Software Defined Optically Generated Pre-coded QPSK Modulated Microwave Signal

A phase precoded QPSK modulated frequency tripled microwave signal at 3 GHz is generated optically using an external Mach Zehnder intensity modulator. The modulator can be biased differently to produce double and quadrupled microwave output in a software defined way. Optically generated microwave si...

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Bibliographic Details
Main Authors: Chaudhuri, Rangana Banerjee, Mukhopadhyay, Arnav, Bogoni, Antonella, Barman, Abhirup Das
Format: Conference Proceeding
Language:English
Subjects:
Frequency modulation
Frequency tripling
Mach Zehnder intensity modulator
Microwave photonics
Optical fibers
Optical generation
Optical harmonic generation
Optical modulation
Precoding
QPSK
Ultrafast optics
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Description
Summary:A phase precoded QPSK modulated frequency tripled microwave signal at 3 GHz is generated optically using an external Mach Zehnder intensity modulator. The modulator can be biased differently to produce double and quadrupled microwave output in a software defined way. Optically generated microwave signal is transmitted wirelessly about 3 m and the received signal is decoded successfully in a software defined receiver. The BER measurement of the received 3 GHz signal demonstrates 2.5 dB power penalty for 30 Mbps data rate at 10 -6 .
ISSN:2377-9152
DOI:10.1109/IMaRC.2018.8877238