Abstract
This chapter discusses photodetectors which are indispensible for optical-to-electrical conversion in optical receivers. Semiconductor-based pn, pin, and APD photodiodes are most often used in optical communication receivers because of their compact size and fast speed. Important parameters of a photodiode include responsivity and speed of response in the wavelength region it operates. In the process of photodetection, a photodiode also creates noise through several different sources such as thermal noise, shot noise, dark current noise, and photon-multiplication noise if an APD is used. In the last section of this chapter, the basic structures and applications of photovoltaic and charge-coupled devices are also discussed. Although not often used for optical communications, these pn junction-based devices are very popular in making solar cells, digital cameras, and optical sensors.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
