Born in Quimper, France, in 1981, Fohlen wanted to become a comic strip artist, before discovering photography. He has been published in The New York Times, Paris Match, Libération, Stern, Le Monde and Die Zeit.
Fohlen has received a number of awards. He turned his extended stays in Haiti into the book, Haïti, which was published in January 2017 by Editions Light Motiv.