Phase recovery by using optical fiber dispersion.
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.
C
C
Cuadrado-Laborde
A
A
Carrascosa
P
P
Pérez-Millán
A
A
Díez
J L
JL
Cruz
M V
MV
Andres