NDLI: QPSK Vector Signal Generation Based on Photonic Heterodyne Beating and Optical Carrier Suppression

Content Provider	IEEE Xplore Digital Library
Author	Xinying Li Jiangnan Xiao Yuming Xu Jianjun Yu
Copyright Year	2009
Abstract	We propose a novel scheme for quadrature phase-shift keying (QPSK) modulated vector signal generation based on photonic heterodyne beating, phase precoding, and optical carrier suppression (OCS). Different from our previous OCS-based vector signal generation schemes, in our proposed scheme, the precoded vector signal at the radio-frequency (RF) band, which is used for the drive of the intensity modulator operating at its OCS point, is generated by photonic heterodyning beating rather than a single digital-to-analog converter (DAC). Photonic heterodyne beating accomplishes the upconversion of the precoded vector signal from the baseband to the RF band, and thus, the DAC in our proposed scheme is used to generate the precoded vector signal at the baseband rather than that at the RF band, which significantly reduces the DAC bandwidth requirement. We experimentally demonstrate 17.6-GHz QPSK modulated vector signal generation based on our proposed scheme. The generated 17.6-GHz vector signal can carry up to 3-GBd QPSK data with a bit error ratio (BER) less than the hard-decision forward-error-correction (HD-FEC) threshold of $3.8\times 10^{-3}$.
Starting Page	1
Ending Page	6
Page Count	6
File Size	636652
File Format	PDF
ISSN	19430655
Volume Number	7
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photonics Phase shift keying Optical modulation Bandwidth Frequency modulation Optical mixing quadrature phase shift keying (QPSK) Photonic vector signal generation photonic heterodyne beating phase precoding optical carrier suppression (OCS) quadrature phase-shift keying (QPSK)
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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