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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 13 — Jun. 25, 2007
  • pp: 8444–8453

All-optical modulation format conversion from on-off-keying to multiple-level phase-shift-keying based on nonlinearity in optical fiber

Ken Mishina, Satoru Kitagawa, and Akihiro Maruta  »View Author Affiliations

Optics Express, Vol. 15, Issue 13, pp. 8444-8453 (2007)

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We propose an all-optical modulation format conversion scheme from non-return-to-zero on-off-keying (NRZ-OOK) to return-to-zero (RZ) multiple-level phase-shift-keying (PSK) based on nonlinearity in optical fiber. The proposed conversion scheme is numerically investigated and experimentally demonstrated. We experimentally demonstrate error-free operation of NRZ-OOK/RZ- binary PSK conversion at 10.7 Gb/s. The operation of the NRZ-OOK/RZ-quadrature PSK conversion is shown by eye opening after balanced receiving at a symbol rate of 10.7 Gsymbol/s. In addition, we demonstrate the feasibility of the modulation format conversion from NRZ-OOK to RZ-8-levels PSK by numerical simulation.

© 2007 Optical Society of America

OCIS Codes
(060.5060) Fiber optics and optical communications : Phase modulation
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: March 8, 2007
Revised Manuscript: June 15, 2007
Manuscript Accepted: June 18, 2007
Published: June 22, 2007

Ken Mishina, Satoru Kitagawa, and Akihiro Maruta, "All-optical modulation format conversion from on-off-keying to multiple-level phase-shift-keying based on nonlinearity in optical fiber," Opt. Express 15, 8444-8453 (2007)

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