Resources Contact Us Home
Optical modulation method operable in an optical transmission path and an optical modulator using the optical modulation method

Image Number 12 for United States Patent #5259045.

An optical modulation method operable in an optical transmission path using an optical fiber, wherein an optical fiber bending region is formed by bending a portion of the optical fiber into a U shape having a predetermined bending width. A bending width set point is set in correspondence with a predetermined inclined portion of a characteristic curve representing a dependency ratio of insertion loss of light propagating in said optical fiber bending region relative to the bending width thereof, said predetermined inclined portion of said characteristic curve being located between a predetermined maximum and minimum portion thereof. Intensity modulation of light propagating in the optical fiber is performed using a signal to be transmitted by adjusting the bending width of the optical fiber bending region in correspondence with the signal to be transmitted with reference to the bending width set point as a center.

  Recently Added Patents
Error scanning in flash memory
Passive translational velocity measurement from optical information
Universal handle extension for unloading butterfly valve for tank trailer or other vehicle
Television with a stand
Detection of procedural deficiency across multiple business applications
Image forming apparatus with static elimination
Printed circuit board including electromagnetic bandgap structure
  Randomly Featured Patents
Organic EL display device with arrangement to suppress degradation of the light emitting region
Substituted coumarins and quinolines and analogs as activators of caspases and inducers of apoptosis and the use thereof
Educational device for motivating, and for developing scribing and reading skills in, the handicapped
Sensors for biomolecular detection and cell classification
Toner transport apparatus using flexible augers
Modulation scheme for PWM-type amplifiers or motors
Aluminum alloy sheet and method for manufacturing the same
Stripping tool
Drive system for turbochargers with rotary electric machines
Fluid displacement pump with backpressure stop