Generation of Arbitrary Quadrature Signals Using One Dual-Drive Modulator
Resource
Journal of Lightwave Technology 23 (2): 764-770
Journal
Journal of Lightwave Technology
Pages
764-770
Date Issued
2005
Date
2005
Author(s)
Ho, Keang-Po
Cuei, Han-Wei
Abstract
Regardless of the number of constellation points, all quadrature-amplitude modulation (QAM) signals can be generated using a single dual-drive Mach-Zehnder modulator. When the general method is applied to quadrature-phase-shift-keying (QPSK) signals, three different QPSK transmitters are shown with drive signals having four, three, or two levels. The usage of only one dual-drive modulator greatly simplifies the design of QAM and QPSK transmitters.
SDGs
Type
journal article
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