Linearization of an optically sampled analog-to-digital converter

Author

Jia Haur Wong ; Aditya, Shivam ; Huy Quoc Lam ; Peng Huei Lim ; Lee, Kenneth Eng Kian ; Ping, Perry Shum

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2012

fDate

11-14 Sept. 2012

Firstpage

204

Lastpage

207

Abstract

In this paper, we show experimentally for the first time a 2 GSamples/s optically sampled analog-to-digital converter based on dual-output modulation and balanced photodetection scheme. Linearization in the form of arcsine operation is also described to illustrate the considerations of the proposed scheme. Finally, arcsine operation is digitally implemented on the output of the electronic ADC and is shown to enable significant odd-order harmonic suppression at high modulation depths approaching unity.

Keywords

analogue-digital conversion; harmonics suppression; linearisation techniques; microwave photonics; optical links; optical modulation; 2 GSamples optically sampled analog-to-digital converter; arcsine operation; balanced photodetection scheme; dual-output modulation; electronic ADC; high modulation depths; odd-order harmonic suppression; Analog-digital conversion; Optical distortion; Optical fibers; Optical modulation; Photonics; Analog-to-digital conversion; fiber optics; microwave photonics; optical analog link; optical modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics (MWP), 2012 International Topical Meeting on

Conference_Location

Noordwijk

Print_ISBN

978-1-4673-2863-0

Type

conf

DOI

10.1109/MWP.2012.6474092

Filename

6474092