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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 12 — Jun. 11, 2007
  • pp: 7660–7666

40-Gb/s QPSK and 20-Gb/s PSK with inserted pilot symbols using self-homodyne detection

Guo-Wei Lu, Moriya Nakamura, Yukiyoshi Kamio, and Tetsuya Miyazaki  »View Author Affiliations


Optics Express, Vol. 15, Issue 12, pp. 7660-7666 (2007)
http://dx.doi.org/10.1364/OE.15.007660


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Abstract

We proposed and experimentally demonstrated 40-Gb/s quadrature phase-shifted keying (QPSK) and 20-Gb/s binary phase-shifted keying (PSK) transmission systems with inserted pilot symbols, using a return-to-zero radio frequency (RZ-RF) driving signal in the transmitter and self-homodyne direct detection in the receiver. Different from other existing homodyne or conventional differential PSK/QPSK systems, the proposed PSK and QPSK modulation formats do not need any complicated pre-coder, post-processor or local oscillator. In the proposed QPSK systems, simultaneous detection of in-phase and quadature components is successfully achieved by using one Mach-Zehnder delay interferometer and following balanced detector, which significantly reduces the system complexity and implementation cost.

© 2007 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 20, 2007
Revised Manuscript: April 2, 2007
Manuscript Accepted: April 2, 2007
Published: June 7, 2007

Citation
Guo-Wei Lu, Moriya Nakamura, Yukiyoshi Kamio, and Tetsuya Miyazaki, "40-Gb/s QPSK and 20-Gb/s PSK with inserted pilot symbols using self-homodyne detection," Opt. Express 15, 7660-7666 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-12-7660


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References

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