High-speed optical DQPSK and FSK modulation using integrated Mach-Zehnder interferometers

Tetsuya Kawanishi, Takahide Sakamoto, Tetsuya Miyazaki, Masayuki Izutsu, Takahisa Fujita, Shingo Mori, Kaoru Higuma, Junichiro Ichikawa

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

We investigated an integrated optical modulator consisting of two Mach-Zehnder interferometers. The modulator can generate optical signals in various types of modulation formats, which have advantages for long-haul transmission, optical labeling, etc. By using a fabricated versatile optical modulator having traveling-wave electrodes designed for high-speed signals, we demonstrated generation of optical 40 Gb/s frequency-shift-keying signals, which can be demodulated by an optical filter. 80 Gb/s optical differential quadrature-shift-keying modulation was also demonstrated, where 40 Gb/s in-phase and quadrature data were, simultaneously, fed to the modulator.

Original languageEnglish
Pages (from-to)4469-4478
Number of pages10
JournalOptics Express
Volume14
Issue number10
DOIs
Publication statusPublished - 2006
Externally publishedYes

Fingerprint

Mach-Zehnder interferometers
modulators
high speed
modulation
quadratures
frequency shift keying
keying
optical filters
traveling waves
marking
format
optical communication
electrodes
shift

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Kawanishi, T., Sakamoto, T., Miyazaki, T., Izutsu, M., Fujita, T., Mori, S., ... Ichikawa, J. (2006). High-speed optical DQPSK and FSK modulation using integrated Mach-Zehnder interferometers. Optics Express, 14(10), 4469-4478. https://doi.org/10.1364/OE.14.004469

High-speed optical DQPSK and FSK modulation using integrated Mach-Zehnder interferometers. / Kawanishi, Tetsuya; Sakamoto, Takahide; Miyazaki, Tetsuya; Izutsu, Masayuki; Fujita, Takahisa; Mori, Shingo; Higuma, Kaoru; Ichikawa, Junichiro.

In: Optics Express, Vol. 14, No. 10, 2006, p. 4469-4478.

Research output: Contribution to journalArticle

Kawanishi, T, Sakamoto, T, Miyazaki, T, Izutsu, M, Fujita, T, Mori, S, Higuma, K & Ichikawa, J 2006, 'High-speed optical DQPSK and FSK modulation using integrated Mach-Zehnder interferometers', Optics Express, vol. 14, no. 10, pp. 4469-4478. https://doi.org/10.1364/OE.14.004469
Kawanishi, Tetsuya ; Sakamoto, Takahide ; Miyazaki, Tetsuya ; Izutsu, Masayuki ; Fujita, Takahisa ; Mori, Shingo ; Higuma, Kaoru ; Ichikawa, Junichiro. / High-speed optical DQPSK and FSK modulation using integrated Mach-Zehnder interferometers. In: Optics Express. 2006 ; Vol. 14, No. 10. pp. 4469-4478.
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