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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 6 — Mar. 14, 2011
  • pp: 5596–5601

Reconfigurable multilevel transmitter using monolithically integrated quad Mach-Zehnder IQ modulator for optical 16-QAM and 8-PSK generation

Guo-Wei Lu, Takahide Sakamoto, Akito Chiba, Tetsuya Kawanishi, Tetsuya Miyazaki, Kaoru Higuma, Masaaki Sudo, and Junichiro Ichikawa  »View Author Affiliations


Optics Express, Vol. 19, Issue 6, pp. 5596-5601 (2011)
http://dx.doi.org/10.1364/OE.19.005596


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Abstract

We propose and demonstrate a reconfigurable multilevel transmitter using a monolithically-integrated quad Mach-Zehnder in-phase/quadrature (QMZ-IQ) modulator with binary driving electronics. Different from previous parallel-integrated quadrature amplitude modulation (QAM) transmitter solutions, only one electrode is required to adjust the relative phase offset among embedded sub-Mach-Zehnder modulators in the proposed IQ superstructure. By feeding different RF driving electronics and operating the integrated modulator as different bias conditions, different advanced multilevel modulation formats, such as QAM and 8-ary phase-shift keying (8-PSK), could be synthesized. In this paper, a 40-Gb/s 16-QAM and a 30-Gb/s 8-PSK are generated using the proposed multilevel transmitter, respectively. Offline digital processing is employed for bit-error rates estimation and constellation reconstruction.

© 2011 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.5060) Fiber optics and optical communications : Phase modulation
(130.0130) Integrated optics : Integrated optics
(130.4110) Integrated optics : Modulators

ToC Category:
Integrated Optics

History
Original Manuscript: January 24, 2011
Revised Manuscript: March 4, 2011
Manuscript Accepted: March 5, 2011
Published: March 10, 2011

Citation
Guo-Wei Lu, Takahide Sakamoto, Akito Chiba, Tetsuya Kawanishi, Tetsuya Miyazaki, Kaoru Higuma, Masaaki Sudo, and Junichiro Ichikawa, "Reconfigurable multilevel transmitter using monolithically integrated quad Mach-Zehnder IQ modulator for optical 16-QAM and 8-PSK generation," Opt. Express 19, 5596-5601 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-6-5596


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References

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