Linearization of an optically sampled analog-to-digital converter

• Main Authors: Wong, Jia Haur, Aditya, Sheel, Lam, Huy Quoc, Lim, Peng Huei, Lee, Kenneth Eng Kian, Shum, Perry Ping
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/97603; http://hdl.handle.net/10220/12070
• Institution: Nanyang Technological University

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.