Paper
26 January 2009 Advances and challenges in vector modulation technologies
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Abstract
This paper describes recent progress of high-speed vector optical modulation technologies based on Mach- Zehnder interferometer devices. Multi-level quadrature amplitude modulation signal can be synthesized by using parallel Mach-Zehnder modulators. We can generate complicated multi-level optical signals from binary data streams, where binary modulated signals are vectorially summed in optical circuits. Modulation speed can be higher than 80 Gbaud by using a dual parallel Mach-Zehnder modulator with thin lithium niobate substrate.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tetsuya Kawanishi, Takahide Sakamoto, and Akito Chiba "Advances and challenges in vector modulation technologies", Proc. SPIE 7234, Broadband Access Communication Technologies III, 72340D (26 January 2009); https://doi.org/10.1117/12.816361
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Cited by 1 scholarly publication.
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KEYWORDS
Modulation

Modulators

Binary data

Integrated optics

Interferometers

Current controlled current source

Semiconductor lasers

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