Title :
Photonic-Assisted Periodic Triangular-Shaped Pulses Generation With Tunable Repetition Rate
Author :
Jing Li ; Tigang Ning ; Li Pei ; Wei Jian ; Haidong You ; Hongyao Chen ; Chan Zhang
Author_Institution :
Key Lab. of All Opt. Network & Adv. Telecommun. Network of Minist. of Educ., Beijing Jiaotong Univ., Beijing, China
Abstract :
An optical triangular-shaped pulses generator with tunable repetition rate is proposed and analyzed. Using optical carrier suppression modulation and active polarization control, the optical intensity with its expression corresponding to the Fourier expansion of typical triangular-shaped waveform can be generated. It is also found that the pulses repetition rate is only dependent on the driving frequency of local oscillator. Thus, by changing it, continuous tunability of repetition rate is obtained. The mechanism is first analyzed by theory and then verified by simulation. Continuous tunability of the repetition rate (20-40 GBps) is obtained by using one 50/100-GHz optical interleaver. The proposal might be attractive since tuning the repetition rate requires only one frequency-tunable oscillator.
Keywords :
microwave photonics; optical modulation; optical pulse generation; optical tuning; oscillators; Fourier expansion; active polarization control; bit rate 20 Gbit/s to 40 Gbit/s; frequency 100 GHz; frequency 50 GHz; frequency tunable oscillator; local oscillator; optical carrier suppression modulation; optical intensity; optical interleaver; photonic-assisted periodic triangular-shaped pulse generation; tunable repetition rate; Amplitude modulation; Nonlinear optics; Optical fibers; Optical modulation; Optical polarization; Optical pulse shaping; Optical pulses; All-optical signal processing; optical triangular-shaped pulses; radio frequency photonic;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2253454
