Definitions for "Photodetector"
Converts light energy to electrical energy. The silicone photodiode is most commonly used for relatively fast speeds and good sensitivity in the 0.75um to 0.95um wavelength region. Avalanche photodiodes (APD) combine the detection of optical signals with internal amplification of photocurrent. Internal gain is realized through avalanche multiplication of carriers in the junction region. The advantage in using an APD is its higher signal-to-noise ratio, especially at high bit rates.
In a lightwave system, a device that turns pulses of light into bursts of electricity.
(Receiver) Transforms light into electricity. The silicon photo diode is most commonly used for relatively fast speeds & good sensitivity in the 0.75 um to 0.95 um wavelength region. Avalance photodiodes (ADP) combine the detection of optical signals with internal amplification of photo-current. Internal gain is realized through avalance multiplication of carriers in the junction region. The advantage in using an ADP is its higher signal-to-noise ratio, especially at high bit rates. Physical Address: The MAC-layer address of a node, as opposed to the software-defined network-layer address.