Title :
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
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;
Conference_Titel :
Microwave Photonics (MWP), 2012 International Topical Meeting on
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4673-2863-0
DOI :
10.1109/MWP.2012.6474092
