The main purpose of this project is the design, in a 28nm CMOS technology, of a Mach Zehnder driver for coherent optical applications.The features for these kinds of circuits are a wide bandwidth in order to increase the bit rate, a very high output voltage swing to drive the MZM and a low harmonic distortion to cope with complex modulations. Because of their efficiency, reliability, Better performances and the lower cost makes the CMOS technology suitable for such applications compared to BJT and BiCMOS technologies. The project is about the design of this solution, in order to lower the power consumptions of each building blocks (reducing the supply voltage and the current). The achieved performances are the following: a) 1.5V peak-to-peak differential output voltage swing, b) 53GHz bandwidth, c) 10dB of discrete gain variability, d) total harmonic percentage 1)@20dB Gain : 811.6m 2)@10dB Gain : 752.5m, e) power consumption 1)@20dB Gain : 205.33mW 2)@10dB Gain : 182.82mW.
The main purpose of this project is the design, in a 28nm CMOS technology, of a Mach Zehnder driver for coherent optical applications.The features for these kinds of circuits are a wide bandwidth in order to increase the bit rate, a very high output voltage swing to drive the MZM and a low harmonic distortion to cope with complex modulations. Because of their efficiency, reliability, Better performances and the lower cost makes the CMOS technology suitable for such applications compared to BJT and BiCMOS technologies. The project is about the design of this solution, in order to lower the power consumptions of each building blocks (reducing the supply voltage and the current). The achieved performances are the following: a) 1.5V peak-to-peak differential output voltage swing, b) 53GHz bandwidth, c) 10dB of discrete gain variability, d) total harmonic percentage 1)@20dB Gain : 811.6m 2)@10dB Gain : 752.5m, e) power consumption 1)@20dB Gain : 205.33mW 2)@10dB Gain : 182.82mW.
Study and design of Mach Zehnder drivers for 50GHz and beyond in CMOS technology for coherent optical applications.
ACHARYA, ARKESH JAGADISH
2021/2022
Abstract
The main purpose of this project is the design, in a 28nm CMOS technology, of a Mach Zehnder driver for coherent optical applications.The features for these kinds of circuits are a wide bandwidth in order to increase the bit rate, a very high output voltage swing to drive the MZM and a low harmonic distortion to cope with complex modulations. Because of their efficiency, reliability, Better performances and the lower cost makes the CMOS technology suitable for such applications compared to BJT and BiCMOS technologies. The project is about the design of this solution, in order to lower the power consumptions of each building blocks (reducing the supply voltage and the current). The achieved performances are the following: a) 1.5V peak-to-peak differential output voltage swing, b) 53GHz bandwidth, c) 10dB of discrete gain variability, d) total harmonic percentage 1)@20dB Gain : 811.6m 2)@10dB Gain : 752.5m, e) power consumption 1)@20dB Gain : 205.33mW 2)@10dB Gain : 182.82mW.È consentito all'utente scaricare e condividere i documenti disponibili a testo pieno in UNITESI UNIPV nel rispetto della licenza Creative Commons del tipo CC BY NC ND.
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https://hdl.handle.net/20.500.14239/14839