We propose a simple and fast procedure to retrieve the phase profile of arbitrary light pulses. It combines a first experimental stage, followed by a one-step numerical stage. To this end, it is necessary to perform a Fresnel transform, which is obtained just by propagating the light pulses through an optical fiber. We experimentally test this proposal recovering the phase profile in the light pulses provided by a passively mode-locked laser. The proposal is then compared with a temporal variation of the Gerchberg–Saxton recursive algorithm, which is specially modified for this purpose.
© 2014 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: August 15, 2013
Revised Manuscript: December 9, 2013
Manuscript Accepted: December 21, 2013
Published: January 28, 2014
C. Cuadrado-Laborde, A. Carrascosa, P. Pérez-Millán, A. Díez, J. L. Cruz, and M. V. Andres, "Phase recovery by using optical fiber dispersion," Opt. Lett. 39, 598-601 (2014)