A simple scheme for the generation of full-duty-cycle triangular pulses is proposed and experimentally demonstrated using a dual-parallel Mach–Zehnder modulator driven by a single-frequency RF signal. By properly setting the bias voltages and the RF power, even-order harmonics in the optical intensity are suppressed, and the amplitude of the first-order harmonic is 9 times of that of the third-order harmonic. A periodical triangular pulse train is obtained in the time domain. 2.5, 5, and 10 GHz triangular pulse trains are experimentally generated, which verifies the feasibility of the proposed scheme.
© 2013 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: August 19, 2013
Revised Manuscript: September 27, 2013
Manuscript Accepted: September 29, 2013
Published: October 31, 2013
Fangzheng Zhang, Xiaozhong Ge, and Shilong Pan, "Triangular pulse generation using a dual-parallel Mach–Zehnder modulator driven by a single-frequency radio frequency signal," Opt. Lett. 38, 4491-4493 (2013)