamper-evident closure cap
Ball bearing piston