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  • Dense Wavelength Division Multiplexer (DWDM)
    Dense wavelength division multiplexers (DWDM) use an optical (analog) multiplexing technique to increase the carrying capacity of a fiber network beyond what can be achieved with time division multiplexing (TDM) techniques. Different wavelengths of light are used to transmit multiple streams
  • Semiconductor Optical Amplifier in Coarse Wavelength Division Multiplexed Systems
    the wavelengths. The wavelengths span from 1260 nm to 1610 nm as shown in Figure 1. Since the wavelengths are 20 nm apart, it allows for the use of lower cost components like cooler-less DFB lasers, dielectric filter based multiplexers/demultiplexers etc. This not only reduces the cost of the optical components
  • EETimes.com | Electronics Industry News for EEs & Engineering Managers
    Corvis demos optical equipment to quell critics Corvis Corp. made back-to-back demonstrations of its optical routing switch and optical add-drop multiplexer equipment at the recent National Fiber Optics Engineers Conference and NetWorld+Interop Fall, hoping to quell critics who say the company's
  • Measuring the long haul
    . But where stainless tape is punched with a coded pattern and read by an optical sensor, the new method makes use of an extruded aluminum profile containing buried magnets. A special Hall-effect sensor detects the magnets and determines absolute position. These position multiplexer encoders, or Pomux

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