A Fifth-Order Polynomial Predistortion Circuit for Mach-Zehnder Modulator Linearization in 65nm CMOS Conference Paper

abstract

• 2017 IEEE. Future RF photonic systems offer the promise of wideband front-end operation, but are limited by linearity in the electrical-to-optical conversion process. This paper presents a fifth-order polynomial predistortion circuit for optical Mach-Zehnder modulator linearization. Inclusion of independently tunable polynomial coefficients provides the flexibility to suppress both third-order (IM3) and fifth-order (IM5) intermodulation products. Fabricated in 65nm CMOS, the predistortion circuit achieves a measured IM3 suppression of 19.5dB and 17.1dB with modulation indexes of 49.6% and 60%, respectively.

name of conference

• 2017 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)

authors

• Entesari, Kamran
• Palermo, Samuel

published proceedings

• PROCEEDINGS OF THE 2017 TEXAS SYMPOSIUM ON WIRELESS AND MICROWAVE CIRCUITS AND SYSTEMS (WMCS)

author list (cited authors)

• Okyere, J., Yu, K., Entesari, K., & Palermo, S.

citation count

• 2

complete list of authors

• Okyere, Jeffrey||Yu, Kunzhi||Entesari, Kamran||Palermo, Samuel

publication date

• March 2017

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

keywords

• External Modulation
• Intermodulation Distortion
• Mach-zehnder Modulator
• Predistortion
• Rf Photonics

Digital Object Identifier (DOI)

• 10.1109/wmcas.2017.8070697

International Standard Book Number (ISBN) 13

• 9781538617946

URI

• https://hdl.handle.net/1969.1/161299

start page

• 1

end page

• 4