An all-fiber approach to generate triangular-shaped pulses based on frequency-to-time conversion is proposed and demonstrated. Two filter modules that have sinusoidal spectral responses are cascaded to create a triangular-shaped optical spectrum. Through the frequency-to-time conversion in a dispersive fiber, periodic triangular pulses with the same shape as the optical spectrum are obtained. The repetition rate and pulse width of the generated signals can be tuned by adjusting the modulation rate and the dispersion value, respectively.
© 2011 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: November 18, 2010
Revised Manuscript: March 13, 2011
Manuscript Accepted: March 17, 2011
Published: April 14, 2011
Jia Ye, Lianshan Yan, Wei Pan, Bin Luo, Xihua Zou, Anlin Yi, and Steve Yao, "Photonic generation of triangular-shaped pulses based on frequency-to-time conversion," Opt. Lett. 36, 1458-1460 (2011)