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RZ/CSRZ-DPSK and Chirped NRZ Signal Generation Using a Single-Stage Dual-Electrode Mach-Zehnder Modulator
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- Authors
- Yang Jing Wen, A. Nirmalathas, Dong Soo Lee
- Issue Date
- 2004-11
- Citation
- IEEE Photonics Technology Letters, v.16, no.11, pp.2466-2468
- Language
- English
- Type
- Journal Article
- Abstract
- This letter presents a novel configuration for return-to-zero (RZ) differential phase-shift keyed (DPSK), carrier-suppressed (CS) RZ DPSK, and chirped nonreturn-to-zero (CNRZ) signal generation, which only requires a single-stage dual-electrode Mach-Zehnder modulator (DE-MZM). RZ-DPSK, CSRZ-DPSK, or CNRZ signals can be generated via the same configuration by changing the DE-MZM operating conditions. Analytical derivation and simulation on signal generation and wavelength-division-multiplexed transmission was also carried oul to justify the equivalence of the proposed scheme and conventional methods. The proposed scheme is expected to be more cost-effective due to the reduction in required modulator number. © 2004 IEEE.
- KSP Keywords
- Analytical derivation, CSRZ-DPSK, Conventional methods, Dual-electrode Mach-Zehnder modulator(DE-MZM), Mach-Zehnder(MZ), Novel configuration, Operating conditions, Phase shift, Signal generation, Wavelength Division Multiplexing(WDM), cost-effective