3. Detection
3.1 Basic principle of direct detection
The optical power fluctuations carrying the information are converted into electrical current fluctuations in the photodetector, which may be a PIN diode or an avalanche diode.
Incident photons illuminating the photodetector junction create photoelectrons by a Poisson process. In the case of the PIN photodiode, the average value of photocurrent I is given by :
with...
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Detection
Optical amplification
Bibliography
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Article included in this offer
"Optics and photonics"
(
211 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
