Title :
Performance Analysis of a Photonic-Assisted Periodic Triangular-Shaped Pulses Generator
Author :
Li, Jing ; Zhang, Xiupu ; Hraimel, Bouchaib ; Ning, Tigang ; Pei, Li ; Wu, Ke
Author_Institution :
Key Lab. of All Opt. Network & Adv. Telecommun. Network of Minist. of Educ., Beijing Jiaotong Univ., Beijing, China
fDate :
6/1/2012 12:00:00 AM
Abstract :
We propose and analyze a photonic-assisted periodic triangular-shaped pulses generator, in which a continuous wave (CW) laser is connected to a dual electrode Mach-Zehnder modulator (De-MZM), and then the De-MZM is connected with a normal dispersion fiber or element. A radio frequency (RF) sinusoid directly drives the De-MZM to obtain optical subcarrier modulation with optical carrier suppression. By carefully setting the physical parameters, the generated harmonics of optical intensity can be corresponding to the Fourier components of typical periodic triangular pulses. Numerical simulations reveal that modulation index must be set to 2.305 and bias voltage drift must be within a range from from the minimum transmission of the De-MZM. In addition, the dispersion must be set correctly to suppress the primary distortion of 4th order harmonics.
Keywords :
Fourier transform optics; Mach-Zehnder interferometers; numerical analysis; optical fibre dispersion; optical modulation; optical pulse generation; optical pulse shaping; Fourier components; Mach-Zehnder modulator; continuous wave laser; dual electrode; generated harmonics; minimum transmission; normal dispersion fiber; numerical simulations; optical carrier suppression; optical intensity; optical subcarrier modulation; periodic triangular-shaped pulses generator; photonic-assisted pulses generator; radio frequency sinusoid; Harmonic analysis; Optical distortion; Optical fibers; Optical modulation; Optical pulses; All-optical networks; arbitrary waveform generation; radio frequency photonics;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2187880
