Optical ultra-wideband pulse generation and distribution using a dual-electrode Mach-Zehnder modulator
Chinese Optics Letters, Vol. 8, Issue 2, pp. 138-141 (2010)
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Abstract
A novel approach to generate and distribute ultra-wideband (UWB) pulses in optical domain is investigated. In this proposed scheme, a dual-electrode Mach-Zehnder modulator (DE-MZM) is biased at its quadrature point so as to realize the linear response. Then the intensity of output optical field can be assumed to the subtraction of two input Gaussian pulses. If the input Gaussian pulses are with the same sharp parameters but different time delays, a quasi-monocycle-waveform UWB signal can be generated. If the input Gaussian pulses are with different amplitudes and full-width at half-maximum (FWHM), a quasi-doublet-waveform UWB signal can be generated. A transmission of the UWB signals through a 25-km single mode fiber is carried out successfully. The results in both temporal and frequency domains are also presented.
© 2010 Chinese Optics Letters
OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.5625) Fiber optics and optical communications : Radio frequency photonics
Citation
Jing Li, Tigang Ning, Li Pei, and Chunhui Qi, "Optical ultra-wideband pulse generation and distribution using a dual-electrode Mach-Zehnder modulator," Chin. Opt. Lett. 8, 138-141 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-2-138
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