Integrated lithium niobate Mach-Zehnder interferometers for advanced modulation formats

Tetsuya Kawanishi; Takahide Sakamoto; Akito Chiba

doi:10.1587/transele.E92.C.915

Integrated lithium niobate Mach-Zehnder interferometers for advanced modulation formats

Tetsuya Kawanishi, Takahide Sakamoto, Akito Chiba

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We present recent progress of high-speed Mach-Zehnder modulator technologies for advanced modulation formats. 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. Frequency response of each Mach-Zehnder interferometer is also very important to achieve high-speed signals. We can enhance the bandwidth of the response, with thin substrate. 87 Gbaud modulation was demonstrated with a dual-parallel Mach- Zehnder modulator.

Original language	English
Pages (from-to)	915-921
Number of pages	7
Journal	IEICE Transactions on Electronics
Volume	E92-C
Issue number	7
DOIs	https://doi.org/10.1587/transele.E92.C.915
Publication status	Published - 2009 Jan 1
Externally published	Yes

Keywords

Lithium niobate
Mach-Zehnder interferometer
Optical modulator
Quadrature amplitude modulation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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AU - Chiba, Akito

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AB - We present recent progress of high-speed Mach-Zehnder modulator technologies for advanced modulation formats. 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. Frequency response of each Mach-Zehnder interferometer is also very important to achieve high-speed signals. We can enhance the bandwidth of the response, with thin substrate. 87 Gbaud modulation was demonstrated with a dual-parallel Mach- Zehnder modulator.

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KW - Mach-Zehnder interferometer

KW - Optical modulator

KW - Quadrature amplitude modulation

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Integrated lithium niobate Mach-Zehnder interferometers for advanced modulation formats

Abstract

Keywords

ASJC Scopus subject areas

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