The new Line 2 of Salvador Metro integrates the metro stations of the Rótula do Abacaxi and the beach city of Lauro de Freitas in the metropolitan area, passing through the Salvador International Airport, with the Airport metro station.Overview The Salvador Metro (: Metrô de Salvador, commonly called Metrô or Sistema Metropolitano Salvador-Lauro de Freitas). The project is a Build, Operate, and Transfer (BOT) scheme for the operation of the system in the municipality of Salvador da Bahia, and includes the supply and installation of rolling stoc. The current route of Line 1 begins at the underground Lapa station, and runs for 1.4 kilometres (0.87 mi) in Metro tunnels, before emerging to the surface. Brotas station (which serves the stadium).
[pdf] Although most people want to make measurement in units of dBm or Watts, an optical power meter is only capable of measuring either the current or the voltage generated by a photodetector. When interfacing with a photodiode, the quantity that must be measured is current. In fiber optics, lasers, sensors, and optical communication links, this measurement is central to confirming that signals are strong enough to perform reliably without overloading. Quantum efficiency is dependent on many factors, but in general if the energy of the photon, E = h v, is greater than the energy gap of the device, these photons will be absorbed very near the surface where the recombination rate is high and will contribute to the photocurrent.
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