Undersampling a photonic analog-to-digital converter containing an optical hybrid combiner

A self-coherent optically-sampled analog-to-digital converter using a 90° optical hybrid coupler is experimentally demonstrated. It leverages practical, commercially available components and is used for high-resolution undersampling at 50Msps of up to 20GHz carrier frequencies. The measured ADC reso...

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Bibliographic Details
Published in:Optics communications 2013-02, Vol.288, p.31-37
Main Authors: Reilly, Daniel R., Wang, Shawn X., Kanter, Gregory S.
Format: Article
Language:English
Subjects:
Analog-digital conversion
Microwave photonics
Optical data processing
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Summary:A self-coherent optically-sampled analog-to-digital converter using a 90° optical hybrid coupler is experimentally demonstrated. It leverages practical, commercially available components and is used for high-resolution undersampling at 50Msps of up to 20GHz carrier frequencies. The measured ADC resolution is 9 effective bits for a 10GHz carrier frequency and shows little carrier frequency dependence from 6 to 20GHz.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2012.09.062