All-optical regenerative NRZ-OOK-to-RZ-BPSK format conversion using silicon waveguides
Optics Letters, Vol. 34, Issue 1, pp. 58-60 (2009)
http://dx.doi.org/10.1364/OL.34.000058
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Abstract
We propose a scheme to achieve regenerative format conversion from a distorted non-return-to-zero-on–off-keying (NRZ-OOK) signal to a return-to-zero-binary-phase-shift-keying (RZ-BPSK) signal of high quality in an integrated device. This proposal is achieved by employing an interferometer on a silicon chip with a coupled ring resonator optical waveguide embedded in one arm. In this scheme the amplified NRZ-OOK signal is injected into the converter together with a locally generated return-to-zero (RZ) pulse train at a different wavelength. Owing to the linear and nonlinear effects in the silicon waveguides, the RZ pulse train changes to a clean RZ-BPSK signal after it is cross modulated by the NRZ-OOK signal. To verify the feasibility of our scheme, we simulate the conversion at
© 2008 Optical Society of America
OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(200.4560) Optics in computing : Optical data processing
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: September 2, 2008
Revised Manuscript: November 10, 2008
Manuscript Accepted: November 13, 2008
Published: December 24, 2008
Citation
Cishuo Yan, Tong Ye, and Yikai Su, "All-optical regenerative NRZ-OOK-to-RZ-BPSK format conversion using silicon waveguides," Opt. Lett. 34, 58-60 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-1-58
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