Resources Contact Us Home
Polarization mode dispersion measurement using phase-sensitive sideband detection

Image Number 3 for United States Patent #6362874.

A polarization mode dispersion (PMD) measuring arrangement utilizes a tapped-off portion of a signal that has experienced dispersion (such as, for example, propagating through a dispersive optical fiber). The measuring arrangement utilizes a phase-sensitive single sideband detection circuit in conjunction with a polarization beam splitter to generate magnitude and phase information for the lower and upper sidebands of each polarization of the received signal. The magnitude and phase information collected at a single frequency can be used to determine the polarization mode dispersion, eliminating the need to sweep the center frequency of the received optical signal to generate the PMD measurement.

  Recently Added Patents
2-aryl-4-quinazolinones and their pharmaceutical compositions
Scanned image projection system employing intermediate image plane
Socket type MEMS device with stand-off portion
Identification of protected content in e-mail messages
Portion of a display panel with an unhappy facial expression icon
Transducer displacement protection
Produce container and lid assembly
  Randomly Featured Patents
Multi-channel optical communication system that controls optical reflection for each channel and optical transmitting and receiving apparatus therefor
Linear solid state image sensor
Vector wind sensor and integrated antenna
Method of forming pillars in a fully integrated thermal inkjet printhead
Coin holder pouch
Methods, systems and computer program products for finding network segment paths
VDD/5 or VDD/6 charge-pump
Bond pad array for complex IC
Cell analysis using laser with external cavity