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Chapter
Post Amplifiers
The output signal from the TIA is in the range of a few millivolts and more gain is needed to reach at least an amplitude of 200 mV required by the decision circuit. This additional gain will be introduced by ...
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Chapter
Why Optoelectronic Circuits in Nanometer CMOS?
Highly integrated communication systems are required to fulfill the growing demand for higher data rates in telecommunication networks. The optical fiber links are the best candidates to deal with large volume...
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Chapter
Laser and Modulator Drivers
The main elements of an optical transmitter are the devices used for the electrical to optical conversion (laser, VCSEL, modulator ...) and the circuit which drives the laser diode (laser driver or modulator d...
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Chapter
Discrete Photodiodes
Low production costs are important for large volume production. For POF communications large-area PDs are needed which will increase the chip costs if integrated in the same expensive nanometer CMOS technology.
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Chapter
Basics of Photodiodes
The integrated photodiode is the first stage in the monolithically integrated optical receiver. The photodiode converts the optical power into an electrical current. The photodiode should convert photons into ...
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Chapter
Optoelectronic Circuits in Nanometer CMOS Technology
In this chapter three fully integrated optical receivers down to 40 nm CMOS are described. In addition two optical receivers with off-chip photodiode follow. Finally optical sensors are introduced to complete ...
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Chapter
Integrated Photodiodes in Nanometer CMOS Technologies
This chapter contains aspects like technology selection and scaling of photodiode performance. Classical PN junction, double-junction photodiodes, finger photodiodes, PIN photodiodes, a spatially modulated lig...
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Chapter
Equalizers
Most of the nanometer CMOS photodetectors presented in Chap. 5 have a small bandwidth due to a slow diffusion current. The photodiodes’ bandwidth can be extended t...
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Chapter
Optical Communications Fundamentals
The necessary fundamentals for the analysis and design of optical communication links will be introduced in this chapter. The transmitter, receiver (transceiver) and optical fiber channel for optical communica...
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Chapter
Transimpedance Amplifiers
Current-to-voltage converters are necessary in optical in order to convert and amplify the weak delivered by the into a strong output voltage signal which is proportional to the input current.