Abstract

We summarize three electrical decision schemes that have been proposed for 8-level differential phase-shift keying, briefly discuss their performance and complexity, and comment that two of these schemes have been confused in an earlier comparison in Optics Express.

© 2006 Optical Society of America

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References

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  1. H. Yoon, D. Lee, and N. Park, "Performance comparison of optical 8-ary differential phase-shift keying systems with different electrical decision schemes," Opt. Express 13, 371-376 (2005).
    [CrossRef] [PubMed]
  2. M. Ohm, "Optical 8-DPSK and receiver with direct detection and multilevel electrical signals," in 2004 IEEE/LEOS Workshop on Advanced Modulation Formats, pp. 45-46 (2004).
  3. C. Kim and G. Li, "Direct-detection optical differential 8-level phase-shift keying (OD8PSK) for spectrally efficient transmission," Opt. Express 12, 3415-3421 (2004).
    [CrossRef] [PubMed]
  4. Y. Han, C. Kim, and G. Li, "Simplified receiver implementation for optical differential 8-level phase-shift keying," Electron. Lett. 40, 1372-1373 (2004).
    [CrossRef]
  5. Y. Han and G. Li, "Sensitivity limits and degradations in OD8PSK," IEEE Photonics Technol. Lett. 17, 720-722 (2005).
    [CrossRef]
  6. M. Serbay, C. Wree, and W. Rosenkranz, "Experimental Investigation of RZ-8DPSK at 3x 10.7Gb/s," in 18th annual meeting of the IEEE Laser and Electro-Optics Society, LEOS 2005, p. WE3 (2005).
  7. M. Ohm and J. Speidel, "Optimal receiver bandwidths, bit error probabilities and chromatic dispersion tolerance of 40Gbit/s optical 8-DPSK with NRZ and RZ impulse shaping," in Optical Fiber Communication Conference, 2005. Technical Digest. OFC/NFOEC, p. OFG5 (2005).
  8. Y. Okunev, Phase And Phase-Difference Modulation In Digital Communications (Artech House, Norwood MA, USA, 1997).

2005 (2)

2004 (2)

C. Kim and G. Li, "Direct-detection optical differential 8-level phase-shift keying (OD8PSK) for spectrally efficient transmission," Opt. Express 12, 3415-3421 (2004).
[CrossRef] [PubMed]

Y. Han, C. Kim, and G. Li, "Simplified receiver implementation for optical differential 8-level phase-shift keying," Electron. Lett. 40, 1372-1373 (2004).
[CrossRef]

Han, Y.

Y. Han and G. Li, "Sensitivity limits and degradations in OD8PSK," IEEE Photonics Technol. Lett. 17, 720-722 (2005).
[CrossRef]

Y. Han, C. Kim, and G. Li, "Simplified receiver implementation for optical differential 8-level phase-shift keying," Electron. Lett. 40, 1372-1373 (2004).
[CrossRef]

Kim, C.

Y. Han, C. Kim, and G. Li, "Simplified receiver implementation for optical differential 8-level phase-shift keying," Electron. Lett. 40, 1372-1373 (2004).
[CrossRef]

C. Kim and G. Li, "Direct-detection optical differential 8-level phase-shift keying (OD8PSK) for spectrally efficient transmission," Opt. Express 12, 3415-3421 (2004).
[CrossRef] [PubMed]

Lee, D.

Li, G.

Y. Han and G. Li, "Sensitivity limits and degradations in OD8PSK," IEEE Photonics Technol. Lett. 17, 720-722 (2005).
[CrossRef]

Y. Han, C. Kim, and G. Li, "Simplified receiver implementation for optical differential 8-level phase-shift keying," Electron. Lett. 40, 1372-1373 (2004).
[CrossRef]

C. Kim and G. Li, "Direct-detection optical differential 8-level phase-shift keying (OD8PSK) for spectrally efficient transmission," Opt. Express 12, 3415-3421 (2004).
[CrossRef] [PubMed]

Park, N.

Yoon, H.

Electron. Lett. (1)

Y. Han, C. Kim, and G. Li, "Simplified receiver implementation for optical differential 8-level phase-shift keying," Electron. Lett. 40, 1372-1373 (2004).
[CrossRef]

IEEE Photonics Technol. Lett. (1)

Y. Han and G. Li, "Sensitivity limits and degradations in OD8PSK," IEEE Photonics Technol. Lett. 17, 720-722 (2005).
[CrossRef]

Opt. Express (2)

Other (4)

M. Ohm, "Optical 8-DPSK and receiver with direct detection and multilevel electrical signals," in 2004 IEEE/LEOS Workshop on Advanced Modulation Formats, pp. 45-46 (2004).

M. Serbay, C. Wree, and W. Rosenkranz, "Experimental Investigation of RZ-8DPSK at 3x 10.7Gb/s," in 18th annual meeting of the IEEE Laser and Electro-Optics Society, LEOS 2005, p. WE3 (2005).

M. Ohm and J. Speidel, "Optimal receiver bandwidths, bit error probabilities and chromatic dispersion tolerance of 40Gbit/s optical 8-DPSK with NRZ and RZ impulse shaping," in Optical Fiber Communication Conference, 2005. Technical Digest. OFC/NFOEC, p. OFG5 (2005).

Y. Okunev, Phase And Phase-Difference Modulation In Digital Communications (Artech House, Norwood MA, USA, 1997).

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Figures (1)

Fig. 1.
Fig. 1.

Decision boundaries (dashed) of 8-DPSK receivers used in various publications; receiver (a) was used in [1, 3–6], (b) in [1, 7], and (c) in [2]. The scale is proportional to optical amplitudes.

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