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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 10 — May. 15, 2006
  • pp: 4469–4478

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, and Junichiro Ichikawa  »View Author Affiliations


Optics Express, Vol. 14, Issue 10, pp. 4469-4478 (2006)
http://dx.doi.org/10.1364/OE.14.004469


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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.

© 2006 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(230.4110) Optical devices : Modulators

ToC Category:
Optical Devices

History
Original Manuscript: February 27, 2006
Revised Manuscript: April 20, 2006
Manuscript Accepted: April 30, 2006
Published: May 15, 2006

Citation
Tetsuya Kawanishi, Takahide Sakamoto, Tetsuya Miyazaki, Masayuki Izutsu, Takahisa Fujita, Shingo Mori, Kaoru Higuma, and Junichiro Ichikawa, "High-speed optical DQPSK and FSK modulation using integrated Mach-Zehnder interferometers," Opt. Express 14, 4469-4478 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-10-4469


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References

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