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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 5 — Mar. 6, 2006
  • pp: 1720–1725

3-bit/symbol optical data format based on simultaneous DRZ, DPSK and PolSK orthogonal modulations

C. W. Chow, C. H. Kwok, H. K. Tsang, and Chinlon Lin  »View Author Affiliations


Optics Express, Vol. 14, Issue 5, pp. 1720-1725 (2006)
http://dx.doi.org/10.1364/OE.14.001720


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Abstract

We propose a novel 3-bit/symbol optical data format based on simultaneously modulating dark-return-to-zero (DRZ), differential-phase-shift-keying (DPSK) and polarization-shift-keying (PolSK) on the same optical carrier. Transmission performance is investigated. The proposed data format has a more compact spectrum when compared with other modulation schemes (at the same data rate), such as return-to-zero (RZ), DPSK and PolSK. It is also more tolerant to phase noise when compared with optical-differential-quadrature-phase-shift-keying (ODQPSK).

© 2006 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 19, 2005
Revised Manuscript: February 6, 2006
Manuscript Accepted: February 28, 2006
Published: March 6, 2006

Citation
C. W. Chow, C. Kwok, H. Tsang, and Chinlon Lin, "3-bit/symbol optical data format based on simultaneous DRZ, DPSK and PolSK orthogonal modulations," Opt. Express 14, 1720-1725 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-5-1720


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References

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  8. T. Miyazaki, and F. Kubota, "Superposition of DQPSK over inverse-RZ for 3-bit/symbol modulation-demodulation," IEEE Photonics Technol. Lett. 16, 2643-2645 (2004). [CrossRef]
  9. M. Ogusu, K. Ide, and S. Ohshima, "Ultra-dence WDM with over 100% spectral efficiency using co-polarized 40-Gb/s Inverse-RZ signals," IEICE Trans. Commun. 88, 195-202 (2005).E [CrossRef]

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